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Up for sale is a classic Pioneer SX-3700 AM/FM Stereo Receiver from the sought after Fluoroscan era (circa 1980 to 1981). I acquired this unit directly from SG Custom Sound, a well known specialist audio repair shop in Queens, NY back in 2021. They professionally serviced this unit and is 100% full functioning. I primarily used this with my Pioneer turntable.I've had this in storage the last 3 years, in near mint condition. Power & Audio: Fully tested and operational on both channels. Clean sound output across A and B speaker terminals.Tuner: AM and FM bands tune in clearly. The FM Quartz Lock holds stations firmly.Displays: Blue Fluoroscan power meters and digital frequency display light up brightly.Controls: Knobs, switches, and sliders are intact and function as expected.Cosmetics: Good vintage condition with expected minor surface wear or light scratches on the faceplate/case from normal age and use. (Please see all high resolution photos for exact cosmetic detail).Power Output: 45 watts RMS per channel into 8 ohms (20 Hz to 20,000 Hz)Total Harmonic Distortion (THD): 0.02% at rated outputFrequency Response: 10 Hz to 100,000 HzDamping Factor: 40Signal to Noise Ratio: 79 dB (MM Phono), 95 dB (Aux/Line)Phono Input Sensitivity: 2.5 mV (MM Moving Magnet)Tuner: AM/FM with Quartz Servo Lock (P.D.Q. digital system)Display: 5 digit blue Fluoroscan digital frequency readout with dual LED power output meters and traditional analog dial backupSpeaker Outputs: Supports 2 pairs (Speakers A and B)Dimensions: 18.9 x 5.7 x 14.3 inches (480 x 145 x 364 mm)Weight: 25.6 lbs (11.6 kg)Production Years: 1980 to 1982 (Made in Japan)Condition & ProvenanceSource: Purchased directly from SG Custom Sound, a premier audio repair and vintage hi-fi shop in Queens, NY.Power & Audio: Fully tested and operational on both channels.
The SX-3700 has a solid reputation as one of Pioneer’s more desirable late-’70s receivers, but at US$650 this listing is basically right on top of the current used-market center of gravity. With your database showing a median of US$650 and identical US$650 25th/75th percentiles, this reads as a fair asking price, not a bargain and not ambitious.
What makes it worth a look is the classic Pioneer mix of strong FM section, handsome build, and genuinely enjoyable vintage presentation—big, warm, and capable without feeling fussy. If the unit is clean, fully functional, and ideally includes original knobs/cabinet or documented service, it’s a sensible buy for someone who wants that era’s sound and styling. At this price, I’d want confidence on recent servicing and no hidden issues, since age-related maintenance matters more than a few dollars either way.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Pioneer traces its roots to 1937 in Tokyo, Japan, when founder Nozomu Matsumoto, inspired by the thrill of imported hi-fi speakers, developed the A-8 dynamic speaker and launched a radio and speaker repair shop. The business formalized as Fukuin Shokai Denki Seisakusho in 1938, evolving into Pioneer Corporation and embodying Matsumoto's philosophy of "Move the Heart and Touch the Soul" through audio innovation.
The brand excels across diverse hi-fi categories, pioneering Japan's first headphones in 1960 with the SE-1 and the world's first component-based stereo system in 1965 via the PSC-5A. Pioneer's portfolio spans amplifiers, speakers, turntables, and DACs, alongside landmark car audio advancements like the 1975 Supertuner-equipped stereo and the 1986 in-car CD player, blending home and automotive excellence.
Today, Pioneer holds a commanding mid-to-high-tier position in the market, revered for reliable, performance-driven gear that balances premium quality with accessibility. Its vintage components attract collectors, while current offerings appeal to discerning buyers seeking robust, innovative sound reproduction without boutique excess.
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