Any experience with Tube rolling 6922 for Conrad Johnson preamp?
CJ uses a EH 6922 or Philips PCC88. The Philips is a little more reliable, I’ve had a 2 new EH’s from CJ that were noisey from the get-go. The EH does sound nice, the Philips does as well with a little less sparkle. I am using a Siemens ECC88 6DJ8. It is more refined in the midrange and top end than both in my ET5. |
Try these, great sounding tubes. https://www.upscaleaudio.com/products/matsushita-national-pcc88-7dj8?variant=21830008197 |
The Gold Lion 6922 is a nice tube... it is the only tube to last long in my Classic 2 SE. I went through a few EH that were from CJ and went noisy soon. I have a EH in there now because i was trying to pinpoint a low level hiss and it sounds good and is dead quiet, but for how long? I will pick up another GL soon as it seems to last and sounds good. |
c-j preamps used to be really hard on tubes. They had 29 dbs of gain which required that the tubes be driven hard. Driving the tubes hard makes them go noisy quickly. I see the ET 7 has 25 dbs of gain which is better but still probably not easy on the tube. I suggest you talk to Kevin Deal at Upscale Audio. He will tell you which tubes can handle the punishment your pre dishes out. Kevin is a controversial guy, some like him, others don't. I hope we don’t have that debate again. You will be clear about what he thinks after you talk to him. You can decide for yourself whether you want to do business with him. One 6922 won’t be big money by Audiogon standards, so I say give him a try. |
