Sorry I haven't posted any further info gentlemen, I have been out of town on a family emergency.
Regarding the original problem... I have rebalanced the room acoustics using the spectrum analyzer and put a lot more hours on the tubes. Probably 75 hours + now. It does seem to be somewhat better, but the original problem still exists. I went to cheaper interconects and OFHC 10 ga. copper speaker cable as well. Seems the silver is a little too bright.
Still I would love to find a real solution. So, I intend to do some tube rolling with older tubes and experimentation here and there. Finally, I might just return the preamp to CJ and have it gone over throughly, so at least I can have peace of mind.
Interesting on the WXT tubes.
I also have two sets of mono block tube amps that I am rebuilding and I intend to use some of the new issue matched quads of Gold Lion KT88's and 6550's. Hope these live up to expectations.
Thanks,
Dale.
Regarding the original problem... I have rebalanced the room acoustics using the spectrum analyzer and put a lot more hours on the tubes. Probably 75 hours + now. It does seem to be somewhat better, but the original problem still exists. I went to cheaper interconects and OFHC 10 ga. copper speaker cable as well. Seems the silver is a little too bright.
Still I would love to find a real solution. So, I intend to do some tube rolling with older tubes and experimentation here and there. Finally, I might just return the preamp to CJ and have it gone over throughly, so at least I can have peace of mind.
Interesting on the WXT tubes.
I also have two sets of mono block tube amps that I am rebuilding and I intend to use some of the new issue matched quads of Gold Lion KT88's and 6550's. Hope these live up to expectations.
Thanks,
Dale.