Pioneer SX-3700 Vintage Stereo Receiver — 45 WPC, Custom Cherry Cabinet

Pioneer SX-3700 — Fluoroscan-Era Pioneer, Restored and Re-Veneered in Cherry

A beautiful example of early-1980s Pioneer engineering — the Pioneer SX-3700 stereo receiver, freshly serviced, with its original cabinet lifted from its failing faux-walnut vinyl wrap and re-veneered by Radique Audio in genuine Ottawa Valley cherry. The SX-3700 captures Pioneer at a unique transitional moment between pure analog design and the early digital era — quartz-locked FM tuning, the unmistakable blue Fluoroscan display, and the warm musical character Pioneer’s amplifier sections were celebrated for. Made in Japan, 1980–1982.

Sound and Performance

Rated at 45 watts per channel into 8 ohms with just 0.02% THD, the SX-3700 punches well above its modest wattage figure. Pioneer’s direct-coupled amplifier topology delivers tight, controlled bass, clear midrange, and extended highs with the kind of warm, engaging character that has earned this generation of Pioneer receivers a devoted following. The 10 Hz – 100 kHz frequency response and damping factor of 40 give it confident speaker control across a wide variety of loads, and the 79 dB (MM) / 95 dB (line) signal-to-noise figures mean vinyl playback reveals subtle musical detail without intrusive hum or hiss.

Exceptional Tuner Section

The FM tuner is genuinely one of the strongest mid-range tuner sections Pioneer ever shipped. A 4-gang tuning capacitor with varactor-controlled local oscillator and Pioneer’s P.D.Q. (Pioneer Digital/Quartz) quartz-servo lock keeps frequency rock-steady, while the 5-digit Fluoroscan readout displays tuning with precision well beyond the 4-digit displays of competing mid-range receivers of the era. The dual analog dial backup provides a classic visual element, and the result is FM reception quality that rivals tuners from far more expensive Pioneer models.

Design and Controls

The brushed silver faceplate is anchored by Pioneer’s iconic blue Fluoroscan digital display — the same striking glowing-blue meters seen on the SX-3800 — paired with traditional analog controls for that perfect transitional-era look. Independent bass, treble, and balance controls; MM phono input; auxiliary line input; two tape inputs with independent monitoring; stereo headphone output; dual speaker outputs supporting two pairs simultaneously; and two switched AC outlets on the rear for convenient turntable and accessory power. The control layout is clean, the action is smooth, and the visual presence is unmistakably Pioneer.

Service History — What’s Been Done

This SX-3700 has been freshly serviced and fully verified across all functions. The Fluoroscan display glows bright and even, the power meter responds accurately to signal input, FM tuning is precise and stable, all inputs deliver clean signal, and all controls operate smoothly without scratching or intermittence. Brought back to factory specification both electrically and operationally — ready to anchor a vintage system for many years to come.

The Custom Cherry Cabinet

This is the SX-3700’s original Pioneer cabinet, refinished by Radique Audio in genuine Ottawa Valley cherry veneer. Pioneer shipped these receivers in a faux-walnut vinyl wrap that rarely survives four decades intact; we strip it back to the bare carcass and re-veneer the top and sides in furniture-grade cherry, keeping the factory dimensions and profile exactly as designed while giving the receiver a presence the vinyl could only imitate.

The Ottawa Valley cherry veneer is solid, locally sourced, and finished to show off the wood’s warm reddish-gold grain. Cherry darkens and deepens beautifully with age and exposure to light, so this cabinet will only become more striking with the years. The pairing with the brushed silver faceplate and glowing-blue Fluoroscan display is genuinely stunning in person.

Pioneer SX-3700 Specifications

• Tuning range: FM, MW (AM)
• Power output: 45 W/ch into 8 ohms (stereo)
• Frequency response: 10 Hz – 100 kHz
• Total harmonic distortion: 0.02%
• Damping factor: 40
• Input sensitivity: 2.5 mV (MM phono), 150 mV (line)
• Signal-to-noise ratio: 79 dB (MM phono), 95 dB (line)
• FM tuner: 4-gang variable capacitor, P.D.Q. quartz-servo lock
• Display: 5-digit blue Fluoroscan digital readout, analog dial backup
• Tone controls: Independent bass, treble, balance
• Phono input: 1 x MM
• Tape inputs: 2 with independent monitoring
• Outputs: Dual speaker outputs (two pairs), stereo headphone
• AC outlets: 2 switched (rear)
• Year of introduction: 1980–1982
• Country of manufacture: Japan
• Dimensions (W × D × H): 480 × 364 × 145 mm (18.9 × 14.3 × 5.7 inches)
• Weight: 11.6 kg (25.6 lbs)
• Cabinet: Original Pioneer cabinet, faux-walnut vinyl removed, top and sides re-veneered by Radique Audio in genuine Ottawa Valley cherry

Why This SX-3700 Stands Apart

A musical, beautifully restored Pioneer mid-range flagship from the Fluoroscan era — properly serviced, with one of Pioneer’s finest mid-range FM tuner sections, and wearing its original cabinet re-veneered in one-of-a-kind Ottawa Valley cherry — a finish no production receiver from any era has ever matched. Made in Japan, restored and refinished in Ottawa.

⚠️ Important Information for International Buyers

This receiver is configured for North American 110/120V power. Buyers outside North America will require a step-down transformer and appropriate plug adapter.

✅ Buy With Confidence — The Radique Promise

Backed by Radique’s 90-day warranty and our Perpetual Trade-Back Program. When you’re ready to move on, we’ll take it back. That’s the Radique difference.

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