groups of 4 with very similar responses. Nice to have but not required.
The Rocket 88 requires (per manual) electrically and brand matched tubes. Some amps require this and some amps don't.
Tube Amp question:TUBE replacements: explain MATCHED?
I don’t get the mystery behind it all. I have a Cary CAD- 808…( I’m buying early before I need to replace)… so far, I have bought SOVTEK, in the EL 84, ( new)… I have bought 12AX7WC SOVTEK TESTED STRONG MATCHED PAIR (difference = 0%) TUBES=ECC83, and now I’m looking at (4) Lightly Used SOVTEK KT88’s… I…but I’d rather buy NEW KT88’s… does MATCHED mean I cannot buy another brand/make of a KT88? I believe this would fulfill needs to properly replace what I’m running now…I bought the amp with tubes installed… I am a novice… amp sounds great… however I need the plug-in to check the Bias, and I guess a meter?
Does matched mean I have to stay with the same brand? I need (4) more KT88 tubes. Do they need to be (4) matched tubes?
SOVTEK only?
Thanks
Dave