Any way to "improve" a Conrad Johnson MF 2500

Thanks for the replies. I read a review of the amp on Steroephile and the reviewer addressed the hum with a Shakti Stone. What the heck is that?

"........One note I should make here: when I first connected the amp, it did hum a little. I checked all of my connections and everything was tight. Instead of experimenting with cheater plugs, which I don’t like to use, I put a Shakti Stone on top of the amp, center towards the rear. The hum went right away and all of my listening was done without a trace of hum."

I have already contacted CJ and I am waiting for their response. Anyone have an idea of how much the upgrade to the "A" model costs? I wonder if it's worth it. Should it be given the "once over" by CJ without the "A" upgrade because it is ten years old?

Thanks for your advice.

Jeff

I put WBT RCA jacks and binding posts on my CJ 350. No A-B possible of course but I thought it gave a worthwhile improvement. I would change the RCAs at least; they are not CJs strong point. There are several RCAs cheaper than WBT which are still worthwhile upgrades. I second installing an iec plug.

Bad power supply caps cause a slight buzz with older amps thru the speakers. fYI

A "Shakti Stone" is the modern version of snake oil. The plug will cost a fraction of what you'll pay for the stone, and be far more likely to work.

When I had mine upgraded it cost $500 plus shipping there and back; well worth it.

Chuck