Marantz 4220 Quadraphonic Receiver with WC-10 Wood Cabinet – Professionally Restored – 1-Year Warranty

Professionally Restored by HQaudios – Fully Tested – Backed by Our 1-Year Warranty

ABOUT THIS UNIT

Up for sale is a vintage Marantz 4220 AM/FM Stereo 2 + Quadradial 4 receiver, professionally serviced and restored by HQaudios.

The Marantz 4220 is a true 1970s quadraphonic receiver that can operate in either conventional 2-channel stereo mode or 4-channel quadraphonic mode.

In 2-channel stereo operation, the receiver delivers approximately 20 watts per channel into 8 ohms. In 4-channel operation, it delivers approximately 8 watts per channel into 8 ohms.

This unit includes the WC-10 style wood cabinet shown in the photos, giving the receiver the classic finished Marantz presentation.

The receiver shown in the photos is the actual unit for sale.

RESTORATION & SERVICE WORK PERFORMED

Work performed includes:

• Receiver opened for internal inspection and servicing
• Internal chassis and accessible electronic areas cleaned
• Power supply operation checked
• Front and rear amplifier channels checked for proper operation
• 2-channel stereo mode tested
• 4-channel quadraphonic mode tested
• Front and rear channel operation verified
• Volume, balance, and tone-control functions checked
• Selector switches and operating controls cleaned and exercised
• AM/FM tuner functions checked
• FM stereo operation checked
• Tuning mechanism and dial operation checked
• Phono input tested
• Auxiliary and tape-related signal paths checked
• Speaker outputs checked
• Headphone output checked
• Front-panel lamps and indicators checked
• Rear-panel connections inspected and cleaned as required
• Unit function-tested after servicing
• Extended listening test completed before final QC

COSMETIC RESTORATION & DETAILING

• Exterior surfaces carefully cleaned and detailed
• Aluminum faceplate cleaned while preserving the original lettering
• Control knobs cleaned and polished
• Dial glass and display surfaces cleaned
• Rear panel cleaned and detailed
• WC-10 style wood cabinet cleaned and cosmetically restored
• Complete unit given final presentation detailing before photography

IMPORTANT SERVICE NOTE

We describe restoration work based on the actual service and condition of this unit.

We do not advertise this receiver as “fully recapped” or claim specific electronic components were replaced unless that work is documented for the individual unit.

FINAL QC & TESTING

Before listing, this receiver was checked for:

• Power-on and startup operation
• 2-channel stereo playback
• 4-channel quadraphonic playback
• Front and rear amplifier channel output
• AM reception
• FM reception
• FM stereo operation
• Phono input
• Auxiliary and tape functions
• Speaker outputs
• Headphone output
• Front-panel controls and switches
• Lighting and indicators
• Listening performance through speakers
• Final cosmetic condition

The receiver is operating properly at the time of listing and is ready for normal use.

KEY FEATURES

• Classic 1970s Marantz receiver
• 2-channel stereo and 4-channel quadraphonic operation
• Approx. 20W per channel into 8 ohms in stereo mode
• Approx. 8W per channel into 8 ohms in 4-channel mode
• AM/FM analog tuner
• FM stereo reception
• Phono input for turntable use
• Auxiliary and tape connectivity
• Multiple speaker outputs
• Front-panel headphone connection
• Classic Marantz illuminated dial
• WC-10 style wood cabinet included

FACTORY TECHNICAL SPECIFICATIONS

• Manufacturer: Marantz
• Model: 4220
• Type: AM/FM Stereo / Quadraphonic Receiver
• Channels: 2-Channel Stereo / 4-Channel Quadraphonic
• Stereo Power Output: Approx. 20W per channel into 8 ohms
• 4-Channel Power Output: Approx. 8W per channel into 8 ohms
• Tuner: AM / FM Stereo
• Phono Input: Yes
• Country of Manufacture: Japan
• Era: 1970s
• Approx. Dimensions: 14.17" W × 4.72" H × 11.03" D

COSMETIC CONDITION

This receiver presents very well for a vintage component of its age.

The faceplate, knobs, dial area, cabinet, and rear panel have been cleaned and detailed as part of the restoration process.

Because this is genuine vintage equipment, minor age-related marks or small cosmetic imperfections may remain.

Please review all photos carefully, as they are part of the description and show the actual condition of the unit you will receive.

WHAT IS INCLUDED

• 1 × Marantz 4220 Receiver
• 1 × WC-10 style wood cabinet shown in the photos
• Only the items shown and specifically described are included

PACKAGING

Vintage receivers require substantially more protection than modern lightweight electronics.

This unit will be professionally packed with protective wrapping, dense cushioning, and appropriate carton protection to help protect the faceplate, knobs, cabinet, and internal components during transportation.

A final QC check will be completed before shipment.

1-YEAR WARRANTY

This unit is backed by our 1-year warranty.

If you have any setup or operating questions after receiving the receiver, please contact us. Many vintage-audio questions can be resolved quickly with basic setup guidance.

ABOUT HQAUDIOS

HQaudios specializes in professionally refurbished vintage audio equipment for the U.S. market.

Our restoration process focuses on functional reliability, careful cosmetic presentation, detailed testing, professional packaging, and after-sale support.

Each refurbished unit passes through multiple stages of inspection and QC before shipment.