Audio Database


Pioneer SM-1800II
75,000yen(around the 1980 time)

Stereo power amplifier which adopted 2 power transformers.

DC amplifier stream composition is adopted.

2 power-source 2 transformer of a L/R independency is adopted, the interference between channels is reduced, and the separation property is improved.

Rating of a mode
Form Stereo power amplifier
Effective output (both channel drive, 20Hz - 20kHz) 85W+85W (8ohm)
THD (at the time of 20Hz - 20kHz, and an effective output) 0.01%
Output bandwidth (IHF, both channel drive, 8ohm) 5Hz - 70kHz (distortion 0.05%)
Frequency characteristic (at the time of 1W output) 5Hz-100kHz+0 -1 dB
Input terminal Input: 1V/50kohm
Output-terminal A-B: 4ohm-16ohm
A+B: 8ohm-16ohm
Dumping factor (20Hz - 20kHz, 8ohm) 50
SN ratio (IHF, A network, a short circuit) 120dB
Supply voltage AC100V, 50Hz/60Hz
Power consumption (Electrical Appliance and Material Control Law) 210W
Dimensions Width 480x height 143x depth of 378mm
Weight 13kg