I came across a M-500 a couple years ago. The amp was in cold storage for around 18 years. I plugged it in and it worked but I could tell it needed service. I did my research and boy did I get lucky when I came across Greg's number. I sent the unit out to him and paid for as many upgrades as possible, including getting rid of the cheap power cord and replacing it with an IEC. I used to sell Carver in the 80's so I'm very familiar with the amps and pre-amps. This M-500 sounds SO awesome after Greg did what he does. Greg also stands by his work. A few months ago I had an issue with the r

I came across a M-500 a couple years ago. The amp was in cold storage for around 18 years. I plugged it in and it worked but I could tell it needed service. I did my research and boy did I get lucky when I came across Greg's number. I sent the unit out to him and paid for as many upgrades as possible, including getting rid of the cheap power cord and replacing it with an IEC. I used to sell Carver in the 80's so I'm very familiar with the amps and pre-amps. This M-500 sounds SO awesome after Greg did what he does. Greg also stands by his work. A few months ago I had an issue with the r