Holographic imaging


Hi folks, is the so called holographic imaging with many tube amplifiers an artifact? With solid state one only hears "holographic imaging" if that is in the recording, but with many tube amps you can hear it all the time. So solid state fails in this department? Or are those tube amps not telling the truth?

Chris
dazzdax

Showing 1 response by ngjockey

Are we talking about time induced distortion (TID)?

Last time I heard about TID was in the manual for the Mission 777 amp of the 80's. That designer attacked the problem with an abundant power supply, local feedback instead of global, very wide open bandwidth and a slew rate that has only been bettered since in OTL and possibly some switching amps. Possibly, the best manual ever. Wish I made a copy.

That amp was ahead of it's time and incredibly dynamic but didn't come near the detail of modern amps, probably due to the evolution of parts.

http://www.fl-electronic.de/neuklang/cyrushistory.html

It also reminds me of the difference between redbook CD vs SACD and DVD-A. There are time issues there that are not directly related to jitter or sampling rates.

Anyway, despite the inevitable obtuse answers, there is room for an open mind.