Pioneer SX 300 (1971-1972)
Specifications
| Feature | Specification |
| Year of Production | 1973-1976 |
| Power Specifications | approximately 12W per channel (8Ω), stereo |
| Impedance | 4-16Ω |
| Sensitivity | Unknown |
| Key Features | AM/FM tuner, phono input, tape monitor, bass and treble controls, reportedly includes a headphone jack, cabinet with wood veneer finish |
Historical Significance
Pioneer reportedly launched the SX-300 in the early 1970s. It wasn't aimed at audiophiles. It was a budget receiver for the living room. It was reportedly part of Pioneer's silver-face lineup, and it put real stereo fidelity within reach of ordinary buyers. It packed a tuner, preamp and power amp into a compact walnut-clad chassis that looked far more expensive than it was.
Sound Signature
Don't expect big volume. The SX-300 makes 12 watts per channel, and the sound is warm and rounded, strong in the midrange and gently rolled off at the extremes. It suits vinyl in smaller spaces. It won't drive demanding speakers to their limits, but it handles efficient bookshelf pairs well and is surprisingly clear for an entry-level unit of its era.
Maintenance and Restoration Tips
After fifty years, wear is inevitable. A crackle from the volume knob is likely dried-out potentiometer lubrication, and cleaning or replacement fixes it. The tiny bulb in the tuning dial often fails, but replacements are still available. Electrolytic capacitors degrade over time and should be checked or swapped to prevent hum or distortion. Transistor failures are rare, but they happen, especially if the unit was stored poorly or powered on after decades of dormancy. A full recap and service brings it back to reliable working order.
Collectibility and Market Value
- Market Value: approximately $75-$150 depending on condition
- Collectibility Rating: 4/10
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Related Models
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- Kenwood KR 3200 (1973-1975)
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