I've owned a '95 Blonde Custom Vibrolux Reverb for quite a while. I always liked it as a gigging amp, but it got a little too dirty too quick on the volume knob for my taste. I moved on to a '63 Vibroverb Reissue and a 1967 Blackface Vibrolux Reverb because I wanted more clean headroom. The CVR has been in my practice space for years. It recently got a rip in the grill cloth, so I brought it home to replace it with an oxblood cloth, something I always wanted to do, but never got the motivation. While I had it at home, I started doing a few tube substitutions to see how it would alter the sound. After a few experiments, I think the amp is sounding better than it's ever sounded. It has more clean headroom than before, and it's dead quiet. I replaced V1 and V2 with some JJ 5751's to slightly lower the gain. I replaced the V3 reverb driver with a NOS Mullard 12AT7, and swapped out the phase inverter 12AX7 in V6 with a JJ balanced 12AT7. The amp just came alive with this combination. There's really no other way to describe it. I just wanted to share my experience with anyone else who has a CVR, and wants to get a little more clean headroom with less noise without doing the Moyer Mods.