Hi Whazzzup! I bought HP-V1 hybrid tube amp in the beginning of this year. So far, it takes around 4 to 5 hours to charge and last almost 5 hours in normal playback condition. Anyway, it's made in Japan and sound quality is not that bad.Thanks for asking.

  I am just another guy like Johnny come lately to SE846 party :P So here is my Shure SE846 with Fostex HP-V1 combination and all I feel is nothing but bass and warm sound. It's so good and crystal clear to hear Roger Water's bass :)

  I really appreciate those people who contributed their reviews on this hybrid tube amp and I did buy it from local headphone concept shop. I also glad that I made a good choice on my very first amp to explore warm and analog harmonic distortion sound from Fostex. Besides that, I have found...

Because SE315's frequency response cut down at 18.5KHz and some of the golden ear folks dislike the sound signature of shure for not fulfilling their beyond 20KHz taste.

Just some quotes from Jaben Malaysia's topics for "Why do you need an Amplifier" .. "First is raw power. Power to drive a more difficult usually higher impedance load. You may have heard of a headphone's "impedance." Impedance is the combined resistance and reactivity the headphones present to...

If your ear size is just an average then you should try Sennheiser Momentum over ear for better sound quality and comfortable feeling.

Upgrade to SE535 would be within your budget range or if you can spend more SE846 is the best of the best for your sound signature taste.

Try iDSD for not only as DAC but a decent amp to drive your 64 Ohm headphone.

Sennheiser's momentum on ear is not so bad in sound quality and comfortable issue

Try Beyerdynamic's custom one pro if you don't mind bulky

Why don't you try Shure SE846 for bass heavy songs

Entry level Shure's SE215 special edition would be best choice