Originally Posted by Swampjam
It sounds perfect which is why I feel like a dweeb complaining about something that sounds fine. I literally just jammed with my brother who is a loud drummer, 5 minutes ago sounded great. My ear pussies are cumming. Both tubes seemed to be the same temp this time. But the VU meter shows me that tube number 2 does get driven a little bit less. (Very minor) I purchased it from Sweetwater brand new. Authorized dealer.
If there is only a slight difference stop worrying, getting a stable exact match from New Production tubes is a futile effort. The quality controls and expertise are not there to be had. If you bought from Sweetwater a visit to an authorized tech cost you nothing but time. If the unit does actually fail within the first 30 days IIRC, Sweetwater takes care of everything with an exchange unit.
The bottle shape looks like KT88s, a little stouter version of the 6550.