Hitachi Lo-D M1 or M2
This carry-compo system is from the year 1980. It was marketed under Hitachi's premium "Lo-D" brand. There were at least 2 or 3 different systems to choose from. The M1 system included the HSR-M1 amp and tuner, D-M1 tape deck, and HS-M1 speakers. The M2 system includes the HA-M2 amp, the FT-M2 tuner, the D-M2 cassette deck, and the HS-M2 speakers
Hitachi says the amplifier makes 25 watts per channel continuous RMS. The speakers are 290mm tall, and contain 12cm woofers and 5cm tweeters. Impedance is 4 ohms.