First off, let me start out by saying it's all a matter of taste. What sound you like may not be the sound I like. I went to a serious stereo store that had every headphone hi end and low end imaginable and the old man that owned the store must have thought I was nuts. I think I tried on every...

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I just spent like 300 bux on a pair of nice Grado sr 325i's and hooked it up to my computer but would like to boost my sound quality cheaply. I looked at headphone amp prices and I'm not willing to drop that kind of cash right now. Is there anyone who has a used one that works and is RELIABLE...