In 1979 Lo-D (brand name used by Hitachi on Japanese market) introduced a series of mini Hi-Fi components named Jewel. The model presented here was sold on the Japanese market as Lo-D Jewel Jr. while the same component was sold worldwide (slightly upgraded) as Hitachi ACT-M2. The basic system consisted of the HSR-M1 (15W/ch tuner-amplifier), D-M1 cassette deck (30-15000 Hz FeCr tape) and HS-M1 (2-way speaker system, 12cm woofer, 5cm tweeter). These components can be operated from mains or a 12V car battery. Various placement of the components was possible, either as standalone components or on dedicated racks such as the LA-M1 or the LA-M1P. For transportation, the LA-M1C(B) suitcase was available in both sillver and black finish, with or without storage compartiment. For a complete mini home Hi-Fi system, a series of additional components were available. These were the HT-10FM (FM "wireless"!!! turntable), HT-6M (turntable for the Hitachi version), C13-300 TV set, TTM-M1 TV tuner, ET-250 timer unit and various microphones and headphones.
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