I had a Premier 140, which is a 140 wpc version of the MV60, but like the MV60SE, uses 6550 output tubes instead of EL34's for the MV60. The MV60 uses circuit boards and the tube sockets are mounted to the board. I think the MV60 and MV60SE have been reliable products, as opposed to the Premier 140, which was problematic. I had a number of problems with the Premier 140 including the blowing of internal and tube fuses, but I don't think the MV60 has suffered these problems. This may be why the Premier 140 was replaced by the LP70 monoblocks but I believe the MV60 is still in production.
