Audio Database


49,500yen(1974 release)

The Integrated Amplifier to which improvement was performed based on PMA-300Z.

The pure complimentary power transistor of U.S. Motorola, Inc., Inc. is adopted as a power amplifier final stage, and it has become a differential amplification whole page direct connection OCL circuit.

Few distorted three-step direct connection circuits are used for equalizer amplifier, and it serves as 1000mV or more of phone maximum permissible inputs with the audio frequency of 10kHz.

The Phono input is two lines which can be properly used with the sensitivity of the cartridge of a cartridge.
Moreover, Pre Out and the Main In terminal which Puri and the main can separate are carried.

Tone control is carried.

Rating of a mode
Form Integrated amplifier
<Power amplifier part>
Output power 17W+17W (8ohms)
THD 0.1% or less
Output bandwidth 20Hz - 20kHz
Frequency response 10Hz-100kHz+0 -1 dB
<Preamplifier part>
RIAA deflection 30Hz-15kHz±0.8dB
Input sensitivity/impedance Phono1:2.4mVrms/60kohm
Tuner, AUX:100mVrms/80kohm
Tape(DIN included): 500mVrms/120kohm
Phono maximum permissible input (1kHz) Phono1:240mVrms
the signal to noise ratio (IHF-A) More than Phono1:70dB
More than Phono2:77dB
Tuner, AUX, Tape: 85dB or more
An Output voltage/impedance Tape Rec: Below 100mVrms/1kohm
DIN terminal: Below 40mVrms/80kohm
Tone control Bass: ±11dB (80Hz)
Treble: ±9.5dB (12kHz)
Filter Low Filter: 100Hz, 6 dB/oct
High Filter: 7kHz, 6 dB/oct
Power supply voltage AC100V, 50Hz/60Hz
Power-source fuse 2.3A
Power receptacle Total 350W
Power-switch linkage: One line
Power-switch un-interlocking.: One line
Power consumption (Electrical Appliance and Material Control Law) 42W
Dimensions Width 376x height 140x depth of 302mm
Weight 7kg