Pioneer SX-680 Vintage Receiver | 30 WPC | Cherry Finish

Pioneer SX‑680 Vintage Receiver – Serviced, 30 WPC, Custom Ottawa Valley Cherry Wood Cabinetry

The Pioneer SX‑680 is a classic example of late‑1970s Pioneer quality—engineered for warmth, clarity, and unmistakable vintage style.
Professionally serviced and fully detailed by Radique Audio, this beautifully restored unit delivers 30 watts per channel of musical precision, encapsulated in our signature Ottawa Valley cherry wood cabinetry, for a timeless blend of craftsmanship and sound.

Designed and built in Japan during the height of Pioneer’s silver‑face era, the SX‑680 exemplifies the balance between simple elegance and enduring reliability.

Service & Condition

• Fully serviced to original Pioneer specifications

• Deoxidized controls and recalibrated circuits

• Exclusive Ottawa Valley cherry wood cabinetry

• Faceplate, knobs, and meters in excellent cosmetic condition

• Functionally tested, performing to factory standards

Features

• 30 watts per channel into 8Ω (stereo)

• Loudness function & FM muting

• Dual power and signal meters

• Phono, tape, and aux inputs

• Click‑stop bass and treble tone controls

• Sensitive FM tuner with dual‑gate MOS FET

Specifications

• Power Output: 30WPC into 8Ω

• Frequency Response: 5Hz–100kHz

• Total Harmonic Distortion: 0.1%

• Damping Factor: 25

• Input Sensitivity: 2.5mV (MM), 150mV (line)

• S/N Ratio: 75dB (MM), 90dB (line)

• Speaker Load Impedance: 4Ω minimum

• Dimensions: 17.1″ × 5.7″ × 12.4″ (435 × 145 × 314mm)

• Weight: 8.9kg (19.6 lbs)

Why Choose Radique?

At Radique Audio, we’re passionate about giving classic gear a second life.
Each component is carefully serviced, tested, and refinished to deliver decades of listening enjoyment—while keeping legendary pieces out of the landfill.

Every order ships in a heavy‑duty 275lb‑test double‑wall box, cushioned with industrial bubble wrap and reinforced tape for safe journey home.
Watch our unboxing video

📦 Ready to ship promptly after purchase

⚡ Important Voltage Information

Configured for 110/120V North American power.
If outside North America, use a step‑down transformer and appropriate adapter.

Radique Advantages

• Bumper‑to‑Bumper Warranty

• Perpetual Trade‑Back Program

• Exclusive Ottawa Valley cherry cabinetry craftsmanship

• Careful, double‑wall shipping protection

📺 Visit the Radique YouTube Channel for restoration stories and behind‑the‑scenes videos.