EXHIBIT NO. 10(b)
MASTER LICENCE AGREEMENT between:

(1)  NEW TRANSDUCERS  LIMITED a company  incorporated  under the laws of England
     and Wales and  registered  in England  with  number  3135528 and having its
     registered office at Stonehill, Huntingdon PE18 6ED, England ("NXT").

(2)  NCT AUDIO  PRODUCTS,  INC. a Delaware  corporation  with  offices at 1025
     West Nursery Road, Linthicum, Maryland 21090 USA ("the Licensee").


WHEREAS:

(A)  NXT  has  developed  distributed  mode  acoustic  technology  enabling  the
     manufacture  of  a  lightweight  panel  loudspeaker  which  radiates  sound
     efficiently  and evenly  over a wide  frequency  range and a wide  acoustic
     area.

(B)  NXT owns  certain  patent  and  other  rights,  together  with  substantial
     know-how relating to its distributed mode loudspeaker  technology covering,
     amongst  other  things,  both the  manufacture  of  loudspeakers  and their
     integration into other systems.

(C)  NXT has acquired a reputation in relation to distributed mode  loudspeakers
     and has valuable goodwill in its trade marks and names.

(D)  NXT has entered  into  exclusive  licensing  arrangements  with the Defence
     Evaluation & Research Agency of the United Kingdom  Ministry of Defence and
     with Noise Cancellation  Technologies Inc., for additional patent and other
     rights,  but both of which  limit NXT to certain  fields and  applications.
     Therefore,  NXT must ensure that its  licensees'  activities  correspond to
     those fields and applications.

(E)  NXT has  selected  licensed  end users who are able to use the  distributed
     mode  acoustic  technology  to make or assemble  products  to the  required
     technical standard.

(F)  The  Licensee  believes  it can  develop  a  substantial  demand  for NXT's
     distributed mode loudspeakers using NXT's patent rights, know-how and trade
     marks.







NOW IT IS AGREED AS FOLLOWS:

NXT hereby  grants to the Licensee  the rights set out in the attached  Standard
Licence  Terms  (which  are  incorporated   into  this  Licence   Agreement)  in
consideration  for the Licensee's  payments,  covenants and  obligations set out
below and in the said Standard Licence Terms.

In this Licence  Agreement and in the  accompanying  Standard  Licence Terms the
following words and expressions shall have the meanings shown.

"Field                  of Use" all Fields subject to Schedule 2 of the Standard
                        Licence  Terms  which  contains  details  of  particular
                        matters which are expressly excluded.

"Licensed Products"     flat panel loudspeakers using the IPRs.

"NXT Assemblies"        loudspeakers   which   use  the  IPRs  and  which  are
                        supplied by an NXT Master Licensee.

"NXT                    Licensee"  a party  which has the right  under a licence
                        agreement  with NXT to use the IPRs to  manufacture  and
                        assemble,  distribute,  market, sell and use products in
                        the Field of Use.

"NXT                    Master  Licensee"  a  party  which  has  entered  into a
                        licence  agreement  in the same terms (or  substantially
                        the same terms) as this Licence Agreement.

"NXT                    User  Licensee"  a party  which  has the  right  under a
                        licence   agreement   with   NXT  to  use  the  IPRs  to
                        incorporate NXT Assemblies into products in the Field of
                        Use to the required technical and quality standards.


"NXT                    User   Licence"   a  licence   agreement   with  NXT  to
                        incorporate  NXT Assemblies in the Field of Use supplied
                        by an NXT Master  Licensee into its NXT User  Licensee's
                        own products.

"Production Territory"  worldwide

"Sales Territory"       worldwide

The following payments referred to in the Standard Licence Terms shall be:

"Initial Licensing Fee" US$: nil

"Annual Licensing Fee"  US$: nil

"Royalty                Rate" 1. For Licensed Products manufactured,  assembled,
                        supplied or sold as finished  products destined for sale
                        to end users the Royalty Rate shall be the greater of 2%
                        of Net Sales Revenue or US$0.10 (ten cents) per Licensed
                        Product or

                        2.  for  Licensed  Products  manufactured,  assembled,
      supplied or sold as products adapted or destined for incorporation  into
      products of NXT Licensees the Royalty Rate shall be:

                              US$0.92 per each electrodynamic transducer
                              US$0.74 per each piezoelectric transducer

                        provided  that (a) where NXT agrees  Royalty  Rates with
                        other NXT  Master  Licensees  which  are lower  than the
                        rates  specified in 2 above ("the Third Party Rate") the
                        Royalty Rate payable by the Licensee shall be reduced to
                        the Third Party Rate less eight  percent  (8%) ("the New
                        Royalty   Rate")  and  NXT  shall  inform  the  Licensee
                        accordingly.  The New  Royalty  Rate shall be payable by
                        the   Licensee   with   effect   from  the  quarter  day
                        immediately  following  notification  of the New Royalty
                        Rate  by NXT;  and (b) in  order  to take  into  account
                        market  conditions  the parties may need to  renegotiate
                        separate   Royalty  Rates  for  Licensed   Products  for
                        different Fields of Use provided that the concept of the
                        new Royalty Rate referred to in (a) above shall continue
                        to apply to such renegotiated rates.

The Licencee  shall have the right to execute NXT User Licences on behalf of NXT
in the  precise  terms as notified in writing by NXT from time to time and shall
send  to NXT a copy  of any  such  User  Licence  within  14  calendar  days  of
execution.






IN WITNESS  WHEREOF the duly  authorised  representatives  of the  parties  have
executed this Licence  Agreement which is made the day and year of the signature
for and on behalf of New Transducers Limited.


Signed for and on behalf of               )
NEW TRANSDUCERS LIMITED                   )     /s/ Ernest Schneider
this 27th day of September 1997           )     name and position:  Director
date of signature and of this Agreement   )





Signed for and on behalf of the           )
LICENSEE                                  )     /s/ Michael J. Parrella
                                          )     name and position:  CEO








            These are the Standard License Terms referred to in the
            accompanying Licence Agreement and initialled for
            identification purposes
                  ES                            MJP
            New Transducers Limited             The Licensee

                             STANDARD LICENCE TERMS

1     Definitions

In these Standard  Licence Terms and the  accompanying  Licence  Agreement,  the
following words and expressions shall have the meanings shown.

"the Agreement"               the  accompanying  Licence  Agreement  and these
                             Standard Licence Terms.

"New Cross Licence"           the  New  Cross  Licence   Agreement   dated  27
                           September 1997 by
                           and   between   Verity   Group  plc,   NXT,   Noise
                           Cancellation
                           Technologies, Inc. and the Licensee.

"Associated Company"          (i)   any  legal  entity in which a party has an
                              Interest;
                           (ii) any legal entity which  directly or indirectly
                              Controls a party ("Parent");
                           (iii)    any legal  entity in which a Parent has an
                              Interest; or
                           (iv)  OnActive   Technologies  LLC  so  long  as  the
                              percentage  of voting  rights held by the Licensee
                              in  that   Company   does  not  fall  below  42.5%
                              (forty-two point five percent).

                           For purposes of this Agreement "Control" of an entity
                           shall be deemed  to exist by  virtue  of  having  the
                           right to influence the operation and affairs  thereof
                           by holding directly 51% or more of each of the equity
                           interests   and   voting   rights  in  such   entity.
                           "Interest"  in an entity  shall be deemed to exist by
                           virtue of owning  voting  rights  equal to or greater
                           than 50% of all voting rights in such entity.

"Commencement Date"           the  date  of  the  attached  Licence  Agreement
                           which  is the  date  of its  signature  for  and on
                           behalf of NXT.

"Copyright"                copyright,  design  right and all  other  rights in
                           the nature of  copyright  and  design  right in the
                            Supporting Documentation.

"Improvement(s)"           any     addition,     development,     improvement,
                           modification  or  adaptation  of any of the IPRs or
                           new application of any of the IPRs.


"IPRs"                        the NCTI Patents, the NCTI Technology,  the NCTI
                           IPR, the NXT Patents,  the NXT  Technology  and the
                           NXT  IPR  as  defined  in  the  New  Cross  Licence
                           together   with  Know   How,   the  Marks  and  the
                           Copyright  which are owned by or  licensed  (with a
                           right  to  sublicense)  to NXT and  which  directly
                           concern the  manufacture,  assembly,  distribution,
                           marketing,  sale and use of the  Licensed  Products
                           under the Marks.

"Know How"                 the   Supporting    Documentation   together   with
                           confidential information,  advice, descriptions and
                           other technical data (whether  written,  oral or in
                           any  other   form,   provided   that   where   such
                           information,  advice, descriptions or data is first
                           disclosed  orally it shall be confirmed in writing)
                           which are  supplied  by NXT to the  Licensee at any
                           time under the Agreement which support,  amplify or
                           explain  the   specifications   or  claims  of  the
                           Patents to the extent that the aforesaid

                           i) is not  published  or  otherwise  in the  public
                              domain   (otherwise  than  by  any  unauthorised
                              disclosure by the Licensee); or

                           ii)was known to the Licensee  (otherwise than through
                              NXT or its agents or the  unauthorised  disclosure
                              by any third party).

"Marks"                       the registered and unregistered  trade marks set
out in Schedule 1.

"Net Revenue Sales"           the  revenues  received  from  the  sale  by the
                           Licensee of the Licensed Products less:

                           i) costs of packing, transportation and insurance;
                           ii)  sales,  value  added and other taxes not based
                              on income;
                           iii) ordinary trade discounts and commissions;
                           iv)  customs duties and expenses; and
                           v) royalties payable to third parties

                           In the  event of sales of  Licensed  Products  by the
                           Licensee  other than to a third party in a commercial
                           arm's  length  transaction,  the Net  Sales  Revenues
                           shall be the amount  which would have been charged by
                           the   Licensee   in   a   commercial   arm's   length
                           transaction.

"NXT                       Improvements" an Improvement  created or arising as a
                           result of technical assistance, training, research or
                           development carried out by NXT for the Licensee.

"Sale"                    sale or any other disposal by the Licensee  (whether
for value or not) which shall (including "sales", "sell", "sold" etc.)
include lease, hire or any other transaction which transfers ownership
                          or possession of any Licensed Product.

"Supporting               Documentation"  the  documents,   software  and  other
                          materials  to be  supplied  by NXT to the  Licensee to
                          assist  the   Licensee   to   manufacture,   assemble,
                          distribute, market sell and use the Licensed Products.

"US Consumer Price Index" the Consumer  Price Index for all  Consumers,  US City
Average  (1982 - 84 = 100  ("CPI") All Item  Index,  published  by the Bureau of
Labor
                          Statistics, United States Department of Labor.

                          If the CPI shall cease to be compiled and published at
                          any  time  during  the  term of the  Agreement,  but a
                          comparable  successor  index is compiled and published
                          by the  Bureau  of  Labor  Statistics,  United  States
                          Department  of Labor,  such  successor  index shall be
                          used for the purposes of the Agreement. If neither the
                          CPI, nor a comparable  successor  index is compiled by
                          the Bureau of Labor  Statistics,  the index reflecting
                          cost  of  living  increases  generally  recognised  by
                          financial  and  insurance  institutions  in the United
                          States shall be used.

2     Commencement and Duration

2.1   Subject to the following provisions,  the Agreement shall come into effect
      on the Commencement Date.

2.2   If any governmental or other approval is required, then the Licensee shall
      use its best efforts to secure such  approval of the Agreement in the same
      form as  executed  and the  Commencement  Date  shall  be the date of such
      approval being obtained by the Licensee.  If such approval is not obtained
      within one year from the date of the Agreement  then the  Agreement  shall
      automatically cease to be of any further effect.

2.3   The  Agreement and the licence  granted  under it shall  continue from the
      Commencement Date until terminated in accordance with the terms hereof.

3     Grant

3.1   In consideration  for the Initial  Licensing Fee, the Annual Licensing Fee
      and the royalties  payable under the  Agreement,  NXT hereby grants to the
      Licensee a non-exclusive non-assignable licence to use in the Field of Use
      the IPRs and the NXT Improvements to manufacture and assemble the Licensed
      Products in the Production  Territory and to distribute,  market, sell and
      use the Licensed Products in the Field of Use in the Sales Territory.

3.2   The Licensee may not sub-license the IPRs to any party (including  without
      limitation any Associated Company of the Licensee).

3.3   NXT shall upon written  request by the Licensee extend the Agreement to an
      Associated  Company  of the  Licensee  on the same terms  (except  that no
      further  Initial and Annual  Licensing Fees shall become due) provided the
      Associated  Company  covenants  directly with NXT to observe the terms and
      conditions of the Agreement in the terms of the draft letter agreement set
      out in Schedule 3. The Licensee shall be jointly and severally responsible
      with any  Associated  Company to which the Agreement has been extended for
      the performance by that Associated  Company of the terms and conditions of
      this  Agreement.  For the purposes of reporting  sales and making  royalty
      payments,  the Licensee  shall inform NXT whether  sales of an  Associated
      Company  shall be  deemed  to be  sales of the  Licensee  or  whether  the
      Associated Company shall make the reports and royalty payments directly to
      NXT.

3.4   The Licensee may sub-contract in the Production  Territory the manufacture
      and/or assembly of the Licensed Products (and/or components therefor which
      require the use of the IPRs) provided:

            i)    the Licensee  informs NXT in writing of the identity of such
sub-contractor;

            ii)   the  sub-contractor  has a separate written agreement with the
                  Licensee which  expressly  prohibits the  sub-contractor  from
                  supplying   any   third   party   and   which   requires   the
                  sub-contractor  to comply  mutatis  mutandi with the terms and
                  conditions of this Agreement (including without limitation the
                  confidentiality obligations in clause 13); and

      The Licensee may not commence using the proposed sub-contractor until both
      of the above conditions are satisfied.  The use of a sub-contractor  shall
      not relieve the Licensee of any of its obligations  under the Agreement to
      NXT.  The  Licensee  shall be  liable  for any  activities  or  threatened
      activities of the  sub-contractor  (whether  authorised by the Licensee or
      not)  which  are  inconsistent  with  the  terms  and  conditions  of this
      Agreement and the Licensee shall fully and promptly protect, hold harmless
      and indemnify NXT against all damage,  loss, expenses and costs (including
      reasonable  legal fees and expenses)  arising out of the  sub-contractor's
      activities  or  threatened  activities  and  any  steps  taken  by  NXT to
      terminate such matters.

3.5   The  Licensee  acknowledges  that the  grant  of  rights  to the  Licensee
      pursuant to clause 3 is conditional  on the Licensee  marking all Licensed
      Products with the Marks in accordance with the terms of the Agreement. The
      Licensee  further  acknowledges  that a failure to comply with the marking
      provisions  will  result  in  the  manufacture,   assembly,  distribution,
      marketing,  sale or use (as the case may be) of  unlicensed  products  and
      will constitute  both a material breach of the Agreement and  infringement
      of the IPRs.

4     Supply of Supporting Documentation and Know How

4.1   Within  sixty  days from the  Commencement  Date NXT  shall  supply to the
      Licensee the Supporting Documentation.  At the Licensee's request, NXT may
      provide  additional  copies  of  the  Supporting  Documentation  where  it
      believes  that  it is  appropriate  to do so and at  such  cost  as it may
      decide.

4.2   NXT may (in its absolute  discretion)  supply to the Licensee such further
      Know How in its  possession  which it is free to disclose to the  Licensee
      and which may assist the Licensee to manufacture the Licensed Products.





==============================================================================

==============================================================================
5     Technical assistance

5.1   In  addition  to the  Supporting  Documentation,  NXT  shall  provide  the
      Licensee with a two-day  technical  briefing (at such date and location as
      NXT may in its absolute  discretion  determine)  on the use of the IPRs to
      manufacture the Licensed Products.

5.2   To the fullest  extent as is  permissible  by law, all  liability  for the
      technical  assistance provided by NXT to the Licensee or for NXT's failure
      to provide such assistance is excluded.

5.3   Should the Licensee require  technical  assistance  beyond that allowed in
      sub-clause  5.1 or require  training,  research  or  development,  NXT may
      provide such services at the rate of US$ 1,000 per day (plus out of pocket
      expenses and VAT if applicable)  and on further terms to be agreed between
      the parties.

6     Intellectual property

6.1   The Agreement licenses a package of rights consisting of the Patents,  the
      Know  How  and  the  Marks.  No  territorial   restrictions   relating  to
      distribution,  marketing  and sales of the  Licensed  Products  are placed
      either on the  Licensee  or its  customers.  Under  sub-clause  15.2,  the
      royalty  payments  reduce by 33% upon  expiry of the last of the  Patents.
      Accordingly,  the Licensee  acknowledges  NXT's right to receive royalties
      for the full period  during which the Licensee  continues to  manufacture,
      assemble, market, distribute or sell the Licensed Products notwithstanding
      that within the Sales Territory some or even all of the  registrations for
      patent  and/or trade mark rights may not be applied for or fail to proceed
      to grant.

6.2   The  Licensee  hereby  acknowledges  and agrees that  subject to the terms
      hereof and the New Cross  Licence it shall not  acquire or hold any rights
      in respect of the IPRs nor in  respect of any NXT  Improvements.  All such
      rights shall belong to and shall vest in NXT and/or NXT's  licensors.  For
      the avoidance of doubt,  any rights  granted  hereunder in relation to any
      IPRs licensed by a third party to NXT shall automatically terminate on the
      termination of such third party licence to NXT.

6.3   The  Licensee  shall not do,  procure  or omit to do  anything  that might
      diminish  the  validity  or  subsistence  of the  IPRs  nor  NXT's  or NXT
      licensors' ownership of such rights. However,  neither this sub-clause nor
      anything in the Agreement  shall prevent the Licensee from  challenging or
      assisting  others to challenge the  ownership,  validity or subsistence of
      the IPRs or any part of it.

6.4   At the request of NXT, the Licensee shall use its commercially  reasonable
      endeavours to provide all reasonable  information and assistance to enable
      any of the IPRs to be registered with any appropriate body anywhere in the
      world  including,  without  limitation,  by the giving of written and oral
      evidence by the relevant employees and officers of the Licensee. NXT shall
      reimburse the Licensee in respect of its reasonable  out-of-pocket expense
      reasonably incurred in the provision of such information and assistance.

7     Warranties

7.1   NXT hereby represents and warrants that:

      7.1.1    it is the owner or licensee of the IPRs;

      7.1.2    it has  the  right  and  power  to  grant  the  licence  in the
               Agreement;

      7.1.3    so far as NXT is aware, there is no claim on its title; and

      7.1.4    it will use its commercially  reasonable endeavours to maintain
               the IPRs.

7.2   Subject to the above, NXT does not represent and excludes any warranty:

      7.2.1    that what is licensed  hereunder is useful,  of merchantable or
               satisfactory  quality  or fit  for  any  purpose  or is in good
               commercial form;

      7.2.2    that in  exercising  its rights  hereunder  no third  party might
               bring a claim or action against the Licensee for  infringement of
               any intellectual property right;







      7.2.3    as to the accuracy of the  technical  information  and the Know
               How; or

      7.2.4    that the IPRs are valid and enforceable.

7.3   Nothing in sub-clause 7.2 shall exclude,  restrict or modify any condition
      or product  warranty  implied in the Agreement by law where to do so would
      render sub-clause 7.2 void.

7.4   The Licensee hereby  represents and warrants that it has the  willingness,
      ability and resources to  manufacture,  assemble,  distribute,  market and
      sell commercially the Licensed Products.

8     Product liability

8.1   NXT shall have no  liability  whatsoever  to the  Licensee for any injury,
      loss or damage of any kind  sustained  or incurred by the  Licensee or any
      other person arising from or in connection with the manufacture, assembly,
      distribution,  marketing,  sale,  supply or use of the Licensed  Products.
      Nothing in this sub-clause shall exclude, restrict or modify any condition
      or warranty  implied by law where to do so would  render  this  sub-clause
      void.

8.2   The Licensee shall fully and promptly protect, hold harmless and indemnify
      NXT against all liabilities,  claims, damages,  losses, expenses and costs
      (including  reasonable  legal  fees  and  expenses)  arising  out  of  the
      manufacture,  assembly,  distribution,  marketing, sale, supply and use of
      the Licensed  Products by the Licensee or its  customers or arising out of
      the use of the IPRs by the Licensee.

9     Third party infringement and legal proceedings

9.1   The  Licensee  shall  immediately   report  to  NXT  any  infringement  or
      threatened  infringement  or  unauthorised  disclosure  or use of the IPRs
      which comes to its attention,  giving full  particulars of all information
      available to the Licensee in respect of such  infringement,  disclosure or
      use.

9.2   At NXT's  request,  the Licensee  shall  promptly  provide all  reasonable
      information  and assistance in respect of potential or actual  proceedings
      concerning the IPRs including,  without limitation,  the giving of written
      and oral evidence by the relevant employees and officers of the Licensee.


9.3   Subject to the New Cross  Licence  Agreement  the  Licensee  shall have no
      right to bring any proceedings or  counterclaims  against third parties in
      respect of the IPRs without the prior written consent of NXT.

10    NXT Improvements

10.1  The Licensee  shall keep  confidential  any NXT  Improvements  save to the
      extent that any such NXT  Improvement  is  published  or  otherwise in the
      public domain (other than by any unauthorised disclosure by the Licensee).
      The Licensee  shall  forthwith  communicate  full  particulars of such NXT
      Improvement to NXT together with all information available to the Licensee
      concerning  the mode of working  and using the same.  The  Licensee  shall
      execute all  documents  and do all such things  necessary to enable NXT to
      obtain, defend or enforce its rights in and to NXT Improvements.

11    Trade Marks

11.1  The  Licensee  shall use the Marks and only in relation to the  Licensed
      Products.

11.2  The Licensee  shall use the Marks as agreed with NXT from time to time and
      shall not manufacture,  assemble,  distribute, market or sell (or offer to
      distribute,  market or sell)  Licensed  Products  in  respect of which the
      Marks are not used or are used in a manner  other than agreed with NXT. It
      is  hereby  agreed  in  principle  that the  Licensee  shall use the Marks
      wherever  it uses its own  trade  marks,  but with  less  prominence  in a
      similar  manner as the use of the "Dolby"  mark and logo on document  hifi
      equipment.

11.3  The Licensee  shall not use any mark or name so resembling the Marks as to
      be likely to cause  confusion  or  deception  in  respect  of any goods or
      services  and  shall  use its best  endeavours  when  using  the  Marks to
      preserve and maintain their distinctiveness and reputation.

11.4  The Licensee shall not and shall procure that any Associated  Company of
      the Licensee does not

      11.4.1   use or register any name,  word or device  identical or similar
               to the Marks as part of a corporate,  business or trading name;
               or

      11.4.2   apply  to  register  anywhere  in the  world  any  mark  or  name
               identical  to or similar to the Marks in respect of the  Licensed
               Products or any other goods or services;

11.5  The Licensee shall make such  applications as NXT may reasonably  consider
      necessary  or desirable to record the Licensee as a licensee of all or any
      of the Marks.  The Licensee hereby agrees that such entry may be cancelled
      by NXT on termination of the Agreement and the Licensee hereby irrevocably
      authorises NXT to do such acts or things and will assist NXT so far as may
      be  necessary  to  achieve  such  cancellation   including  executing  any
      necessary documents.

11.6  The Licensee acknowledges that any and all goodwill and any and all rights
      resulting  from the  licensed use of each Mark shall accrue to the benefit
      of NXT. At the request of NXT, the  Licensee  shall  promptly  execute any
      confirmatory assignment to NXT of such rights.

11.7  Without  prejudice  to the  other  terms of the  Agreement,  the  Licensee
      undertakes  not to do or  authorise  to be done any act which  impairs any
      registration  of the  Marks,  diminishes  the  rights of NXT in the Marks,
      debases the Marks, or reduces the value of the Marks to NXT.

12    Quality control and marking

12.1  The License shall  manufacture  and/or  assemble the Licensed  Products in
      accordance with the reasonable  quality  standards as required by NXT from
      time to time and the  Licensee  shall not  distribute,  market or sell (or
      offer to distribute, market or sell) Licensed Products which do not comply
      with such quality standards.

12.2  The Licensee  shall ensure that each Licensed  Product shall comply at all
      times with all applicable  laws, and  regulations of governmental or other
      competent  authorities in each relevant  country and with any  established
      industry  standards  in both the  country  of origin  and the  country  of
      destination.

12.3  The Licensee  shall comply fully with NXT's  instructions  for marking the
      Licensed   Products   and/or  their  packaging   materials   and/or  their
      promotional  materials  with  such  notices  relating  to the  IPRs as are
      required by applicable laws or are desirable in the opinion of NXT.

12.4  The  Licensee  shall  comply  fully with NXT's  instructions  for  placing
      identifying  marks on the  Licensed  Products or on their  packaging in an
      inconspicuous  manner so that NXT can readily  identify the source of such
      Licensed Products.

13    Confidentiality

13.1  The parties hereto shall treat  "Confidential  Information" (as defined in
      the New Cross Licence) in accordance with the terms of clause 8 of the New
      Cross License.  Without prejudice to the generality of the foregoing,  the
      term Confidential Information shall include Know How.

13.2   The  provisions of  sub-clauses  13.1 shall survive  termination of the
       Agreement.

14    Initial Licensing Fee and Annual Licensing Fee

14.1  In  addition to any other sums that may be payable by the  Licensee  under
      any other provisions of the Agreement, the Licensee shall pay to NXT:

      14.1.1 the  non-reimbursable  Initial  Licensing Fee within thirty days of
      the Commencement Date in respect of the technology transferred pursuant to
      the Agreement; and

      14.1.2for as long as the Agreement  remains in force, the Annual Licensing
            Fee within thirty days of each anniversary of the Commencement Date.






15    Royalty

15.1  The Licensee shall pay running royalties to NXT calculated on the basis of
      the Royalty Rate set out in the accompanying Licence Agreement.

15.2  Each royalty  payment shall be reduced by 33% after the expiry (whether by
      effluxion of time or revocation) of the last of the Patents.

15.3  The royalty shall be calculated on the first day of January,  April,  July
      and  October  of each year and shall  account  for  sales  covered  by the
      Agreement but not included in any previous royalty calculation.

15.4  The Licensee shall account to and pay NXT the royalty due within one month
      of the above quarter days, together with a statement of:

      15.4.1   the number of Licensed  Products  sold  according to transducer
               type and the number of transducers per panel; and

      15.4.2   particulars of the calculation of the royalties payable.

16    Index-Linking, Payments and Taxation

16.1  Royalty  payments  and Annual  Licensing  Fee payments due on or after the
      first day of April 1998 shall be  adjusted  annually by the  increase  (if
      any)  in the US  Consumer  Price  Index  over  the  immediately  preceding
      calendar year.
16.2  The Licensee  shall pay all sums due under the  Agreement in United States
      dollars  in  immediately  available  funds to such  account  as NXT  shall
      nominate.

16.3  The Licensee  shall pay to NXT interest on all sums due and payable for so
      long as they are due and payable  but unpaid,  at the rate of 5% per annum
      over the base rate of Barclays Bank plce.

16.4  All sums payable  under the  Agreement  are  exclusive of Value Added Tax,
      consumption tax or other sales tax which shall where applicable be payable
      by the Licensee in addition.

16.5  All sums payable by the Licensee  hereunder  shall be paid in full without
      any set off or  counterclaim  and without  deduction or withholding on any
      ground  whatsoever,  save  only as may be  required  by law.  If any  such
      deduction or withholding is required by law in respect of any sum payable,
      the  Licensee  shall be  obliged to pay to NXT such  additional  amount as
      would ensure that after any such deductions or withholdings have been made
      NXT would have received a sum equal to the amount that it would  otherwise
      have received in the absence of any such deductions or withholdings. If it
      shall  appear  that any such sum as  aforesaid  is or is  likely  to be or
      become  subject to any such  deduction or  withholding  as  aforesaid  the
      parties shall consider together to what extent, if at all, it may lawfully
      be possible to mitigate the amount of such  deduction or withholding or of
      the amount required to be paid as aforesaid.


16.6  If the Licensee makes an additional  payment under sub-clause 16.5 for the
      account of NXT and NXT  receives or is granted a credit  against or relief
      or remission for, or repayment of, any tax paid or payable by the Licensee
      in respect of or calculated with reference to the deduction or withholding
      giving rise to such  payment,  NXT shall,  to the extent that it can do so
      without  prejudice to the retention of the amount of such credit,  relief,
      remission  or  repayment,  pay to the  Licensee  as the case may be,  such
      amount of the  deduction or  withholding  which will leave NXT (after such
      payment) in no better or worse  position than it would have been in if the
      Licensee had not been required to make such deduction or withholding.

17    Books and inspection

17.1  The Licensee shall keep detailed,  true and accurate books of account with
      regard to all sales of Licensed Products.

17.2  NXT or its appointed representatives may inspect on five days' notice such
      of the  Licensee's  records as may be  necessary to verify the accuracy of
      the books of accounts,  the  sub-clause  15.4  statements and the payments
      made  under the  Agreement.  In any  event,  NXT shall pay the fees of its
      appointed   representatives  in  performing  such  verification.   If  the
      verification  reveals an under or over payment, a correcting payment shall
      be made in thirty days of notification thereof.

18    Termination

18.1  NXT may terminate the Agreement forthwith at any time by giving seven days
      written notice where:

      18.1.1   the  Licensee  breaches any of the terms of the  Agreement  which
               cannot be remedied  or, if capable of remedy,  such breach is not
               remedied  within a  period  of  thirty  days  after  notification
               thereof;

      18.1.2   the Licensee  becomes  insolvent,  is  adjudicated  bankrupt or
               compounds  with or makes  any  arrangement  with or  makes  any
               general  assignment  for the benefit of its creditors or enters
               into liquidation,  whether  compulsorily or voluntarily (except
               for   the   purposes   of  a  bona   fide   reconstruction   or
               amalgamation)  or has a  receiver,  administrative  receiver or
               administrator  (or the equivalent  under United States or other
               relevant local  bankruptcy law) appointed over the whole or any
               part of its  undertaking  or  assets  or a  similar  occurrence
               under any jurisdiction  affects the Licensee or if the Licensee
               ceases or threatens  to cease or makes any  material  change in
               its business.

      18.1.3   the  Licensee  challenges  or  assists  others to  challenge  the
               validity,  subsistence or scope of the IPRs or NXT's ownership of
               or entitlement to use such rights;

      18.1.4   the   Agreement   or  any  part   thereof  is  held   invalid  or
               unenforceable by any court of competent jurisdiction or competent
               governmental  body  and  the  Licensee  and  NXT  fail  to  reach
               agreement as to amendment of the Agreement under clause 21.

19    Rights after termination

19.1  The  termination  of the  Agreement  howsoever  arising  shall not relieve
      either of the  parties of any  obligation  to the other  arising  prior to
      termination.

19.2  All moneys due under the Agreement shall be paid forthwith.

19.3  The  Licensee  shall not be  entitled  to a pro-rata  or any refund of the
      Annual Licensing Fee for the year of termination.

19.4 The licence granted under sub-clause 3.1 shall terminate forthwith.

19.5  The Licensee shall promptly  arrange for the destruction or, at the option
      of NXT, the return or surrender to NXT of all copies of:

      (i)      the Supporting Documentation; and

      (ii)     other  documents  or media on  which  the Know How is  contained,
               incorporated  or stored;  which are within  its  custody,  power,
               possession or control.

19.6  Notwithstanding termination of the licence granted in sub-clause 3.1 for a
      period of six months  following  the  termination  and  subject to all the
      terms of the Agreement, the Licensee may:

      19.6.1   manufacture Licensed Products and apply the Marks to the Licensed
               Products  where  this is to  fulfil  an order  received  prior to
               termination of the Agreement;

      19.6.2   effect  sales of Licensed  Products  held in stock at the time of
               termination  or  manufactured  thereafter in accordance  with the
               above provisions.

20    Assignment

      20.1     The Licensee shall not and shall not attempt to assign, transfer,
               mortgage,  charge or  otherwise  howsoever  part with its rights,
               duties and obligations  under the Agreement  without the previous
               written consent of NXT.

      20.2     NXT  may  assign  the  benefit  and  burden  of  the  Agreement
               together with its rights in and to the IPRs.


21    Invalidity

      If  any  provision  of  the  Agreement  is  determined  to be  illegal  or
      unenforceable  by any court of law or any competent  governmental or other
      authority,  the remaining provisions shall be severable and enforceable in
      accordance with their terms so long as the Agreement without such terms or
      provisions  does not fail in its  essential  purpose.  The  parties  shall
      negotiate  in good faith to  replace  any such  illegal  or  unenforceable
      provisions with suitable substitute  provisions which will maintain as far
      as possible the purposes and the effect of the Agreement.

22    Force Majeure

22.1  If either party is prevented or delayed in the  performance  of any of its
      obligations  under the  Agreement by force majeure and if such party gives
      written  notice  thereof  to  the  other  party   specifying  the  matters
      constituting  force  majeure  together with such evidence as it reasonably
      can give and  specifying  the period for which it is  estimated  that such
      prevention or delay will continue,  then the party so prevented or delayed
      shall be excused the  performance or the punctual  performance as the case
      may be as from  the  date  of such  notice  for so long as such  cause  of
      prevention or delay shall continue.

22.2  For the purpose of the Agreement, the term "force majeure" shall be deemed
      to include any cause  affecting the  performance of the Agreement  arising
      from  or  attributable  to  acts,  events,  non-happenings,  omissions  or
      accidents  any of which are  beyond  the  reasonable  control of the party
      obliged to perform.


23    Modification

      No  modification,  waiver,  alteration or amendment to or of the Agreement
      shall be valid  unless set out in writing and  executed by or on behalf of
      NXT and the Licensee.

24    Waiver

      Any failure by either party at any time or from time to time to enforce or
      require the other  party  strictly to observe and perform any of the terms
      and  conditions  of the  Agreement  shall not  constitute a waiver of such
      terms or  conditions or in any way affect the right of either party at any
      time to avail itself of such  remedies as it may have under the  Agreement
      or otherwise for any breach or breaches of such terms and conditions.

25    Entire agreement

      The Agreement and the New Cross Licence constitute the entire agreement of
      the parties as to its subject  matter and supersedes and cancels all prior
      agreements, understandings and negotiations in connection with it. Each of
      the parties confirms and acknowledges that it has not agreed to enter into
      the Agreement in reliance upon any statements or representations  (whether
      of  fact or  otherwise)  made by the  other  which  are not set out in the
      Agreement.

26    Relationship

      Nothing in the  Agreement  shall  constitute  or be deemed to constitute a
      partnership  between  the  parties  or  constitute  NXT as  agent  for the
      Licensee or vice versa for any  purpose  and neither  party shall have the
      right or authority to and shall not do any act,  enter into any  contract,
      make any representation,  give any warranty,  incur any liability,  assume
      any obligation,  whether express or implied,  of any kind on behalf of the
      other or binding to the other in any way.

27    Notices

27.1  Any notice given under the  Agreement  shall be given in writing and shall
      be served by sending the same by pre-paid  first class post (or by airmail
      if being served outside the United  Kingdom) or facsimile or by delivering
      the same by hand to the  address of the party set out above (or such other
      address as either party has specified by notice to the other).

27.2  Any notice served in accordance  with  sub-clause  27.1 shall be deemed to
      have been served when  delivered by hand at the time of such  delivery and
      when sent through the post five  calendar  days after the date of despatch
      and when sent by  facsimile  on the date of  transmission.  In the case of
      service  by  facsimile  a  confirmatory  copy of the same shall be sent by
      pre-paid  first  class  post (or by airmail if being  served  outside  the
      United  Kingdom)  on the same day as  transmission  otherwise  such notice
      shall be invalid.

28    Dispute resolution

28.1  The  parties  shall meet as soon as  possible to discuss and to attempt to
      resolve all matters not  specifically  provided for in the  Agreement  and
      which  require  a  decision   including  all   differences,   disputes  or
      disagreements  which may arise out of or in connection with the Agreement.
      If the parties  are unable to resolve  any such matter or dispute  then it
      shall be referred to the Chairman of NXT and the  Chairman (or  equivalent
      officer)  of the  Licensee,  who  shall  meet  within  five  days of being
      requested  to do so and shall in good faith  attempt to resolve the matter
      or dispute.

28.2  The parties  agree to refer any matter or dispute  which is not able to be
      resolved pursuant to sub-clause 28.1 to the Centre for Dispute  Resolution
      ("CEDR") in London, England in an attempt to settle the same in good faith
      by Alternative Dispute Resolution ("ADR").

28.3  Neither  party shall be deemed to be  precluded  from taking such  interim
      formal  steps as may be  considered  necessary  to  protect  such  party's
      position while the procedures referred to in sub-clauses 28.1 and 28.2 are
      being pursued.

28.4  In the event  that the matter  remains  unresolved  by such ADR  procedure
      within thirty days of the commencement of such procedure, then the parties
      shall be at liberty to take such other  Proceedings  (as defined below) as
      they think fit.

29    Governing law and jurisdiction

29.1  The  Agreement  shall be  governed by and  construed  in  accordance  with
      English law.

29.2  Except as provided for in sub-clauses  28.1,  28.2 and 28.3 in relation to
      any legal action or  proceedings  to enforce the Agreement  (including the
      licence  granted  therein)  or arising  out of or in  connection  with the
      Agreement  ("Proceedings"),   the  Licensee  irrevocably  submits  to  the
      exclusive  jurisdiction  of the English Courts and waives any objection to
      Proceedings  in such Courts on the grounds of venue or on the grounds that
      Proceedings have been brought in an inappropriate  forum.  This sub-clause
      operates  for the  benefit  of NXT which  shall  retain  the right to take
      Proceedings in any other jurisdiction.






   SCHEDULE 1

   Marks

"NXT"    Electronic and electrical  apparatus and  instruments;  loudspeakers;
         loudspeaker drive units; public address
Class 9  systems;  display panels for  advertising,  information and publicity
         purposes,  with  integrated  or  incorporated  loudspeakers;  display
         apparatus,   having  electrical  or  electronic   components;   sound
         reproduction   apparatus;   sound  generation   apparatus;   acoustic
         apparatus for  reproducing  sound;  loudspeakers  integral to ceiling
         tiles;   loudspeakers   incorporated   into  ceiling   tiles;   sound
         reverberation units; noise cancellation apparatus;  noise suppression
         apparatus;  audio  and video  recording  and  reproducing  equipment;
         amplifiers,   tuners,  turntables,  compact  disc  players,  cassette
         players,  microphones,  headphones;  digital to analogue  converters;
         magnetic and optical  media for or bearing sound  recordings;  cables
         and  connectors;  televisions  and video  recorders;  control  units;
         computers;  computer peripheral  devices;  parts and fittings for all
         the aforesaid goods.

Country               Application no.    Date
European Union*                           11.07.1996

Australia             712934              17.07.1996

Canada                817786              12.07.1996

China                 960091234           08.08.1996

Hong Kong             8610/96             16.07.1996

Japan                                     13.08.1996

Korea (South)                             02.08.1996

Korea (North)                             16.07.1996

Malaysia              96/10150            28.08.1996

Mexico                268964              22.07.1996

New Zealand           264569              15.07.1996

Singapore             8587/1996           16.08.1996

Taiwan                85035652            18.07.1996

United Kingdom        2107906             17.08.1996

United States of America                  17.08.1996

*   Austria, Belgium, Denmark, Finland, France, Germany, Greece, Netherlands,
    Ireland, Italy, Luxembourg, Portugal, Spain, Sweden, United Kingdom.





                                   SCHEDULE 2

The  rights  granted to the  Licensee  in  relation  to the "Field of Use" shall
exclude  any rights in relation  to the  following  fields of use for flat panel
transducer and audio speaker products which rights are governed by the New Cross
License:

      (A)   Aircraft including, but not limited to, all civil and military fixed
            and rotary wing  aircraft of any nature and any other craft  capable
            of sustained flight.

      (B)   Headsets, headphones,  earplugs, earbuds, earmuffs, and all forms of
            "on the ear"  and "in the ear"  sound  generating  devices  (for the
            avoidance  of doubt,  this field  shall not  include  communications
            handsets   such  as   telephones,   cellular   telephones,   speaker
            telephones,  telephone conferencing,  two-way radios, mobile radios,
            ham radios, CB radios, public telephones,  wireless telephones,  SMR
            telephones, answering machines, pagers).

      (C)   Hearing aids, hearing assistance devices and other devices to assist
            impaired hearing.

      (D)   All  devices  and  systems  where  the  sole  purpose  is  reducing,
            isolating, controlling or attenuating noise or vibration.






                                   SCHEDULE 3

To [name of Licensee]
                                                                          [date]
     [address]

Dear Sirs

NXT Licence

We refer to the agreement  between ourselves dated [date] ("the  Agreement"),  a
copy of which is enclosed for reference.

You have requested that the benefit of the Agreement be extended to [name of the
Licensee's Associated Company] (the "Company") under the terms of sub-clause 3.3
of the Agreement. We agree to this request in consideration for the following:

1.  payment  by the  Company of US$1  (receipt  and  sufficiency  of which are
    hereby acknowledged);

2.  a joint and several  warranty from you and the Company that the Company is
    an Associated Company;

3.  agreement  by the  Company to perform and be bound by all the terms of the
    Agreement  as from the  Effective  Date (as defined  below) other than the
    obligation to pay the Initial and Annual Licensing Fees; and

4.  acknowledgement  by the Company that the rights  granted to the Company by
    this letter may be  terminated  under the terms of the  Agreement  or upon
    the Company ceasing to be an Associated Company.

The term "Effective Date" means the date when NXT is in receipt of a signed copy
of this letter duly executed by you and the Company.

Unless defined  differently in this letter,  defined words and expressions shall
have the meanings given in the Agreement.

The law which  governs this letter and the Courts which shall have  jurisdiction
over any matter arising out of this letter shall be as described in clause 29 of
the Agreement.






Please indicate your acceptance and agreement to these terms by signing,  dating
and returning  the enclosed  copy of this letter.  A copy of this letter is also
being sent to the Company,  and  signature of that copy by the Company  shall be
evidence of the Company's acceptance and agreement to these terms.



Yours faithfully              We, [name of the  Licensee],  hereby confirm and
                              accept the terms of this letter


For and on behalf of
New Transducers Limited



                              We, [name of the  Company],  hereby  confirm and
accept
                              the terms of this letter

                              ---------------------------