Audio Database

The

CORAL A-707
39,200 yen(around the 1965 time)

Description
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The solid-state Integrated Amplifier which uses a mesa type silicon power transistor.

Circuit composition has adopted the SEPP perfect OTL circuit system.

The power transistor is protected with all the electronic formula guards (E. P.C.).

Various filter circuits also carry the tape head direct input terminal and the headset jack at first.

Right-and-left independence is achieved and tone control is carried.


Rating of a mode
Form Stereo Integrated Amplifier
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
10kHz:+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