Legendary Amps

M-2

M-2 Features

The Yamaha stereo power amplifier M-2 developed by applying the best of Yamaha’s superior electronic technology the M-2 is a DC stereo power amplifier that achieves an extremely high level of performance. The output stage, which uses pure complimentary capital OCL and triple push-pull circuitry, produces the rated output of 240W +240W without any strain on the large-capacity power supply section.

M-2 Specifications

Production Years 1979-1980
Rated Output Power 240W +240W (8 ohms, 20Hz ∼ 30kHz 0.005% T.H.D.)
Power Band Width 10Hz ~ 100kHz (8 ohms, 120W, 0.01% T.H.D.)
Power Band Width 10H ~ 100kHz (8 ohms, 120W, 0.01% T.H.D.)
Input Sensitivity/Impedance 1.62V (240W/8 ohms)/25k ohms ± 5k ohms
Frequency Response: DC Input 8 ohms, 1W 1kHz:0dB
8 ohms/6 ohms/4 ohms/2 ohms 160W/200W/280W/390W

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M-40

M-40 Features

The M-40 incorporated the finest Yamaha amplifier technology, offering an excellent combination of high power and high purity in a top-performance audio amplification system. Auto Class A Power and Zero Distortion Rule are at the heart of the M-40, which provides a substantial 120 watts of power per channel with an amazingly low 0.003% THD into 8 ohms. The M-40 is also specially designed to deliver massive transient power output on demand, and will also drive a low-impedance load without danger of overload distortion or activation of protection shut-off circuitry. Heavy-duty speaker connection terminals and the ability to drive low impedance loads--up to three pairs of speakers simultaneously--are other features that serious audiophiles will appreciate along with the incredibly pure reproduction performance the M-40 offers.

M-40 Specs

120 Watts (8 ohms) from 20 to 20,000 Hz at no more than 0.003% Total Harmonic Distortion
145 Watts (6 ohms) from 20 to 20,000 Hz at no more than 0.007% Total Harmonic Distortion
170 Watts (4 ohms) from 20 to 20,000 Hz at no more than 0.02% Total Harmonic Distortion
Auto Class A Operating Range, 8 ohms, 10 Watts
Dynamic Power per channel (IHF) 1 khz
8 ohms/6 ohms/4 ohms/2 ohms 160W/200W/280W/390W

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M-45

M-45 Specs

Minimum RMS Output Power Per Channel
20 Hz to 20 kHz 0.003% THD, 8 ohms........125 watts
0.007% THD, 6 ohms........150 watts
0.002% THD, 4 ohms........180 watts
Auto Class A Operation Range (8 ohms)........ 10 watts
Dynamic Power per channel (IHF) 1 khz:
8 ohms/6 ohms/4 ohms/2 ohms 170W/210W/285W/390W

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M-60

M-60 Features

The M-60 is designed with the same oustanding Yamaha technology as the M-40 - Auto Class A Power and Zero Distortion Rule amplification circuitry -- offering the finest combination of high power and reproduction purity available in an audio power amplifier. The M-60, however, offers this outstanding performance with even more power, a huge 160 watts of power per channel with an amazingly low 0.003% THD into an 8 ohm load. The M-60 also provides the extra convenience of large, LED power level meters, for an accurate display of output power levels at a glance. Other features in common with the M-40 are huge power reserves, low impedance driveability, heavy-duty two way speaker connection terminals for up to three pairs of speakers, and full overload protection circuitry. For extra high-power performance, the M-60 is the idea choice for a top performance audiophile system.

M-60 Specs

160 Watts (8 ohms) from 20 to 20,000 Hz at no more than 0.003% Total Harmonic Distortion
185 Watts (6 ohms) from 20 to 20,000 Hz at no more than 0.007% Total Harmonic Distortion
210 Watts (4 ohms) from 20 to 20,000 Hz at no more than 0.02% Total Harmonic Distortion
Auto Class A Operating Range, 8 ohms, 20 Watts
Dynamic Power per channel (IHF) 1 khz
8 ohms/6 ohms/4 ohms/2 ohms 210W/260W/360W/450W

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M-65

M-65 Specs

170 Watts (8 ohms) from 20 to 20,000 Hz at no more than 0.003% Total Harmonic Distortion.
195 Watts (6 ohms) from 20 to 20,000 Hz at no more than 0.007% Total Harmonic Distortion
230 Watts (4 ohms) from 20 to 20,000 Hz at no more than 0.02% Total Harmonic Distortion
Auto Class A Operating Range, 8 ohms, 20 Watts.
Dynamic Power per channel (IHF) 1 khz:
8 ohms/6 ohms/4 ohms/2 ohms 255W/315W/380W/450W
IM Distortion Ratio (8 ohms) - 0.003%
Damping Factor (1,000 Hz, 8 ohms) - 130
Frequency Responce (20~20000 Hz) - +0,-0.3 dB
Imput Sensitivity / Impredance - 1.28V / 20 K-ohms.

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M-80

M-80 Features:

The M-80 offers massive output power with extreme reproduction purity for the discriminating audiophile who demands the highest possible performance in an audio system. The M-80 delivers 250 watts of power per channel into an 8 ohm load with a mere 0.003% THD, more than enough power for even the most demanding listening requirements. What's more, Auto Class A Power with Zero Distortion Rule amplification makes the M-80 one of the cleanest, tightest amplifiers you've ever heard. As benefitting an amp of this class, the M-80 supplies substantially high output power on sudden demand, and drives even a low-impedance 2-ohm load for full compatibility with virtually any speaker system. Wide range LED peak power level meters and full overload protection circuitry are also included. Overall, the M-80 is an outstanding accomplishment in power amplifier design, not only in technology but more importantly, in natural sound reproduction quality.

M-80 Specs

250 Watts (8 ohms) from 20 to 20,000 Hz at no more than 0.003% Total Harmonic Distortion
290 Watts (6 ohms) from 20 to 20,000 Hz at no more than 0.007% Total Harmonic Distortion
330 Watts (4 ohms) from 20 to 20,000 Hz at no more than 0.02% Total Harmonic Distortion
Auto Class A Operating Range, 8 ohms, 30 Watts
Dynamic Power per channel (IHF) 1 khz
8 ohms/6 ohms/4 ohms/2 ohms 380W/480W/640W/850W

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M-85

M-85 Features:

260 Watts (8 ohms) from 20 to 20,000 Hz at no more than 0.003% Total Harmonic Distortion
295 Watts (6 ohms) from 20 to 20,000 Hz at no more than 0.007% Total Harmonic Distortion
330 Watts (4 ohms) from 20 to 20,000 Hz at no more than 0.02% Total Harmonic Distortion
Auto Class A Operating Range, 8 ohms, 30 Watts
Dynamic Power per channel (IHF) 1 khz:
8 ohms/6 ohms/4 ohms/2 ohms 430W/510W/660W/850W

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MX-600

MX-600 Features:

Minimum RMS Output Power Per Channel
20 Hz to 20 kHz 0.003% THD, 8 ohms........135 watts
0.007% THD, 6 ohms........160 watts
0.002% THD, 4 ohms........190 watts
Auto Class A Operation Range (8 ohms)........ 10 watts
Dynamic Power per channel (IHF) 1 khz:
8 ohms/6 ohms/4 ohms/2 ohms/1 ohm 220W/265W/360W/480W/500W

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MX-800

MX-800 Features:

Minimum RMS Output Power Per Channel
20 Hz to 20 kHz 0.003% THD, 8 ohms........170 watts
0.007% THD, 6 ohms........195 watts
0.002% THD, 4 ohms........230 watts
Dynamic Power per channel (IHF) 1 khz:
8 ohms/6 ohms/4 ohms/2 ohms/1 ohm 270W/330W/440W/570W/600W

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MX-830

MX-830 Features:

Minimum RMS Output Power Per Channel
20 Hz to 20 kHz 0.003% THD, 8 ohms........170 watts
0.007% THD, 6 ohms........195 watts
0.002% THD, 4 ohms........230 watts
Dynamic Power per channel (IHF) 1 khz
8 ohms/6 ohms/4 ohms/2 ohms 270W/330W/440W/570W

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MX-1000

MX-1000 Features:

Hyperbolic Conversion Amplification Circuit
Advanced Power Supply (APS) Circuitry
Three-Pair Speaker Support
LCD (Liquid Crystal Display) Power Level Meters
Overload Protection Circuitry

Hyperbolic Conversion Amplication Circuit This kind of circuitry, developed by Yamaha, eliminates the only serious drawback of previously Class A operation amplifiers. These had to switch to non-linear class AB operation above a certain load current, causing a slight deterioration in the otherwise excellent sound quality. The new Hyperbolic Conversation Amplification Circuit does away with this problem, allowing the Yamaha MX-1000 to deliver superior performance constantly, without switching or cut-off, over its entire power range.

Advanced Power Supply Circuitry (APS) An amplifier is only as good as its power supply - this simple truth has prompted Yamaha to develop the APS circuitry incorporated in the MX-1000. The problem with conventional power sources was their tendency to produce pronounced voltage ripples during medium to large amplitude music signals, particularly under low impedance loads, together with voltage fluctuations in the power transistors. ASP solves this problem by providing an active power source that ensures stable voltage in the final transistor stage under all operating conditions, thus greatly improving power suply to the amplifier.

MX-1000 Specs

260 Watts (8 ohms) from 20 to 20,000 Hz at no more than 0.003% Total Harmonic Distortion.
295 Watts (6 ohms) from 20 to 20,000 Hz at no more than 0.007% Total Harmonic Distortion
330 Watts (4 ohms) from 20 to 20,000 Hz at no more than 0.02% Total Harmonic Distortion
Dynamic Power per channel (by IHF Dynamic Headroom measuring method)
8 ohms/6 ohms/4 ohms/2 ohms/1 ohms 450W/560W/740W/960W/1000W
DIN Standard Output Power Per Channel: 1kHz 1% THD 4 ohms, 450W.
Power Band Width: 0.03% THD 130W, 8ohms, 10Hz~60kHz.
Damping Factor: 1kHz, 8 ohms, 130.
Input Sensitivity/Impedance:MAIN IN, 1.62v/60 kOhms
Frequency Response (20Hz~20kHz), +0, -0.2dB
Total Harmohic Distortions (20Hz~20kHz), MAIN IN to Sp Out, 130W/8 ohms, 0.003%.
Intermodulation Distortion: Rated Output/8 ohms, 0.003%