Hitachi is a Japanese multinational conglomerate company with a diverse range of products and services. It was founded in 1910 and is headquartered in Tokyo, Japan. The company operates in various sectors including electronics, construction machinery, power systems, automotive systems, and more.

Hitachi

The Hitachi HA-610 is an integrated amplifier manufactured between 1975 and 1978 in Japan. It features a silver exterior and offers a power consumption of 400 W. The amplifier measures 435 x 144 x 388 mm (WxHxD) and has a weight of 12 kg. It provides a range of input options including one tuner input, two auxiliary inputs, two tape inputs, and two phono inputs, alongside a main input. Output options include two stereo speaker outputs and two tape outputs, as well as a pre-out. The HA-610 delivers a sine power of 2 x 70 Watts at 8 Ohms and 2 x 90 Watts at 4 Ohms. It exhibits a total harmonic distortion of just 0.006% and intermodulation distortion of 0.05%. The attenuation factor is rated at 60, with a frequency response that extends from 7 Hz to 70,000 Hz for tape, auxiliary, and tuner inputs and +/-0.3dB for phono RIAA. The signal-to-noise ratio exceeds 100dB. Additional features include tone controls for both bass and treble, each adjustable by ±8 dB at specified frequencies, loudness control, high and low filters, and a mute function. The amplifier also allows for a separable pre/power stage configuration. The original price at launch was approximately 998 DM.

HA-610

by Hitachi

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