The Pioneer SX-3700 is a highly regarded stereo receiver from the golden era of high-fidelity audio equipment, combining a classic design with exceptional sound quality. With its sleek, brushed aluminum faceplate and rich walnut side panels, the SX-3700 represents the quintessential vintage aesthetic that Pioneer is known for. This receiver offers 45 watts per channel of clean, powerful sound, ideal for vintage audio enthusiasts seeking reliable performance.
Fully serviced and restored by our expert technicians at HQaudios, this unit brings both performance back to showroom condition. Whether you're an audiophile or a vintage audio collector, the Pioneer SX-3700 will deliver outstanding sound, making it an ideal addition to any setup.
- MODEL: Pioneer SX-3700
- TYPE: Stereo Receiver
- PROTECTION PLAN: 1-Year Warranty Included
- FREE SUPPORT: Must be used before requesting return
- SKU: 15JKE4521
Customer Service:
Once your item arrives, if you have questions about how your item functions or proper settings, please CONTACT US.
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“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.
Tuning range: FM, MW
Power output: 45 watts per channel into 8Ω (stereo)
Frequency response: 10Hz to 100kHz
Total harmonic distortion: 0.02%
Damping factor: 40
Input sensitivity: 2.5mV (MM), 150mV (line)
Signal to noise ratio: 79dB (MM), 95dB (line)
Output: 150mV (line)
Dimensions: 18.9 x 5.71 x 14.33 inches
Weight: 25.57 lbs
Year: 1980
Power Output: 45 watts per channel at 8Ω, delivering clear, distortion-free audio
Design: Classic brushed aluminum faceplate with walnut side panels, offering a vintage, premium look
Connectivity: Includes Phono, Tape, and Aux inputs for versatility
FM/AM Tuner: Quartz-locked tuning with stable reception and precise tuning
Tone Controls: Bass, Treble, and Balance controls for customized sound
Loudness Control: Enhances low-frequency response at lower volumes
Speakers: Dual speaker connections (A/B) for flexible audio setups
This Pioneer SX-3700 has been serviced by experts to restore its original performance and maintain its classic appearance. All internal components have been inspected, serviced, and functionally tested to ensure optimal performance. Despite the complete restoration, some minor surface imperfections, such as light scratches, remain, typical of use. These do not affect the overall performance or functionality of the device.
General Service & Cleaning
Faceplate, knobs, and switches carefully cleaned and polished
All controls deoxidized and lubricated to ensure smooth, noise-free operation
Original finish preserved to maintain the vintage look
Electronic Inspection & Restoration
Power supply inspected, cleaned, and stabilized
Aged components replaced with high-quality, reliable parts
Bias and DC offset adjusted to factory settings for optimal performance
Solder joints reflowed for enhanced longevity and reliability
Signal Path & Connectivity
RCA inputs and speaker terminals cleaned and re-secured for optimal connectivity
Phono stage tested for correct gain and low noise
Headphone output verified for balanced stereo sound
Tuner & Meter System
FM/AM tuner fully aligned for optimal signal reception
Signal strength and tuning meters calibrated to original factory specifications
Dial and meter illumination restored for consistent and bright lighting
Final Testing & Quality Control
Extended burn-in and listening tests performed to ensure full functionality
All inputs, outputs, and functions tested and confirmed to be operational
Channel balance, dynamics, and thermal stability checked for reliability
RESULT
This Pioneer SX-3700 delivers exceptional audio performance, with restored clarity, stable operation, and smooth functionality. Despite some light scratches on the surface from previous use, the receiver works just like new. The restoration process has ensured that the unit is ready to offer years of reliable, vintage audio enjoyment with the unmistakable warmth of analog sound. Its classic aesthetic and flawless performance make it a perfect addition to any audio setup.
Speakers: JBL L100, Wharfedale Linton, KLH Model Five, Pioneer HPM-100
Turntables: Thorens TD-160, Dual 1219, Technics SL-1200
Tape Deck: Marantz 5025, TEAC A-2300, Akai GX-747
Other Audio Gear: Perfectly complements vintage gear from Pioneer, Sansui, or Marantz
🎁 Unlock an instant $100 voucher with every combo purchase.
Secure Packaging:
- High-density foam inserts with 5-layer corrugated cartons
- Additional internal padding and wrap for transit protection
- Double-wall outer box with corner guards and straps
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 availability, but safety and protection are always our top priority.
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BY BUYING FROM HQaudios YOU AGREE TO CONTACT US DIRECTLY BEFORE LEAVING LESS THAN POSITIVE FEEDBACK, ANY RATING LESS THAN 5, OR STARTING A RETURN!
All items will be shipped within 03 business days of payment being processed!
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.
We provide shipping to the contiguous 48 United States, on most items. Shipping fees to ALL OTHER LOCATIONS will be calculated individually and added to customer invoices. HQaudios is also not responsible for any taxes, local duties, or fees outside of the USA and those are not included in the sale price or ship charge. In the event that the customer refuses a shipment, all shipping costs to and from the country or State in which the item was shipped to are not refunded. Please note, in some cases return shipping can cost as much as double the original ship cost.
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.
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.
Return Policy: 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 "Excellent" items must remain in "Excellent" 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
⚠ For high-value products: Due to the nature of these products, we prioritize fast processing for orders from eBay account holders who have been established for at least 3 years, with a successful transaction rate and feedback score of 99% or higher. For other cases, we will carefully consider the order and proactively contact the buyer to provide prompt support.
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From HQaudios Team!