I've been wondering lately on what would be a good possible amp upgrade in the $300 & below range from the Hifiman EF2A (w/ Mullard CV4010 Tubes)? I own a Beyerdynamics DT990/600, and I am planning on upgrading my DAC soon to the HRT MS2. I thought about grabbing the Schiit Audio Asgard as it is a Class A amp, and I think with the HRT it would sound magnificent.
I once heard the DT990/600 with the Asgard, but it wasn't an ideal listening experience due to my environment and the fact that the cables that connected my DAC (the FiiO E10) and the Asgard were in really bad shape causing distortion of many sorts. It wasn't a nice experience at all. I am reconsidering it though, along with the Little Dot MKIII and the Darkvoice 336se.
So what do you guys think?