I agree with Elevick. My Jadis JA80s are auto-biasing and can accept all of the tubes you mention, but not all amps can do the same; I don't think the CJs you have can take other types of tubes, but they can give you the answer better than I.
Changing EL-34's to 6550 or Kt-88's
Hello
I have a Conrad-Johnson Premier 4. It has 8 EL-34's with individual bias contols for each tube, It is a large amp that wieghs 82pounds and is 100wpc. I have seen adds of amps for sale and they say that the amp can take EL-34's, 6550's or kt-88 and soforth. So is it as simple as just switching the tubes and resetting the bias? What is the benifet of switching, more power? or better sound?
Thanks
Darin
I have a Conrad-Johnson Premier 4. It has 8 EL-34's with individual bias contols for each tube, It is a large amp that wieghs 82pounds and is 100wpc. I have seen adds of amps for sale and they say that the amp can take EL-34's, 6550's or kt-88 and soforth. So is it as simple as just switching the tubes and resetting the bias? What is the benifet of switching, more power? or better sound?
Thanks
Darin