The Sansui QRX-7500A is a classic 4-channel receiver from the golden era of audio equipment. Known for its power, precision, and versatility, this receiver offers a unique 4-channel output system, providing an immersive listening experience for audiophiles who seek a vintage yet reliable audio solution. The unit delivers a balanced sound profile with exceptional warmth and clarity, making it a prized addition to any collection.
This Sansui QRX-7500A has undergone a complete restoration by HQaudios, ensuring it meets and exceeds original factory specifications. The meticulous restoration process includes a deep cleaning, internal upgrades, and a final testing to ensure the receiver is in prime condition for long-lasting performance. With its stunning walnut wood case, black anodized front panel, and fully serviced internals, this receiver looks and sounds just as it did when it first left the factory, only better.
- CONDITION: Excellent – Serviced, restored, Recapped, tested, and cleaned
- MODEL: Sansui QRX-7500A
- TYPE: 4-Channel Stereo Receiver
- PROTECTION PLAN: 1-Year Warranty Included
- FREE SUPPORT: Must be used before requesting return
- SKU: 15JKE4382
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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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: 32W/ch (stereo), 25W/ch into 8Ω (quadraphonic)
Frequency response: 30Hz to 30kHz
Total harmonic distortion: 0.3%
Damping factor: 40
Input sensitivity: 2.5mV (MM), 100mV (DIN), 100mV (line)
Signal to noise ratio: 70dB (MM), 80dB (line)
Output: 100mV (line), 30mV (DIN)
Speaker load impedance: 4Ω to 16Ω
Semiconductors: 159 x transistors, 94 x diodes, 13 x FET, 5 x IC, 9 x zener diodes
Dimensions: 23.4 × 8.0 × 14.6 inches
Weight: 48.1 lbs
Power Output: 100 watts per channel into 8 ohms, providing ample power for any speaker setup.
4-Channel Output: True 4-channel stereo output, perfect for audiophiles seeking an immersive surround sound experience.
Input Options: Phono, AUX, Tape Monitor, and more for versatile source connection.
Tone Controls: Bass, Treble, and Balance to adjust the audio to your preference.
Aesthetic: Elegant black anodized front panel and walnut wood case for a classic vintage look that fits any audio system.
Signal Reception: FM and AM reception with clear, stable signal strength.
Unique Functionality: CD-4 separation and front/rear filter options for tailored listening experiences
This Sansui QRX-7500A has been fully serviced and restored by HQaudios, ensuring that both its performance and aesthetic appeal are brought back to like-new condition. Each component has been inspected, cleaned, and upgraded as needed to ensure optimal functionality and a premium visual presentation.
1. Fully Serviced
Brushed black anodized faceplate cleaned and polished to restore its classic look.
Knobs and switches cleaned with DeoxIT and lubricated to ensure smooth, responsive operation.
Tone controls (bass, treble, balance) tested and calibrated for accurate sound reproduction.
Speaker terminals cleaned, retensioned, and tested for secure connections.
Headphone output tested for balanced stereo output across all channels.
RCA inputs cleaned and re-tensioned for optimal signal integrity.
Internal chassis meticulously cleaned and dusted to ensure the unit functions at its best.
Rear panel cleaned and lettering preserved or touched-up to maintain a pristine appearance.
Brushed black anodized faceplate cleaned and polished to restore its classic look.
Knobs and switches cleaned with DeoxIT and lubricated to ensure smooth, responsive operation.
Tone controls (bass, treble, balance) tested and calibrated for accurate sound reproduction.
Speaker terminals cleaned, retensioned, and tested for secure connections.
Headphone output tested for balanced stereo output across all channels.
RCA inputs cleaned and re-tensioned for optimal signal integrity.
Internal chassis meticulously cleaned and dusted to ensure the unit functions at its best.
Rear panel cleaned and lettering preserved or touched-up to maintain a pristine appearance.
2. Electronic Restoration
Capacitors replaced across the power supply, preamplifier, tone control, phono stage, and power amplifier sections to restore optimal functionality.
Power rails tested and regulated to ensure stable, reliable output.
DC offset and bias recalibrated to factory specifications for precise operation.
Transistors tested and replaced with low-noise equivalents to reduce distortion.
Solder joints reflowed in heat-sensitive areas for long-term reliability.
Walnut wood case included, carefully refinished for a beautiful, long-lasting finish.
Capacitors replaced across the power supply, preamplifier, tone control, phono stage, and power amplifier sections to restore optimal functionality.
Power rails tested and regulated to ensure stable, reliable output.
DC offset and bias recalibrated to factory specifications for precise operation.
Transistors tested and replaced with low-noise equivalents to reduce distortion.
Solder joints reflowed in heat-sensitive areas for long-term reliability.
Walnut wood case included, carefully refinished for a beautiful, long-lasting finish.
3. Tuner Section
FM/AM tuner fully aligned using precision test equipment for excellent reception and stable signal.
FM stereo lock and mute threshold calibrated for accurate decoding of the stereo signal.
Gyro tuning mechanism cleaned and restrung to restore smooth tuning.
Dial pointer realigned and dial tracking adjusted for precise tuning accuracy.
FM/AM tuner fully aligned using precision test equipment for excellent reception and stable signal.
FM stereo lock and mute threshold calibrated for accurate decoding of the stereo signal.
Gyro tuning mechanism cleaned and restrung to restore smooth tuning.
Dial pointer realigned and dial tracking adjusted for precise tuning accuracy.
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 distortion.
All inputs (phono, AUX, tape) tested for noise-free operation and optimal signal handling.
Listening tests performed across all inputs to ensure dynamic, distortion-free audio.
Passed HQaudios’ final quality assurance inspection to guarantee top-notch performance.
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 distortion.
All inputs (phono, AUX, tape) tested for noise-free operation and optimal signal handling.
Listening tests performed across all inputs to ensure dynamic, distortion-free audio.
Passed HQaudios’ final quality assurance inspection to guarantee top-notch performance.
5. Result
The Sansui QRX-7500A now delivers a refined, powerful audio experience, with exceptional warmth, clarity, and deep bass. The restored aesthetics with the walnut wood case and black anodized front panel give the receiver a vintage charm that will complement any audiophile’s setup. This unit is ready to provide years of reliable, high-quality listening enjoyment, whether used for music or home theater applications.
Speakers: JBL L100, Klipsch Forte, Sansui SP-X
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.
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.
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
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)
We offer global delivery through the eBay International Shipping Program. eBay handles customs, duties, and tracking.
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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.
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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.
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