Incredibly rare, and simply incredible. 

I have heard that only 1000 of these units were made.

Two channels, each 500W into 4 ohms, in 1972! 

The biggest stereo amp Marantz ever built. Marantz wanted to build an amp with no limits, the 500 was the result. 

Designed and manufactured in the USA.

This Marantz 500 has just been given an extremely thorough service/restoration, you won’t find another like it.

All high quality parts used. Main filter caps are ‘DCM’ series, the same as original. Still made in USA, and were about $525CAD just for the four main filter capacitors. Similar spec, still good quality capacitors made in Asia could have been purchased for a fraction of the price, but this legendary amp deserves the best. See below for more info on work done.

Running perfectly and very cool, barely warm to the touch. Rock solid stability after restoration.

Power limit switches on the front, you can limit this amp down to 50W into 8 ohms to use with just about any speaker. It sounds great with my Dynaco A25’s.

This amp can be used with any mains voltage 100-220VAC, with rewiring of the power transformer primary. I am happy to do this prior to shipment, just let me know.

Shipping price included is for 1 Day shipping anywhere in Continental USA and Canada. 2 day shipping to most destinations worldwide. Amp will be double boxed, packed extremely well. 

There is one notable scratch on the front panel behind the right handle. Since it's behind the handle, you don't really see it in everyday use. Otherwise, the unit is in quite good condition, please see photos for condition.

Just serviced which included:
- All new transistors (ONSEMI outputs)
- All transistors matched at ~ operating current on a Tektronix 577
- All new electrolytic capacitors (Main filters are ‘DCM’ series, the same as original. Still made in USA. Just the four main filters capacitors were $528CAD/$375USD!) No cheap parts used.
- Many new diodes (most in amp)
- New trimmer potentiometers for DC balance
- New resistors where required
- All new relays (Schrack - made In Austria - same as original)
- All new thermal switches (Klixon brand - same as original)
- New custom mounting bracket for thermal switches
- New Molex connectors - rated for 17A high current
- All new panel bulbs (incandescent - same as original)
- New fan with resistors added to quiet its operation while still providing adequate airflow for regular use (Sunon brand)
- New fan filter mesh
- Top and bottom covers are brand new recreations. Professionally made. Laser CNC cut and black anodized just like the original.
- The right side panel is a brand new recreation. Professionally made. .090” Aluminium like original. Painted black.
- The small front cover on the bottom of the unit with the black bar that covers the power switch and jacks on front is a brand new recreation. Professionally made. Anodized aluminium, near indistinguishable from the original. This piece is often missing from 500’s.
- New handles on front
- Amp fully adjusted as per the service manual.
- All functions tested, soak test, play test, all ok.