To follow up on this, I tested my current set of tubes and my power (and a few of the input) tubes were microphonic. The RCA 6080 I had in, that isn't supposed to be very good in the first place rang like a bell when tapped with a little force from a pencil. So I changed that out for a NOS 6AS7G...

I don't know for sure but I don't think so. I should have said at 50%+ it's starting to get loud, at 75% it is pumping and close to too much so it sounds like this is similar to yours. Thanks, that confirms that aspect is fine then it would seem. I've been listening to it between 9 (1/4 turn)...

Thanks. I do have a 6sn7 adaptor that came with it, but no tubes as yet. In Canada it seems hard to source them. I'll have to import.

Hi, newly purchased Crack+Speedball owner here (unit is 9 months old, proffesionally assembled). Thanks for all the help in this thread for helping me decide to get it. I have a question though that is niggling me on it. So I have a Titanium HD soundcard in my computer which I was using prior...