Marantz 4430 Vintage Receiver – Fully Restored and Recapped – 1 Year Warranty

• CONDITION: Excellent – Serviced, tested, detailed
• MODEL: 4430
• BRAND: Marantz
• TYPE: Quadraphonic Stereo Receiver
• PROTECTION PLAN: 1-Year Warranty Included
• FREE SUPPORT: Must be used before requesting return
• ACCESSORIES: Free a wood case (buyer can choose color as images)
• SKU: 15QJKE4269

Marantz 4430 Vintage Receiver

Condition: FREE TO CHOOSE A WOOD CASE – Excellent – professionally serviced, fully tested, and in top working order. Includes 1-Year Warranty. 

ABOUT:

Marantz 4430 receiver is one of the flagship quadraphonic receivers of the 1970s, offering true 4-channel immersive sound or powerful 2-channel stereo performance. With 30 watts per channel in quad mode or 65 watts per channel in stereo, it delivers both versatility and the unmistakable Marantz warmth.

• CONDITION: Excellent – Serviced, tested, detailed
• MODEL: 4430
• BRAND: Marantz
• TYPE: Quadraphonic Stereo Receiver
• PROTECTION PLAN: 1-Year Warranty Included
• FREE SUPPORT: Must be used before requesting return
• ACCESSORIES: Free a wood case (buyer can choose color as images)
• SKU: 15QJKE4269
  

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.

Specifications:

• Tuning range: FM, MW
• Power output: 30W/ch into 8Ω (quadraphonic)
• Frequency response: 20Hz to 20kHz
• Total harmonic distortion: 0.3%
• Damping factor: 45
• Input sensitivity: 1.8mV (MM), 180mV (line)
• Speaker load impedance: 4Ω to 16Ω
• Dimensions: 17-21/64 x 5-25/64 x 14-3/8 inches
• Weight: 38.5lbs

Key Features

• FREE WOOD CASE OPTIONS – Choose between Brown or Black finish
• Quadraphonic Capability – Full 4-channel sound or powerful stereo mode
• Flexible Power – 30 WPC × 4 or 65 WPC × 2 for versatile setups
• Iconic Marantz Styling – Silver/black face, Gyro-Touch tuning, blue glow
• Built-in Phono Stage – Perfect for vinyl playback
• Fully Serviced & Reliable – Restored and warrantied

REFURBISHED

This Marantz 4430 Quadraphonic Receiver has been fully refurbished and professionally restored, combining powerful quadraphonic performance with elegant vintage presentation:

• Complete recap service: All electrolytic capacitors replaced with modern high-grade audio capacitors, ensuring stability, dynamic range, and long-term reliability.
• Relay & circuitry: Protection relay and audio circuits inspected and serviced, guaranteeing clean signal transfer across all four channels.
• Lighting system: All dial and meter lamps replaced with brand new bulbs — buyer may choose between LEDs (for efficiency and durability) or incandescent lamps (for the original warm Marantz glow).
• Controls restoration: All potentiometers, switches, and selector controls thoroughly cleaned and lubricated with DeoxIT to eliminate static and ensure smooth, precise operation.
• Cosmetic detailing: The brushed aluminum faceplate, glass dial, and knobs polished back to original luster, restoring the elegant factory appearance.
• Walnut veneer case: Comes with a refinished walnut or black piano veneer cabinet, sealed for durability and a classic Marantz look.
• Quad mode verification: All stereo and quadraphonic modes tested and confirmed fully functional, delivering immersive 2-channel and 4-channel playback.
• Technical calibration: Bias, DC offset, and tuner alignment adjusted to Marantz factory specifications.
• Extended bench test: Operated under load for 3+ hours with professional equipment to verify rated output power, distortion levels, and frequency response.

The result is a fully restored Marantz 4430—a rare quadraphonic classic, both cosmetically stunning and technically reliable, ready to perform for years to come.

Ideal Pairings:

• Speakers: Bose 901 Series VI, Klipsch Heresy II, Sansui SP-2500, Pioneer HPM-100
• Turntables: Thorens TD-160, Technics SL-1200, Pioneer PL-530
• Sources: Marantz 5220 Cassette, TEAC A4010SL Reel-to-Reel

🎁 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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Thank you for viewing our listing! Please kindly ensure you read all the provided information carefully!

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!