I bought this 3 months ago for my earbuds that just werent getting enough juice from my Galaxy. I was very skeptical at first, with all the different amps I saw available. I use to have a very small amp I bought for about ***, but after I went through two of those I decided I didnt want to work with that brand anymore. My main goal was to try and get clear, deep bass, but not ruin my highs and mids. I am happier than I thought I would be. My AKG earbuds now sound better than any other headphone I have heard. and ive heard 2 and **** buds too!