I bought this a while ago and never really used it. Now I'm trying it out and it has some pretty apparent distortion if you listen to it at low volume/quiet music or with nothing playing.
I'm hoping the problem is in the tubes and not the amp, but I don't want to buy new tubes just to find out the amp is the problem.
The sound is almost similar to what you would hear if you plugged headphones into a crappy onboard soundcard. Once the amp warms up there is also a very apparent buzzing in the left channel.
Assuming I can get rid of the distortion, I would like to use the Little Dot with a pair of HD650s that I'm thinking of buying. Is this amp enough to drive them? Also, I've been using a uDAC and I'm wondering if passing the signal through this is a bad idea. It's the only DAC I have, but it seems like you can't use it in straight DAC mode because the LD doesn't have S/PDIF in.
Thanks for any help you can offer on the subject.