SONY TA-2650
¥ 39,800 (around 1976)
Commentary
This pre-main amplifier is based on the technologies developed in the ES-II series and Sony's semiconductors.
All stages are directly connected to the power amplifier section with pure complimentary service symmetrical OCL circuit.
In addition, differential amplification by dual transistors is adopted.
It also functions as a control amplifier, such as two way tape copy function and Tape2 input / output jack.
Model Rating
| Type | Stereo pre-main amplifier |
| Effective output (both channel operation) | 1 kHz : 50W + 50W (8 Ω) 20 Hz to 20 kHz : 45W + 45W (8 Ω) |
| Dynamic Power (IHF, 8 Ω) | 150W |
| Output Band Characteristics (IHF, 8 Ω) | 10 Hz to 40 kHz |
| Harmonic distortion factor | 0.2% or Less (Effective Output) 0.15% or Less (at 1W output) |
| Intermodulation distortion factor (60 hz : 7 khz = 4 : 1) | 0.2% or Less (Effective Output) 0.15% or Less (at 1W output) |
| Damping factor (1 kHz, 8 Ω) | 25 or more |
| Phono maximum allowable input (1 kHz) | 200mV |
| Tone control | Bass : 100 Hz ± 9 dB Treble : 10 kHz ± 6.5 dB |
| Loudness control | 50Hz:+8.8dB 10kHz:+2.5dB |
| Presence control | 1kHz:+2.5dB |
| Power consumption | 120W |
| External dimensions | Width 360x Height 145x Depth 290 mm |
| Weight | 7.5kg |
| Sold Separately | Wood Case TAC-17 (¥ 4,500) |