Yamaha MX-1

Yamaha MX-2

1 9 9 2 1992
1 9 9 7 1997

Yamaha's last 2-Channel amplifiers and part of the ToP-ART series :
Total Purity Audio Reproduction Technology.

This far flung acronym doesn't mean Yamaha's previous amplifiers were crap but the early 1990s called for more marketing, hoping to maintain sales in what had become a gradually dwindling market...

Build-quality isn't equivalent to a B-2x, sure, but still rather healthy : fully Dual-Mono with 2x 33,000µF and 2x 35,000µF caps, 2x 335VA transformers, Class A stages, HCA output stages, a base made of two 1,6mm steel plates sandwiched around a damping material, select componentry and gold-plated bus bars and terminals.
The damping factor is huge as well : 350 between 20Hz and 20Khz !
The result is "Power ohne Ende", although not as distinguished as, say, a B-2.

The smaller MX-2 is basically the same amplifier with less available power and no damping between the two base plates ; the MX-2 was export only.

Yamaha MX-1, image 1 Yamaha MX-1, image 2 Yamaha MX-1, image 3
Yamaha MX-1 specifications
Title Value
Power (DIN) : 2x 300W (4 Ohm, 1Khz, 0,5% THD) {MX-2 : 2x 210W}
20Hz...20Khz Power : 2x 200W (8 Ohm, 0,008%THD) {MX-2 : 2x 150W}
2x 260W (4 Ohm, 0,03%THD) {MX-2 : 2x 190W}
2x 320W (2 Ohm, 0,09%THD) {MX-2 : 2x 230W}
Power bandwidth : 10Hz...60Khz (8 Ohm, 0,03% THD, 100W)
Damping factor : 350 (SPA, 8 Ohm, 20Hz...20Khz)
250 (8 Ohm, 1Khz)
Inputs : 1,46V / 20kOhm
Frequency response : +0,5dB between 20Hz...20Khz
S/N ratio : 125dB (IHF-A)
Residual noise : 20µV
1Khz stereo separation : 80dB (-30dB VOL, 5,1kOhm input)
10Khz stereo separation : 60dB (-30dB VOL, 5,1kOhm input)
PC : 450W max.
Dimensions : 43,8 x 11,6 x 48,6cm
Weight : 24kg.
List price : 100,000¥
page online since : january 2007
page updated : not yet
page type : LGT / KNB
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