Jadis OR bias value for Mullard RL34 and KT88 help


I just swapped my Gold Lion (reissue) KT88 tubes for Mullard EL34's and was vwery surprised that the volume was so much lower. I checked the bias and found it to be less than 10mv while the KT88's had been biased at 110mv.
I rebiased the EL34's up to 90mv and the volume increased to what seemed to be "normal".
I am looking for the correct voltage to bias the new EL34 to in a Jadis Orchestra Reference.
Any help is appreciated.
128x128mattzack2
Hi,

Can anyone give advise on DA-8 tube biasing? What will happen if amp is not biased properly?

Regards,
Angelo
Angelo, if I'm not wrong, I don't think you need to bias a DA-8. My understanding is that this represented the power amplifier section of the DA60, which features a cathode bias topology. EL34/6CA7, KT77, 6550, KT88, KT90, and KT120 should all be plug and play. Of course, you could confirm all of this with Patrick.