Audio Database

The

Pioneer SM-100
88,800yen(March, 1968 release)

Description
@
High-class stereo power amplifier which realized the outstanding frequency characteristic.

The SEPP-OTL scheme which made the series interconnection of the silicon power transistor is adopted as circuitry.
Moreover, a three-step coordination of a dumping factor is possible.

NF type filter which can cut super-bass is carried.

Input level can switch in three steps.

FET is adopted as a protection network and it has become a pure electronic formula which does not included machine part.


Rating of a mode
Form Stereo power amplifier
Circuit system Semi- complimentary SEPP circuit
Music power (IHF) 210W (4ohm)
203W (8ohm)
Effective output (both channel drive) 90W+90W (4ohm)
85W+85W (8ohm)
THD 0.05% (at the time of a runtime output)
Frequency characteristic 5Hz-100kHz}1dB
Output bandwidth (IHF) 10Hz - 30kHz
SN ratio 110dB or more
An input terminal and a gain Input: 1V, 2V, 5V
Output-terminal A-B: 4ohm-16ohm
Dumping factor 3, 14, 100 (4ohm)
1.5, 7, 50 (8ohm)
The semiconductor used Transistor: 32 pieces
Diode: 15 pieces
Supply voltage AC100V, 50Hz/60Hz
Maximum electric power consumption 296W
Dimensions Width 420x height 170x depth of 296mm
Weight 14kg