I recently received the most recent version of the Headstage Arrow amplifier & I'm totally impressed with it!
The shape & size is perfect for use with an iPod or other similar playback device. I can't believe how thin the amp. is and how great it sounds.
The amps. features,, as I'm sure the majority of you all know, are plentiful:
- replaceable battery
- Bass boost
- Treble boost (not many portable have this - as far as I know)
- Automatic on & Off (lov ethis feature)
- Cross feed
- Gain switch
I have a variety of headphones and so far all the headphones I've tried sound excellent with the amp. It has no problem driving any that I've tried so far. My Senn. HD-650s sound particularily good with the amp. I use the first treble boost to give the highs a little sparkle & leave the bass boost off. The SQ is so good that sometimes I forget that I'm listening to a portable amp., rather than one of my desktops! The background is dead quiet and the amp., (with the bass boost & treble off) is very neutral (neither warm or cold) & transparent.
I've owned quite a few portable apms. over the years & this is simply the best portable taking into consideration its form factor, ability to tailor the amp., to suit a particular headphone, features & sound quality!