From time to time we have created some special designs for specific customers or simply as experiments to try out an idea.

Spike Jones

Spike Jones was a small bass-reflex speaker produced for a specific customer to be used as Christmas gifts.


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Vivaldi is a traditional TQWT speaker that works well with Alpair7, CHN-70, and Chr-70 from Markaudio. The cabinet is made out of composite chipboard with a black finish.


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Lizt is a small bass-reflex design, that produces a special spread of sound due to the spherical cabinet. It will usually need to have a subwoofer to support the full frequency range.


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