Rebuild Kit - 2245

Rebuild Kit - 2245
Why Rebuild?

Should your Marantz be rebuilt? My answer is: if you are listening to it and enjoying it as-is, carry on! But if the bass response isn't what it used to be (it's not), the controls sound scratchy, or the power switch is funky, consider rebuilding it. 40 year old electrolytic capacitors do not perform as they did when new, sometimes dramatically so. Controls and switches get noisy. And if your power switch has not failed yet, it will. These are some of the issues that a rebuild addresses.

Don't Just Recap It, Rebuild It!

A recap is a replacement of every electrolytic capacitor in your Marantz. This results in a noticeable difference in sound, but more can be done for sound and for reliability. A rebuild includes replacing the transistors and diodes that fail most often. The power switch, of course. And the protection relay, a critical part that the output from the amplifiers goes through before reaching the speakers. Usually the receiver is relamped (awesome LED Kits sold separately), and all the potentiometers, switches, and controls are treated with contact cleaner. And important adjustments are made to the power supply and the amplifiers. The result? Better sound and reliability throughout your receiver. This kit contains the parts needed to rebuild it, not just recap it.

What's Included

The complete kit contains about 92 parts. The parts are bagged individually by circuit board to make it easy to find the parts needed when they are needed.

  • Replacements for every electrolytic and tantalum capacitor
  • Selected transistors and diodes
  • Selected WIMA film capacitors
  • Protection relay
  • Mica insulators
  • Power switch


The standard kit uses the highly regarded Panasonic FC series capacitors. They are rated for high temperatures and long service life and they are the first choice for long term reliability. You have the option of upgrading to Elna Silmic II capacitors. These are rated for the same temperatures as the originals, and have been popularized online, particularly in the Marantz forum on audiokarma.org. Which is a great place to read more about this.

Why Upgrade Capacitors?

Why upgrade indeed? Panasonic FC and Vishay/BC were selected for sound quality and reliability both. It's the standard rebuild kit used at irebuiildmarantz.com. People whose opinions I value say "put in a decent quality cap of the correct value and move on!" This is based in part on the knowledge that today's capacitors perform as well or better than the originals. But then there are the people whose opinions I value that believe a sonic improvement comes from upgrading to the Elna Silmic II and Nichicon Gold Tune caps. I can't hear it or measure it, but I believe them when they say they can hear it. So either way you are going to restore the original sound or perhaps improve on it. Pick which caps you want and you won't go wrong.

LED lamps are available separately.

Shipping Costs

  • Free shipping for orders over $100 in the US
  • $9.95 flat rate to Canada
  • $31.95 flat rate to the EU and Australia

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