Loudspeaker Cone Technology and Loudspeaker Design Technology


  This is the frequency response of our loudspeaker Spear. The measurement is taken in a standard living room. The low frequency reproduction starts at 25Hz and represents an extremely low value. The upper frequency goes well over the measured band of 20 000Hz.  

high end loudspeaker oceania



loudspeaker cone - polyepicell



Here you see the impuls response of our 6.5" Polyepicell woofer. This represents an excellent impuls reproduction. The frequency response shows are very smooth curve up to 3500Hz where the woofer rolls off naturally. This is the crossover frequency and eliminates the need for steep filters.



On the right the frequency response of our Polyepicell 5 inch woofer is shown. The frequency response is very flat and drops off naturally at the crossover frequency, eliminating the need for passive crossover components

   loudspeaker cone - polyepicell  


loudspeaker cone - polyepicell



On the left the frequency response of our Polyepicell tweeter is shown. The upper frequency limit is over 40 000Hz, well over the audible range.

  Frequency response of our Polyepicell tweeter      


  More technical data here >  




High End Hifi Stereo Design Loudspeakers

and High End Hifi Stereo Amplifiers

 we reserve the right to make optical or technical changes to the above modells at any time without further notice.



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KEA AUDIO introduces NEW CONE TECHNOLOGY for Stereo LOUDSPEAKERS which enhances the performance of STEREO AND DOLBY SURROUND SYSTEMS Kea Audio produces High End Hifi Stereo Speakers and High End Stereo Amplifiers with the goal to achieve the best sound reproduction.

In order to accomplish that we undertake a lot of research and develope new technology and materials. Audio Designer and Acoustic Engineer J. Lang, M.Sc. has over 20 years experience in hifi loudspeaker design and worked many years on the development of an innovative new cone material, a polymer hard foam called 'Polyepicell'. Using the same material for woofers and tweeters we achieve a very homogenous natural sound. Polyepicell has superior properties and combines qualities like stiffness and light weight. The enormous stiffness of Polyepicell reduces bending and the specially designed damping calms the feared cone breakups. The sound of this amazing loudspeaker is therefore extremely transparent and natural and the light weight of the cones allows an accurate and fast impulse response with an impact that leaves listeners astounded. The light weight causes a very high loudspeaker efficiency, which means that the electrical energy from the amplifier is transformed into a big percentage of acoustic energy of the loudspeaker, so amplifiers with little output power can drive our speakers sufficiently and at high volumes.

Since all parts are carefully selected for best performance, designed and assembled at our own premises, a perfect matching and balance can be achieved. No compromises are made and only the best is good enough. Listen to these speakers and experience the exhilarating and dynamic sound.

'KEA AUDIO' was named after the rare mountain parrot 'Kea'. The company was founded 10 years ago in Nelson City, a coastal town in the North of the South Island of New Zealand. Nelson is well known for Art and Design. Many renowned Artists and Craftspeople are involved with our products.

We use many native and unique timbers which are only found in New Zealand. All cabinets and drivers are hand assembled here in Nelson at our own premises. Our Philosophy emphasizes quality, exclusiveness and individual productions for the connoisseur who is looking for something special

This is state of the art loudspeaker design technology.

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