Pioneer SX650 - Retrotech Audio - Vintage Audio

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Pioneer SX650

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Pioneer SX-650
1970's Vintage Tuner Amp


Pioneer SX-650

1970’s Vintage Tuner Amp

With excellent built-in MM phone pre-amp, this classic 1970’s ‘Made in Japan’ receiver has had pots & switches cleaned and is in full and perfect working order. Smooth, sweet, crackle-free and with all illumination bulbs working. Picture 5 was taken while just using a length of speaker wire as an improvised aerial.

Physical condition is very good. The front fascia is absolutely perfect but some of the veneer on the side-panels is a bit scruffy (see pictures).


• Tuning range: FM, MW
• Power output: 35 watts per channel into 8Ω (stereo)
• Frequency response: 10Hz to 50kHz
• Total harmonic distortion: 0.3%
• Damping factor: 30
• Input sensitivity: 7mV (mic), 2.5mV (MM), 150mV (DIN), 150mV (line)
• Signal to noise ratio: 70dB (MM), 90dB (line)
• Output: 150mV (line), 30mV (DIN)
• Speaker load impedance: 4Ω (minimum)
• Semiconductors: 1 x FET, 9 x IC, 21 x transistors, 29 x diodes
• Dimensions: 480 x 149 x 371mm
• Weight: 13.1kg

Click here for more detailed information and reviews from the excellent website

The last two pictures are from the 1978 Hi-Fi Year Book.

This comes with a print-out copy of the original user manual.


Payment accepted via PayPal, Bank Transfer, Personal Cheque or cash on collection.

Economical worldwide shipping via UPS or FedEx – Expertly packed, tracked and insured.


Please contact us either by telephone on 01883 340073
or by sending and email to
if you are interested in purchasing this item.


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