I've been using a cheap FiiO E6 portable headphone amp to play audio from my video game consoles (PS3, Wii, Wii U) on my headphones for quite a while now, and decided it's about time I got a dedicated desktop amp. I'd love to get some recommendations for something in the $100 range. It will be used almost exclusively for gaming (some movies). As for the sound, I'd like it to be as neutral as possible for the price. I'd also like little or no "hiss". The E6 I use now has hissing, even when not extremely loud. One last thing I'd like to make clear, is that I want a desktop amp. I've heard great things about the O2, and I know that it's probably close to what I want sound-wise, but I want the input in the back, and the output in the front (and I don't really feel like modding an O2 to be more like a desktop amp).
I understand that I'm probably asking for a lot at that price range, so feel free to also include recommendations for higher priced amps (maybe no higher than $250 though). Thanks in advance for any advice!