Pioneer SX780 Vintage Receiver

The Pioneer SX780 is a vintage stereo receiver that remains a favorite among audiophiles for its combination of sleek design and powerful performance. Known for its dynamic sound quality and classic aesthetics, this receiver is built with a brushed aluminum faceplate and beautiful wood side panels, making it a timeless piece in any audio setup.

This unit has undergone a professional restoration by HQaudios, bringing it back to peak performance with a blend of vintage charm and modern reliability. Every critical component has been serviced and upgraded to ensure long-lasting functionality, so you can enjoy the signature Pioneer sound with peace of mind. Whether you’re a seasoned audiophile or a collector, the Pioneer SX780 is an exceptional addition to your home audio system.

• CONDITION: Excellent – Serviced, tested, and cleaned
• MODEL: Pioneer SX780
• TYPE: 2-Channel Stereo Receiver
• PROTECTION PLAN: 1-Year Warranty Included
• FREE SUPPORT: Must be used before requesting return
• SKU: 15PAE1006

Customer Service:

Once your item arrives, if you have questions about how your item functions or proper settings, please CONTACT US.

TRADE-IN PROGRAM

“If you have any vintage audios (receivers, speakers, cassette, reel to reel…) & want to upgrade with the serviced one, don’t hesitate to contact us for the best deal. You only need to pay for the difference between yours & mine….”

Note:

The actual color of the product may sometimes differ slightly from the photos due to lighting conditions, temperature, and the device used. Some angles in the photos may not fully reflect the product’s condition. Please read the description carefully and feel free to message us if you have any questions

SPECS

• Tuning range: FM, MW
• Power output: 45 watts per channel into 8Ω (stereo)
• Frequency response: 5Hz to 80kHz
• Total harmonic distortion: 0.05%
• Damping factor: 30
• Input sensitivity: 2.5mV (MM), 150mV (line)
• Signal to noise ratio: 76dB (MM), 95dB (line)
• Output: 150mV (line)
• Speaker load impedance: 4Ω (minimum)
• Semiconductors: 5 x FWT, 11 x IC, 26 x transistors, 22 x diodes
• Dimensions: 18.9 x 5.51 x 12.6 inches
• Weight: 24.69 lbs

KEY FEATURES

• Power Output: 45 watts per channel into 8 ohms
  
• Aesthetic Design: Classic brushed aluminum faceplate with sleek wood side panels
  
• Tone Controls: Bass, Treble, Balance, Loudness for precise sound customization
  
• Tuning: Clear, reliable AM/FM stereo tuning with signal strength meters
  
• Connectivity: Phono, Tape, and AUX inputs for versatile usage
  
• Durability: Heavy-duty construction designed to last
  
• Speaker Options: A and B speaker connections for flexible setup

REFURBISHED

This Pioneer SX780 has undergone an extensive restoration process to ensure it meets modern standards while retaining its iconic Pioneer warmth and visual appeal. The receiver has been meticulously serviced, tested, and upgraded to bring it back to its original glory. Whether for listening to vinyl or your favorite FM station, this unit is built to provide dynamic, distortion-free sound for years to come.

1. Fully Serviced

• Brushed aluminum faceplate professionally cleaned and polished
• Knobs, switches, and pushbuttons cleaned and lubricated for smooth operation
• Tone controls (bass, treble, balance, loudness) tested and calibrated to factory specifications
• Speaker terminals cleaned and retensioned for a secure connection
• Headphone output tested for full, clear stereo output
• RCA inputs cleaned and re-tensioned for optimal signal integrity
• Internal chassis cleaned, dusted, and detailed
• Rear panel cleaned, lettering preserved or touched up

2. Electronic Restoration

• Capacitors replaced across the power supply, preamplifier, tone control, phono stage, and power amplifier sections
• Power rails tested and regulated for stable, reliable output
• DC offset and bias recalibrated to original factory settings
• Transistors tested and replaced where necessary with low-noise equivalents
• Solder joints reflowed in heat-sensitive areas for long-term reliability
• Wood case restored with a premium walnut finish

3. Tuner Section

• FM/AM tuner fully aligned with a precision calibration tool for optimal reception
• FM stereo lock and mute threshold calibrated for high-quality decoding
• Gyro tuning mechanism cleaned and restrung for smooth tuning
• Dial pointer realigned, and dial tracking adjusted for precise tuning

4. Final Testing & QA

• The unit underwent a 2-hour continuous stress test to verify thermal stability, channel balance, and overall performance
• Sound output tested for clarity, balance, and low noise
• All inputs (phono, AUX, tape) tested for noise-free operation and accurate signal handling
• Listening tests performed across all inputs to ensure dynamic, distortion-free audio
• Passed HQaudios’ final quality assurance inspection
  

5. Result

The Pioneer SX780 is now fully restored and ready to deliver the legendary sound quality that Pioneer is known for. The extensive service and upgrades have revitalized this vintage receiver, enhancing both its audio performance and its sleek, classic appearance. The receiver’s sound is warm, dynamic, and crystal-clear, with minimal distortion and impressive tonal balance. This Pioneer SX780 is now a top-tier vintage piece that delivers decades of high-quality listening enjoyment.

SUGGESTED PAIRINGS

• Speakers: JBL L100, Klipsch Forte, Pioneer HPM-100
  
• Turntables: Technics SL-1200, Marantz 6100, Dual 1229
  
• Cassette Decks: Pioneer CT-F900, TEAC A-450

🎁 Unlock an instant $100 voucher with every combo purchase.

PACKAGING & SHIPPING:

Secure Packaging:
Each unit is carefully packed using:

• High-density foam inserts with 5-layer corrugated cartons
• Custom EPE foam corners to protect edges
• Double-wall outer box for shock resistance
• Plastic straps + handling labels to ensure safe transit

Shipping Details:

• Dispatch Time: Ships within 3 business days
• Carrier: UPS Ground (tracked & insured)
• Signature Required: Yes (as buyer’s request)
• Transit Time: Typically 3–7 business days (USA)

International Shipping:
We offer global delivery through the eBay International Shipping Program. eBay handles customs, duties, and tracking.

📦 Note: Packaging may vary slightly depending on unit size or model, but safety and protection are always our top priority.

Thank you for being a valued customer & Thanks for looking!