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Turnitup
08-29-2006, 10:23 PM
I just purchased this Amp, Pioneer M-90, and can't find much info on
it, other than it's 200wpc at 8ohms, and was well regarded in the
mid/late 80's. Thanks for any info.

10 Watt Street
08-30-2006, 06:45 AM
From the Pioneer "Not Evolutionary - Revolutionary" ad

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.

Power Output: 200w per channel at 8 Ohms with less than 0.003% THD
IM Distortion: 0.002% at continuous rated power
Frequency Response: 20-20kHz -0.1dB
Signal to noise Ratio: 125dB
Dimensions: 18"W x 17"D x 6.1"H. Weight: 50 lbs.
Produced 1986-89. Retail $1,400

Turnitup
08-30-2006, 08:08 AM
From the Pioneer "Not Evolutionary - Revolutionary" ad
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.

Power Output: 200w per channel at 8 Ohms with less than 0.003% THD
IM Distortion: 0.002% at continuous rated power
Frequency Response: 20-20kHz -0.1dB
Signal to noise Ratio: 125dB
Dimensions: 18"W x 17"D x 6.1"H. Weight: 50 lbs.
Produced 1986-89. Retail $1,400

Wow, thanks for the research, it sure sounds like it will be a good addition
to my rig. I was gonna go for the sansui G2000, but this looks good.