Don't do this! Find a tech in your area to do it for you. Don't risk damaging your amp or worse by attempting an upgrade yourself you are not qualified, by your own admission, to perform. Not to mention potentially tanking the resale value of your amp. A little common sense goes a long way here.
14 responses Add your response
Follow your hot and neutral power cord leads(within the chassis) and among first connections, you’ll find three diodes, connected in series to each AC lead. Three will be facing cathode to AC supply lead and three: anode to AC lead. Mine had a single piece of shrink tubing, on each set of three and were strung between two terminal trips. If you know the cathode end of a rectifier from the anode end and are competent with a soldering iron. It’s a very easy process, to replace these with HEXFREDs. I mounted mine(in my Cary SLM-100s) on small blocks of Corian. If you feel competent and interested, I can email a couple pics of my install. Cary also offers the upgrade service, if not. (http://www.caryaudio.com/upgrades-and-modifications/)
My Cary amp has 2-560uf caps that I replaced with Clarity TC caps. I had to add a 3 inch wooden expansion chassis to fit them. These 1200 uf caps could be replaced with Clarity TC caps as they can be ordered up to 600 and above uf. Problem is they are the size of those large 3 inch in diameter computer grade caps made by Mallory and others. Clarity TC caps are sold by Parts Connextion and they are the best I have used in power supplies. Wonderful. Larger values can be ordered directly from Clarity.
Also, I think your 1200uf caps are in series, like mine, to handle the voltage near 500vdc. The Clarity TC caps handle 600 Vdc so no need to put them in series. This means 600uf is closer to your target with Clarity TC. My 560uf caps were in series so I only had to deal with 230uf total. My four 80uf TC caps would have been enough, but I added capacitance because I had the room.
With Clarity TC you don't need 600uf as builders, modders, and Clarity point you can achieve the needed results with lower uf options from Clarity. Look them up on the net and read about it.
Here are some pictures of my Cary Rocket 88r mod with those blue Clarity caps. I also put some ASC film caps in the power supply...those white ones. The amp no longer has any electrolytic caps in it. All replaced with far better sounding film caps. Mundorf Evo, Clarity TC, and those ASC film caps.
Here are some pics. I used 4-80 uf Clarity TC caps as well as those ASC.