I have been using my trusty iBasso D2+ Boa for more than 3 years now, and I think it may be time to upgrade to a better one as both my headphones and I have been getting increasingly demanding lately. Any recommendations for portable amps/portable tube amps for around the price of 350 USD?
The former amp I mentioned has served me really well, but recently its been giving me hissing noises, and I can feel that the knobs and screws aren't going to last much longer. I was looking at the Sony PHA-1, and some amps from Ray Samuels... Counting on you guys to give me some reliable advice