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Hitachi HA-J2

Stereo Integrated Amplifier (1981)

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Hitachi HA-J2


Power output: 25 watts per channel into 8Ω (stereo)

Frequency response: 20Hz to 20kHz

Total harmonic distortion: 0.05%

Damping factor: 25

Input sensitivity: 0.5mV (mic), 3mV (MM), 150mV (line)

Signal to noise ratio: 80dB (line)

Channel separation: 50dB (line)

Speaker load impedance: 4Ω to 8Ω

Semiconductors: 4 x IC, 4 x transistors, 11 x LED, 1 x diodes

Dimensions: 74 x 230 x 219mm

Weight: 3.6kg

Year: 1981


service manual   English - kingmace

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Reviewed Sep 09th, 2016 by greenienet

Often overlooked as the Aiwa mini series from the same time took much of the acclaim. The 25+25w amp is powerfull enough to drive most speakers to impressive volume levels. Tuner unit must be used alongside this, preamp inputs are located there. FM/MW/LW performs pretty well. The phono MM input seems to be pretty good quality, better than many preamps supplied these days. Best it takes up bugger all space and looks very cute.



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