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Elite M-90 Reference Stereo Power
Amplifier

Pioneer introduced the M-90 Reference Power Amplifier
in 1987, to be used in conjunction with the C-90 Reference Control
Amplifier. In the January 1987 issue of Stereo Review that ran the
"Not Evolutionary-Revolutionary" advertisement, here is what
Pioneer said about the M-90:
"The M-90 is a superb high-power stereo
amplifier, utilizing dual-mono construction. It is conservatively
rated at 200 W/CH into 8 ohms and delivers 800 W/CH of dynamic power at 2
ohms. The wide dynamic range of the digital sources can now be
reproduced effortlessly, with any loudspeakers. The M-90's high
current capacity of 47 amps can handle the challenge of the most complex
speaker loads. To further enhance S/N ratio and channel separation,
relay-operated electronic switches and a long shaft volume control keep
the length of signal paths down to a minimum. Why include a high
quality volume control on a power amp? To pursue the straight
wire-with-gain philosophy when using a CD player connected directly.
Pure sound, redefined."
The M-90 was virtually distortion-free, having only 0.003% THD from 20-20K
Hz @ 8 ohms, and had a S/N ratio of 125 dB! (See the complete
specifications at bottom of page.) The M.S.R.P. for the M-90 was $950.00.
It was superseded by the M-91 in 1989.


M-90 Specifications
Click on thumbnail image to enlarge
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