MARANTZ 4400 AM/FM QUAD RECEVIER WITH WC-43 CABINET FULLY RESTORED For Sale

MARANTZ 4400 FULLY RESTORED GREEN SCOPE 4400 VINTAGE QUAD AM/FM RECEIVER / WC-43 CABINET.

This is my 88th Fully Restored 4400 with (87) sold to date. This is another one of my typical Fully Restored 4400s.

You are offerding on one of Marantz's Flagship Quad receivers!!! This 4400 was fully restored and includes an Original WC-43 wood cabinet.

This is a Mid Production 1974 Green Scope model dated October 2 1974 . SN7482

364 Components Replaced Total

144 electrolytic capacitors

2 speaker protection relays

9 potentiometers

7 fuses

18 lamps

8 output insulators

1 power switch

91 transistors

4 field-effect transistors

2 film capacitors

4 ceramic capacitors

13 varistors

5 diodes

5 resistors

32 tantalum capacitors

2 main filter/ripple capacitors

1 RCA 2BP-1 Scope Tube NOS.

Work Performed

Receiver stripped down and fully inspected.

All switches and controls cleaned and cycled numerous times with different cutting agents and lubricants to ensure proper operation

All lamps upgraded to LEDs.

All boards completely hand re-soldered and flux cleaned to prevent crosstalk

Both main filter/ripple capacitors replaced with stock value 20,000UF/50VDC

All 178 electrolytic capacitors replaced with all high quality Panasonic, Nichicon, and ELNA RFSII Silk—audio graded types used in signal path

Both speaker protection relays replaced with new 48VDC Omron type

The main power switch replaced with 7A E-Switch

AM/FM Section recapped.

DOLBY Module recapped.

6 fuses replaced to prevent false alarm failure due to age

All nine adjustment potentiometers in the amplifier section and on the power supply replaced with Multi turn type for accurate adjustments

All 8 output transistors replaced and installed with greaseless insulators

All 7 transistors on the power supply were replaced

Amplifier’s known to fail differential transistors, constant current transistors and Driver section heat monitoring transistors replaced to ensure reliability

Amplifier’s lower ground straps sanded and re-soldered

All eight varistors in the amplifier section replaced with series stacked 1N4148 diodes

All six transistors in the phono stage replaced with low noise high gain type to ensure clean and reliable phono section operation

Both switching diodes and one varistor replaced in the phono section

All eight transistors in the bi-Amplification section were replaced with high gain low noise type

All four transistors in the amplifier two-four channel section were replaced

All Six transistors in the Matrix Board were replaced

All eight transistors in the tone control section were replaced with low noise high gain type

All eighteen transistors in the pre-amplifier section were replaced with high gain low noise type

All four varistors in the pre-amplifier section were replaced with low noise high gain type

One film capacitor and two ceramic capacitors were replaced with Mylar low tolerance type

Power supply’s scope section’s plug in connector inspected for high voltage arching

One 1/4w 10K Ohm resistor on the power supply was replaced

Power supply’s rectifier stages tested

Scope amplifier’s Vertical and Horizontal transistors were replaced (eight total)

Six high resistance value resistors known to fail on the scope amplifier board replaced with ½ Watt 1% tolerance type

Amplifier’s Idle Current and DC offset values set to factory specification after overhaul and re checked after burn in time

Power supply’s 35VDC adjustment performed

All 26 tantalum capacitors known to drift out of value or fail were replaced with audio graded electrolytic

The Scope Tube is at 100%. The tube was adjusted to factory specifications. The pictures tell it all.

The Scope was aligned and adjusted for brightness and focus.

Both Audio Amplifier Boards DC Offset and Forward Bias set to factory specifications.

Receiver tested in all modes, everything works. Fantastic clean sound out of all four channels.

This unit does not includea SQA Decoder.

Terms

· Local pick up is welcome.

· Payment due in 3 days unless prior arrangements have been made. Payout Plan is available. Information on request.

· Actual unit in photos.

· This 4400 is too heavy for the global Shipping Program.

· A 4400 Owner’s manual is included.

· Double Boxed and shipped fully Insured by FED-EX. Worth $250.00 these days.

· Sold as is, but with 60 day guarantee. You can send it back if it is not as listed or as shown in the pictures.

International Buyers – Please Note:

· This is too heavy for s Global Shipping Program.

As with any electronic unit of this age, this item is sold AS-IS, but is guaranteed to be as listed. This unit was operating properly and will be packaged carefully, and should operate properly upon receipt.

Shipping weight will be 74 to 76 lbs. Free Shipping in Lower 48 States US. A $290.00 value these days. A little extra for Alaska and a little more for Hawaii. Note shipping overseas will run from $500.00 to $700.00. Please make sure you know the actual shipping cost before you place a offer or make an offer. Thanks