I've been using the NOS Groove Tubes for some time. Amazingly strong, clean and accurate. They don't sweeten or mellow the sound like some and appear to have pretty flat response. To me, these are worth as much as NOS Mullards and I like the sound better.
Groove Tubes GT-6CA7-GE vs NO GE and NOS Sylvania
Anybody heard the difference between authentic NOS General Electric 6CA7's and the Groove Tubes GT-6CA7-GE? And what about the NOS Sylvania 6CA7's...how would they compare?
Any input is most welcome
Any input is most welcome