as mentioned, this site seemed to have the most/best info for upgrading/getting the best out of this amp, which is how I found you.
This the the amp I bought here -
http://www.audiogon.com/cgi-bin/cls.pl?ampstube&1304805398the smaller tubes have already been rolled with telefunken and tungsol.
Bias - must say I am pretty ignorant here. I thought it was self biasing, but then I read where you need to adjust the bias. I am afraid when I get it I will have some elementary questions about this. I'll apologize ahead of time.
Also, I hate to be the new user that just comes in and gets help for his new piece of gear - I really never knew about this place before.
My gear is probably not as good as most here, but it makes me happy and is a work in progress.
I have just been trying to get my main 3 components squared away and then would have found you for sure when I started researching DAC's. Currently I am using a pair of MartinLogan SL3 (just bought a few weeks ago) and will be using a restored Pioneer Spec 2 on the woofers with the Mingda on the panels with a Conrad Johnson PV2AR that has been modified with Multicaps and the balance bypased (my first piece of tube gear which led me to the Mingda).......nothing great, but better then I thought I would have at this point. I am on a fixed income (disabled vet - peacetime warrior) so I have to upgrade in stages.
Hopefully at some point I can contribute something tho my knowledge is obviously limited compared to most here.
Oh yea, don't hold it against me that I am an American