About Marshall Choong
Modern loudspeaker design concerns
finding the best compromise of a complex mixture of technologies, limited
ultimately by the physics of acoustics and finally assessed by the often little
understood, but amazing, properties of our hearing.
We strive to justify by measurement, any and all decisions made during the
design process. However many areas such as image quality, listener envelopment
and other room related issues are still difficult to quantify and relate back
to speaker design.
This has led to an interest in alternative multichannel record and playback methods, in
particular the work of Michael Gerzon, Ambisonics,.
An examination of the detailed performance of drivers, in terms of complex
intermodulation products, has enabled us to correlate the result with listening
performance to a surprisingly high degree.
The performance of loudspeakers in typical room environments is also an area of
special interest to us. All techniques to improve the difficulties of the
reproduction of bass frequencies in rooms have been investigated. The final
outcome is in agreement with the perceived wisdom of the audiophile community.
In systems of the highest quality, almost all 'solutions' to room modes fail,
are not practicable, or are far too expensive. Loudspeakers are invariably in
the wrong room position for the minimum excitation of room modes, and if they
have extended bass, this leads to inaccurate and unacceptable bass level
response and poor bass dynamics. next>>
