Fully Restored Marantz 4000 Quadraphonic/Stereo Preamp - Very Rare and Mint Condition

10% price drop
+ $222.02AUD Shipping
This seller is open to offers
Shipped From
Reclaimed Audio Vintage HiFi Restorations - restoredhifi.com
Pflugerville, TX, United States
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About This Listing

For sale is a mint condition Marantz 4000 Quadraphonic/Stereo preamplifier that has had an all out restoration performed on it by us. This is an incredibly rare model that Marantz produced for a short time and they rarely come up for sale...let alone in mint condition and guaranteed functioning perfectly!

Cosmetically we did not have to do much to this unit - really just detailed it while we were restoring it. The original lamps throughout were all replaced with modern LED's that really look great - much better in real life than in the pictures. We can always switch out the color of course but we thought this preamp looked great with the slightly deeper color these LED's have. There is no SQ decoder in the bottom currently - they aren't that rare but our unit did not come with one and does a good job of synthesizing quad from stereo sources or just working as a stereo or quad preamp.

Electronically it first had every single electrolytic and tantalum capacitor throughout the entire unit replaced with modern high quality Nichicon/Panasonic high temp, low impedance, long life capacitors. All failure/noise-prone transistors throughout were also upgraded to modern KSA/KSC series parts for guaranteed low noise, long life performance. Every board was gone over with a fine toothed comb and had any known failure prone parts replaced as well as any solder touched up, especially around any edge connectors or other failure prone spots (from heat soak, shock etc). All caustic/hygroscopic "Sony Bond" glue was removed from any boards. All controls were thoroughly cleaned multiple times for dropout free operation.

The preamp performs flawlessly on all features and functions and has that classic Marantz sound that these vintage Marantz units are all so famous for. You can use this preamp for many different applications including dual stereo, stereo, quadraphonic, quad synthesized from stereo etc. It's a very cool piece and these are very rare to find.

We will package and ship this so it arrives as it left here.

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Product Specs

Listed2 months ago
ConditionMint (Used)
Mint items are in essentially new original condition but have been opened or played.learn more

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