Technics SE-9060(60A)
¥ 85,000 (around 1977)
Commentary
This is a stereo power amplifier that uses the best circuit technology to achieve the ultimate level of high performance.
We have achieved 0.27% bare characteristics at 50W output power, and further applied NF to improve the characteristics to the extent that measurement cannot be performed.
The first stage consists of a current mirror load differential-amplifier circuit with low noise and high gain, the voltage amplifier stage consists of a pure resistance load with distortion factor priority, and the output-stage consists of a 3-stage Darlington full complimentary service SEPP circuit with sufficient current amplification.
A ± 6 power supply configuration with excellent dynamic characteristics is adopted, and two power transformers are used in a left-right independent two power supply system.
Equipped with a protection circuit that also serves as a muting to prevent shock noise.
Model Rating
| Type | Stereo power amplifier |
| Effective output (both channel drive) | 70W + 70W (8 Ω, 20 Hz to 20 kHz) 72W + 72W (8 Ω, 1 khz) |
| Total harmonic distortion factor | 0.02% |
| Output Bandwidth (Both channel drive, 8 Ω) | 5 hz to 50 khz -3dB |
| Frequency characteristic | 3 Hz ~ 150 kHz + 0 -3dB 20 Hz ~ 20 kHz + 0 -0.1 dB |
| Signal-to-noise ratio (IHF-A) | 115B |
| Residual noise | 0.2mV |
| Damping factor | 70 (8 Ω) |
| Input Sensitivity / Impedance | 1V/47k Ω |
| Load impedance | Main or Remote : 4 Ω ~ 16 Ω Main + Remote : 8 Ω ~ 16 Ω |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 168W |
| External dimensions | Width 450x Height 92x Depth 380 mm |
| Weight | 10.6kg |