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Pioneer SX-727

AM/FM Stereo Receiver (1972-74)

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Pioneer SX-727


The SX-727 is a sensitive AM/FM stereo receiver with up to 195 watts of power into 4 ohms, two tape monitor circuits, linear FM dial scale and supreme versatility.

Upper range power output, unusual FM selectivity and sensitivity and the versatility of units costing much, much more - the SX-727 stereo receiver from Pioneer puts together all of these hi-fi virtues and offers the music enthusiast a new high in stereo value.

Versatility is the keynote of this attractively-designed unit - the SX-727 handles up to two tape decks, two turntables, three pairs of speaker systems and a microphone.

Its sensitive FM section is loaded with the very latest of solid state circuitry - the better to offer distortion-free reception.

Its direct-coupled power amplifier circuitry means a wide power bandwidth and superb frequency response.

And the unit puts out up to 195 watts of music power (at 4 ohms), more than enough to fill a large room with great sound.


Tuning range: FM, MW

Power output: 37 watts per channel into 8Ω (stereo)

Frequency response: 7Hz to 80kHz

Total harmonic distortion: 0.5%

Damping factor: 40

Input sensitivity: 2.7mV (mic), 3mV (MM), 200mV (DIN), 200mV (line)

Signal to noise ratio: 85dB (MM), 95dB (line)

Output: 200mV (line), 35mV (DIN)

Speaker load impedance: 4Ω to 16Ω

Semiconductors: 4 x FET, 4 x IC, 55 x transistors, 34 x diodes

Dimensions: 485 x 150 x 390mm

Weight: 14kg

Accessories: FM T-type antenna

Year: 1972


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Reviewed Aug 05th, 2018 by Bob barcus

I have owned a SX727 since 1974 they run great if to take care of it... keep it clean of dust and let air get to the vents You my need to get filter capacitors changed every 15-20 yrs or a light may burn out.you can still get parts for them...Thanks HiFi Engine for the manuals I lost mine 40 yrs ago

Reviewed Jan 15th, 2015 by bibfeldt

My father recently gave me one of these. I love the look, everything lights up and seems in working order. I hooked it up to a set of speakers I know work well and the sound that comes out at full volume (at theoretically 20db) is almost imperceptible. Any ideas on what might be the problem?

Reviewed Sep 25th, 2014 by J_R_S

A sweet-sounding integrated receiver loaded with flexibility and options. The specs are top notch and if 37 real watts into 8 ohms per channel isn't enough for you, try getting more efficient speakers. Worth doing a full restoration on. The only slight negative: it uses those funny proprietary plugs Pioneer fooled around with for a few years to hook the speakers into the back of the unit -- but you can't have everything and it's easy to hack one of those plugs together out of an extension cord replacement plug that has screws to open the shell. Even today, the FM Stereo reception from the tuner is outstanding.

Reviewed Dec 30th, 2013 by gertvwee

This pioneer receiver is a very good sounding receiver. Very sensitive FM reception.
Beautiful look

Reviewed Feb 17th, 2013 by tdelpozz

Works as well as the day I first purchased it in 1973 or so. Excellent versatility and sound.



re: SX-727 stereo mode not working

Hi. I have a sx-727 on good shape, but lately, after i move it, the stereo mode us only working on the left speaker. When I put it in mono tho, it works... Any ideas what's up?
Thank you.

re: SX-727

Thanks a million for posting the manuals & brochures. I just got one and the manual was a huge help.

Relay circuit

I have an old inherited sx that has been working fine till now. The relay trips when i increase the volume to certain level. Nd it doesnt work even if i switch it off and on again. Please help.


I have the same issue and even if I connect headphones or have the speakers off. Did you ever get an answer?? Thanks


My sx-727 started acting up all the sudden. I have no sound on any settings or any speaker jacks. All I get is a very loud buzzing sound coming through the speakers. The volume control doesn't work on the buzzing either. Can anyone please help?!?!?

Thank-you for posting the manuals or other material.

I recently purchased a decent SX-727 w/ a pair of Akai SW-170A speakers. The ensemble sounds awesome, considering their age. :-) The receiver has a little static/scratchiness in the volume control---but I think I will be able to clean that out shortly. I have been having some difficulty finding a manual for the Akai's . Perhaps others here have knowledge/experience with this speaker?

sx 727

Thanks for posting the service manual. I had a little dust in the volume control and just needed to blow it out. An excellent tuner that will outlive me.

This website is not affiliated with or sponsored by Pioneer. To purchase SX-727 spares or accessories, please contact the company via their website or visit an authorised retailer.