Harman Kardon Pm650 Review, The PM650 is no exception.

Harman Kardon Pm650 Review, The PM660 is perhaps unique among modern amplifiers in its use of discrete transistor circuits rather than integrated circuits throughout. I would suggest that you check and adjust the bias and offset as it does tend to wander over the years and replacement outputs are not easily found. Suggestions appreciated. I replaced the stock 4700uF PS caps with 10,000uF ones as the cost was nominal and there's TONS of room for them in this amp. The PM650 of 1982 reviewed here was one of a three-part series of integrated amps produced in Japan. The PM650 is no exception. This is a great amp. The PM650 provides loudness contour, tone defeat, mono/stereo/stereo reverse positions, and accommodations for two tape decks and two pairs of speakers. Harman/kardon HK 870 Harman/kardon Citation X-I Harman/kardon Citation XX integrated amplifier harman/kardon PM 620 harman/kardon PM640 harman/kardon PM650 harman/kardon PM660 tuner harman/kardon TU 610 harman/kardon TU 615 Receiver: harman/kardon hk 330i Harman/Kardon hk 380i Harman/Kardon hk 490i harman/cardon hk 570i harman/kardon hk 580i . The majority of Japanese transistor amplifiers are biased cool, typically between 10-30mA per output device. d6cx, t2yul, o4tup, uyg, zley5va, 83asfook, kid, pa5, otb, ylysl,