Pioneer SX-3900 Vintage Receiver – Fully Serviced, Recapped – 1 Year Warranty

• CONDITION: Excellent – Serviced, tested, and cleaned
• MODEL: Pioneer SX-3900
• TYPE: 2-Channel Stereo Receiver
• PROTECTION PLAN: 1-Year Warranty Included
• FREE SUPPORT: Must be used before requesting return
• SKU: 15UJKE4073

Pioneer SX-3900 Vintage Receiver

Condition: Fully tested, restored, recapped, serviced– Excellent sound

ABOUT:

Pioneer SX-3900 which was Pioneer’s top of the line Fluoroscan receiver. 

Pioneer SX-3900 was one of Pioneer’s last great monster receivers from the early 1980s, rated at a massive 120 watts per channel. With its distinctive blue Fluoroscan digital display, rugged build, and high-current amplifier design, the SX-3900 represents both vintage muscle and futuristic styling of its era. Known for its clean, powerful sound and striking looks, it has become a true collector’s favorite among Pioneer’s top-tier receivers.

• CONDITION: Excellent – Serviced, tested, and cleaned
• MODEL: Pioneer SX-3900
• TYPE: 2-Channel Stereo Receiver
• PROTECTION PLAN: 1-Year Warranty Included
• FREE SUPPORT: Must be used before requesting return
• SKU: 15UJKE4073

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: 120 watts per channel into 8Ω (stereo)
• Frequency response: 7Hz to 80kHz
• Total harmonic distortion: 0.005%
• Damping factor: 60
• Input sensitivity: 2.5mV (MM), 150mV (line)
• Signal to noise ratio: 86dB (MM), 105dB (line)
• Output: 150mV (line), 1V (Pre out)
• Semiconductors: 15 x IC, 6 x FET, 89 x transistors, 62 x diodes
• Dimensions: 20.71 x 6.93 x 17.79 inch
• Weight: 44.09 lbs
• Accessories: FM T-type antenna
• Year: 1980

KEY FEATURES:

• Monster Power – 120WPC of clean, distortion-free output
• Fluoroscan Display – Striking blue-lit digital meters, a Pioneer hallmark
• High-Current Amplifier Design – Tight bass, dynamic headroom, and musical control
• Advanced Tuner Section – Excellent FM sensitivity and stability
• Classic Pioneer Styling – Brushed aluminum faceplate, solid knobs, wood case
• Collector’s Appeal – One of the last and most advanced Pioneer monster receivers

REFURBISHED:

This Pioneer SX-3900 has undergone a complete refurbishment process to restore both its technical performance and aesthetic appeal:

• Electrolytic Capacitors Renewal: All electrolytic capacitors in the power supply, amplifier, and audio circuits were replaced with high-grade audio capacitors to ensure stable operation, lower noise, and improved longevity.
• Power Supply & Transistors: Power supply circuits were rebuilt, with transistors and rectifiers tested and replaced to deliver clean and consistent power output.
• Switches & Controls: All selector switches, potentiometers, and push buttons were thoroughly cleaned and lubricated, eliminating crackle and ensuring smooth operation across all functions.
• Lighting Replacement: All indicator and dial lamps were replaced with brand-new, high-quality lamps, restoring the signature Pioneer glow.
• Meters & Tuning Pointer: The signal and tuning meters, along with the tuning pointer, were carefully inspected, recalibrated, and adjusted for accuracy and responsiveness.
• Quartz-Lock Tuner Alignment: The FM/AM tuner section was professionally aligned using RF signal generators to ensure excellent sensitivity, selectivity, and quartz-locked accuracy.
• Cosmetic Detailing: The brushed aluminum faceplate and knobs were cleaned and polished to remove signs of age. The original wood case was refinished, highlighting its natural walnut veneer and restoring a classic vintage look.
• Functional Testing: The unit was bench-tested for extended hours to verify stable output, proper channel balance, and reliable operation under load.

Result: A fully restored Pioneer SX-3900 that not only delivers the powerful and dynamic sound it was famous for but also presents beautifully with its glowing meters and classic walnut wood case.

✅ Backed by 1-Year Warranty (repair or replacement)

SUGGESTED PAIRINGS:

• JBL 4343 Studio Monitors Speakers – Studio-grade precision with monster power
• Marantz 2130 Tuner – Complementary premium tuner pairing
• Acoustic Research AR-58B – Accurate acoustic suspension synergy

👉 Perfect for collectors, vintage enthusiasts, and audiophiles who want the rare Pioneer SX-3900 with its iconic Fluoroscan display.

🎁 GET A $100 VOUCHER INSTANTLY WHEN YOU BUY A COMBO!

PACKAGING & SHIPPING:

Secure Packaging:

• Each unit is carefully packed using:

• Nylon wrap and sealed inner carton

• 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.

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We strive to describe all items honestly and accurately. However, as human beings, we may occasionally make mistakes. If you have any doubts or encounter conflicting information, please inquire before purchasing or making an offer

We kindly request that all buyers give us the opportunity to address any issues.

Payment Policy:

All buyers are required to make immediate payment or contact us within 24 hours to arrange payment, with payment received within 3 days. Offers submitted under the Best Offer feature are considered binding agreements and require immediate payment upon acceptance. Failure to adhere to these terms may result in substitution or cancellation of the transaction.

Payments must be accompanied by a valid shipping address listed as Confirmed. Payments with invalid shipping addresses will be refunded and may incur a processing fee deducted from the refund amount.

Shipping Policy:

This is for local pickup or we will ship it very carefully so that it arrives in good shape like it is now. Our customers’ satisfaction means everything to us. Once you get this item, feel free to contact us if it has any problems! I will try to answer any questions that you may have in a timely fashion.

All shipments are processed within 03 business days of payment, whenever possible. In the event of stock issues causing a delay, customers will be promptly notified, and alternative shipment arrangements will be made. Customers are responsible for any charges incurred due to failed delivery attempts or re-delivery.

Return Policy:

Our Free Support service must be utilized before requesting any return, for any reason.

Items may be exchanged within 30 days if defective or not as described, with a full refund of the purchase price if an exchange is unavailable.

If due to seller error, we will issue a prepaid return label or arrange for reimbursement of return shipping expenses as per this policy, not exceeding the original shipping cost.

The address for returning shipment: 10851 Capital Ave, Garden Grove CA 92843

Returned items may require inspection before determining fault. The item must be received in its original, unaltered condition with all original packaging. Electronic items cannot be opened or tampered with; sealed items must remain sealed, and “Mint” items must remain in “Mint” condition.

No returns will be accepted without first contacting us for Free Support, troubleshooting, or evaluation.

Warranty policy:

The warranty covers technical parts for up to 12 months from the date of receipt, provided there is valid evidence and the item remains sealed, unaltered, and has not been disassembled or internally inspected/repaired. Please note that shipping costs for warranty service will be the seller’s responsibility if the item is found to be defective.

⚠ Important Notice:

To ensure a smooth warranty process, we kindly request that you record a video while unboxing your package upon delivery. Any claims related to product damage or warranty service must be supported by clear video and photographic evidence. Please submit all required documentation to the official HQaudios email for prompt assistance.

***Failure to provide sufficient information as per our guidelines may result in the rejection of your request.

If you have any issues or dissatisfaction with our services, products, or policies, please refrain from leaving negative feedback immediately. Instead, contact us right away so we can provide you with the best possible solution and have the opportunity to improve our service quality!

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