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Hitachi HA-7700

Stereo Integrated Amplifier (1979-81)

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Hitachi HA-7700


Power output: 65 watts per channel into 8Ω (stereo)

Frequency response: 10Hz to 100kHz

Total harmonic distortion: 0.02%

Damping factor: 60

Input sensitivity: 0.25mV (MC), 2.5mV (MM), 150mV (DIN), 150mV (line)

Signal to noise ratio: 68dB (MC), 86dB (MM), 100dB (line)

Channel separation: 75dB (line)

Output: 150mV (line), 50mV (DIN), 1V (Pre out)

Speaker load impedance: 4Ω to 16Ω

Dimensions: 435 x 164.5 x 383mm

Weight: 16kg

Year: 1979


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Reviewed Feb 07th, 2017 by Razor1

My brother had the Hitachi HA 7700 for a number of years in the 80s until it finally stopped working. I was so impressed with this heavy amp that I bought one about 5 years ago. It has worked everyday without missing a beat.

Reviewed Apr 07th, 2016 by Lyngbo

Have had this Hitachi HA-7700 for many years. 25 years
It has really been at work and yet it keeps on sounding good
It is connected to Dynaudio ORCHESTRA for now and can take control of the pair They require muscles and get it! Probably because of the large transformer and corresponding capacitors I've had several exciting amplifiers but it is this HA 7700 coming back every time. So I think I keep it, I hope at least 25 more years



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