Ok so here's my comparison between the c&c bh and the headstage arrow 4g. The song I'm using is Change (In the House of Flies) by the deftones, the file type is 256 aac iTunes bought. This test is done on both the ipod 5.5 flat eq and the iPod touch 4g flat eq and both using LOD, also the bh has LF on SF off and is on out 1 the arrow is on bass 1 and all other switches off. Volume 75% on both using Logitech UE 6000 closed headphones
First the bh : the acoustic guitar in the into is very pleasant and chill, and the the bass guitar hits hard and full sounding and present. Soft vocals from chino Moreno sound mega detailed, you can really hear every little crack in the voice. Background effects and voices sound very open and noticeable (one of my favorites things about the bh). Electric guitar kicks in loud with lots of treble and percussion from the drums while the bass line and louder but clear vocals continue, it executes instrumental separation pretty damn good but it's a little on the treble side
Now the arrow 4g: the acoustic guitar is very balanced and true sounding, the bass guitar slams into the intro with authority and very good control, nice rich sound. Then the soft vocals come in and have very good definition and calm. The background voices and effects are spot on but not as lovable as the bh. Electric guitar steals it big time with warmth and the vocals get louder and have meaning while sounding intentionally cold, the drums sound balanced and well spread. The bass falls behind the music and fills it in so freakin nice. The arrow seperates all this at once into a very layered and detailed presentation, this amp is honestly neutral and fills holes in the music one might say.
Overall the literal winner is the arrow 4g. It excels where most stuff struggles, the separation is better when things heat up
But honestly the bh might sound better to some people it's that close. And you can't beat the price and battery life. So if you have neither I would get the bh first to see if it suits you. Legendary deal! And better soundstage.
Hope you enjoyed (only took me an hour and a half)