As to loudspeakers, everything worth inventing has been invented. Mr. V. Nosov disagrees.

A clever tube amp in the footsteps of Mr Köykkä.

Imagine a fly circles the head of the listener during the original recording. The same fly circles the head of the listener of that recording in exactly the same way, when the recording is played back through the two loudspeakers of a BACCH 3D Sound system, while surround sound reproduces the fly incorrectly near the speakers.

To calculate a Fourier transform, all you have to do is listen.

It is worrying that, against all odds, audio amplifiers of all kinds, try to drive the loudspeaker with the voltage instead of current, claims Finnish electronics engineer Esa Meriläinen in his recent book Current Driving of Loudspeakers.

Some people like to write, some other to do more concrete things with their hands. Transcendent Sound’s Bruce Rozenblit, the founder of likes both.

Inner-Magazines has numerous previously published and unpublished articles in its archives, and all those will be added to these pages according to schedule.