In 1979 the huge ML-3, 200 watt/channel dual monaural amplifier is released. Latest models from 1987.
1981 - 1988, ML-9, looks like a smaller ML-3, 100 watt/channel.
The last amplifier of the serie is the small ML-11, 1982 - 1989, 50 watt/channel. The preamplifier ML-12 or ML-12A takes it power from the amplifier.