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Pioneer SX-525

AM/FM Stereo Receiver (1972-74)

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Pioneer SX-525


The Pioneer SX-525 is a medium-powered, low-priced AM/FM solid state stereo receiver with advanced circuitry and sensitive tuner section.

Stereo on a budget can have a lot of the power and a lot of the frills of very expensive stereo, as this superlative new AM/FM receiver from Pioneer so amply proves.

Offering the music listener up to 72 watts of music power, sensitive FM tuner reception, highly advanced circuitry and a full choice of program sources, the SX-525 offers more important extras than many receivers priced much, much higher.

It features finely balanced, dynamic stereo sound - and gives you more power than you'll ever really need to fill a large room with music.

Moreover, it is Pioneer-built and Pioneer-guaranteed, and in stereo that says just about everything.


Tuning range: FM, MW

Power output: 13 watts per channel into 8Ω (stereo)

Frequency response: 15Hz to 30kHz

Total harmonic distortion: 1%

Damping factor: 40

Input sensitivity: 6mV (mic), 2.7mV (MM), 200mV (DIN), 200mV (line)

Signal to noise ratio: 75dB (MM), 85dB (line)

Output: 200mV (line), 30mV (DIN)

Speaker load impedance: 4Ω to 16Ω

Semiconductors: 1 x FET, 2 x IC, 33 x transistors, 29 x diodes

Dimensions: 450 x 145 x 360mm

Weight: 8kg

Accessories: FM T-type antenna


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Reviewed Feb 16th, 2014 by mozartmind

This was my first real receiver purchased Fall 1972 and have found a mint condition. The irony is that it sounded better than any I had since. I do not believe the new equipment can replicate the reality of the music as it was meant to be heard than this series of Pioneer receivers.




Used this sx-525 since 1983 like a tuner and power amplifier for any devices.I get the nice soft "tube" sound and extrimly safe equipment!!!!Thanks to Pioneer's designers!!!!
Many thanks to "hifiengine" for the manual !Good luck !

This website is not affiliated with or sponsored by Pioneer. To purchase SX-525 spares or accessories, please contact the company via their website or visit an authorised retailer.