Audio Database


Lo-D HA-400
49,000yen(around the 1974 time)

The Integrated Amplifier which attained low distortion and low noise-ization by using the silicon transistor only for Hi-Fi which leaned the semiconductor technology of the Hitachi.

Mic mixing is possible.

Rating of a mode
Form Integrated Amplifier
Effective output (both channel drive) 17W+17W (8ohms)
Music hour (IHF) 40W (8ohms)
Distortion 1% (at the time of an effective output)
0.08% (at the time of 10W output)
Dumping factor 40 (at the time of 1kHz and an 8-ohm load intensity)
Input sensitivity/impedance Phono1 Low: 2.5mV / 50kohm
Phono1 High: 6mV / 50kohm
Aux, Tuner:170mV/100kohm
Tape1, 2:145mV/100kohm
Sound-recording output sensitivity Rec out:145mV
Din out:30mV
SN ratio Phono:65dB
Aux, Tuner: 70dB
Tone control Bass: ±10dB (100Hz)
Treble: ±10dB (10kHz)
Filter -6dB(10kHz)12dB/oct
Attachment Loudspeaker switching
Two AC outlets
Two tape-decks interconnection possible (dubbing is possible)
The semiconductor used Transistor: 26 pieces
Diode: 11 pieces
Dimensions Width 418x height 137x depth of 316mm
Weight 7kg