Yamaha - M-35 Solid state amplifier

Specifications

Main specifications:

Power:
2 × 40W @ 8Ω
or 4 × 20W @ 8Ω
Dynamic power:
up to 2 × 70W
Frequency response:
10Hz–50kHz
THD:
as low as 0.008%
Weight:
5 kg
Years:
approximately 1986–1988
Made in:
Japan

It was often paired with:

Yamaha DSP-1
Yamaha CX series preamps
Yamaha AV systems
Sound quality

The M-35 is generally considered:

clean
neutral
detailed
reliable

Typical Yamaha “Natural Sound” character:

not overly warm
not aggressive
very controlled mids/highs

It is not a powerhouse amplifier, but it performs well with:

efficient bookshelf speakers
surround/presence channels
smaller stereo systems