SANSUI BA-60
¥ 19,900 (released in July 1968)
Commentary
A compact all-silicon transistor power amplifier developed in pursuit of sound transparency.
In addition to data, repeated listening tests are conducted to reduce the expansion of low-frequency sound and distortion at low output.
SEPPP OTL-ITL circuit -ITL circuit using silicon transistors, and low distortion is achieved by using a large amount of NFs.
A circuit breaker is used for the protective circuit of the power transistor.
Equipped with left and right independent phase changeover switches.
Equipped with an oral / null balance switch to adjust the left / right balance.
When you test the switch, the left and right speakers are connected in series and sound is lost when balanced properly.
Equipped with left and right independent volume, each can be independently adjusted.
It has an input level adjuster that can be used with any preamp.
Model Rating
| Type | Stereo power amplifier |
| Effective power | 25W/25W ± 1 db (4 Ω) 20W/20W ± 1 dB (8 Ω) |
| Music Power (IHF) | 60W ± 1 dB (4 Ω) 50W ± 1 dB (8 Ω) |
| Harmonic distortion factor | 0.3% or Less (at Rated Output) |
| Intermodulation distortion factor (60 hz : 7 khz = 4 : 1) | 0.3% or less |
| Power Band Wiz (IHF) | 20 Hz ~ 40 kHz (8 Ω) |
| Frequency Characteristics (Normal Output) | 20 Hz ~ 60 kHz ± 1 dB (8 Ω) |
| Input Sensitivity (1 kHz, Effective Output) | 0.7 V ± 3 dB |
| Input impedance | 50k Ω or more |
| Load impedance | 4 Ω ~ 16 Ω |
| Damping factor | 46 (8 Ω) |
| Hum and noise (IHF) | 80 dB or more |
| Channel separation | 50 dB or more |
| Power supply voltage | AC100V/117V/220V/240V, 50Hz/60Hz |
| Power consumption | 100VA |
| External dimensions | Width 152x Height 111x Depth 264 mm |
| Weight | 4.2kg |