Pioneer SA-7500
A 2-channel integrated stereo amplifier from Pioneer’s 1970s high-fidelity lineup.
Overview
The Pioneer SA-7500 is a 2-channel integrated stereo amplifier manufactured by Pioneer during the mid-1970s. it was designed for high-fidelity audio systems and features inputs for two turntables, a tuner, an auxiliary source, and two tape loops. The unit is noted for its robust build quality, brushed aluminum faceplate, and reliable silicon power transistors used throughout the amplifier stages.
Specifications
| Product type | 2-channel integrated stereo amplifier |
| Total harmonic distortion | Less than 0.3% |
| Damping factor | 25 |
| Signal to noise ratio | 65dB (mic), 70dB (MM), 90dB (line) |
| Intermodulation distortion | Less than 0.3% |
| Output impedance | 8 ohms |
| Dimensions (WxHxD) | 420 x 150 x 345 mm |
| Weight | 12kg |
| Power consumption | 375 W (max) |
| Inputs | inputs for two turntables, a tuner, auxiliary source and two tape loops |
Design
Inside the Pioneer SA-7500 lie highly reliable silicon power transistors. Together with the differential first stage, all stages are configured for DC amplification.
Market
The Pioneer SA-7500 has appeared on the used market with recent examples selling for $250.00 to $400. Some units have been reported to develop intermittent operational issues over time.
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