Audio Database

The

Pioneer QM-80
62,000yen(1970 in-the-earlies ?)

Description
 
Four-channel power amplifier which adopted the whole page hardwired-connection complimentary OCL circuitry.

What combined the relay and the electronic circuitry is adopted as a protection network.

Four independent power meters are carried.

It is applicable also to two-channel 2 way multi-amplifier.


Rating of a mode
Form Four-channel power amplifier
Circuit system Whole page hardwired-connection semi- complimentary OCL circuitry
Music power (IHF) 200W (8ohm)
Effective output (4ch drives) 25W+25W+25W+25W (8 ohm, 0.5% or less of distortion)
THD 0.5% or less (at the time of 1kHz, 2ch drives, and a runtime output)
Frequency characteristic 5Hz - 80000Hz, ±1dB
Output bandwidth (IHF) 10Hz - 50000Hz (4ch drives, 8 ohm, 0.5% or less of distortion)
Input sensitivity/impedance 0.5V/70kohm
1V/110kohm
2V/170kohm
Dimensions Width 430x height 145x depth of 337mm
Weight 11.5kg