I purchased this beautiful sounding amp In October 1992. I sent it to Conrad-Johnson Feb. 1993 to have it upgraded to an MV-52. As you can see from the photos the 6/10 rating is conservative. The amp is built like a tank and has provided many yeas of reliable sevice. In May 2009 the amp was factory checked for performance.
It has been used lightly since then. The EL-34 power tubes have less than 700 hrs on them. The imput tubes have less than 1000. All tubes where purchased from CJ. I have found the tubes from CJ to be the best sounding and most reliable. I have invoices for the upgrade to MV-52 as well as the CJ factory performance check. CJ box and packing and original owners manual. Spare set of tubes will also be provided. Price includes the cost of shipping which is considerable.