hifi engine

Coral A-707

Bahadir Erturk's picture

Coral A-707

The solid-state Integrated Amplifier ( 1965 )

A great sound...

The first metal transistors ( Sony 2SD46 )

Effective output 70W(35W+35W)
Music power 110W(55W+55W)
Frequency response 20Hz-35kHz±1dB
Input sensitivity Player:3mV
Tape Head:1.5mV
Tuner, Aux, Tape Monitor: 400mV
Equalizer Player:RIAA curve
Tape Head:NAB curve
Tone control CR type
Bass: ±14dB (50Hz)
Treble: ±11dB (10kHz)
Loudness control 100Hz:+8dB
An attached circuit Tape recorder DIN standard connector
Headset jack
Tape monitor circuit
Power transistor guard
A high filter
A low filter
The semiconductor used Transistor: 23 pieces
Diode: Eight pieces
Thermo sensitive register: One piece
Power supply voltage AC100V/117V, 50Hz/60Hz
Power consumption 17W (at the time of a non-signal)
160W (at the time of the maximum except take-off)
Dimensions Width 380x height 135x depth of 280mm
Weight 8.6kg