Quote:
Originally Posted by
H20Fidelity 
In this listing taken from MisterTao there is a guide for charging and maintaining C&C BH's battery.
The section under lined is what made me curious about the light dimming or described as
darkening in the description.
Quote:
Charge:
Random power into the power outlet and the other end miniUSB plug into the amp 5V power jack, and can be automatically charged. Charging, P / C-color indicator light turns red, fast full when the lights dimmed or extinguished, full automatically stop charging. Air power, or been shelved indefinitely, need to charge more than 10 hours to full charge about 4-8 hours in normal use. Amp internal regulator, charge control circuit will not overcharge, over-discharge, and to ensure that the battery life. Amp can be a number of days to plug power. Batteries are nearly exhausted, P / C light to dark, to extinguish prompted the charge to try to charge ahead, to avoid battery exhaustion forget to recharge.
If the amp is not being used for a long period, should be fully charged kept in a cool, dry place, and every 3-6 months once again full of empty electrical storage may damage the battery.
Regarding E12, I have two concerns, well three if you include the battery time. Firstly, E12 puts out far to much power for my IEM's (I don't use headphones) it's total overkill. Secondly, I am concerned E12 may have a similar veil I experienced with E11 over the entire frequency range, some may notice it as 'warmth' but with E11 I found you actually lost some detail and clarity compared to the sources headphone out alone, that's what made me sell my E11 searching elsewhere. I like crisp, clean, smooth signature with clarity, sparkly treble ,clean non intrusive bass, not dark, warm or muddy. If members who have both E12 and BH can please describe E12's tone I would be interested how the two amps compare in that regard.
I got my BH on Tuesday and have been using it for the better part of every evening (6+ hours of use in addition to being left on by accident for two nights...) and the light doesn't look anything like dim or dark to me yet. 
I guess I might find out what that looks like soon?
Anyway, compared to the BH, the E12 loses in terms of clarity. BH with OUT2 and SF on is terrific at bringing out detail even in busy pieces like Clint Mansell's Death is the Road to Awe, which I have been using to A/B the two amps. The E12 has spectacular bass that destroys the BH's, however; texture, authority, and impact without bleeding into the midrange. The BH's bass boost in comparison to the E12's just sounds like more bass, but without the texture and layers. Not that it's bad, no; the E12's just sounds better.
Regarding treble, I'd rate the BH higher, especially on OUT2 with SF and LF. Comparing the headphone out to the E12, though, I'm happy to report that, to my ears, at least, the E12 improves the treble and clarity; still loses to the BH, though, but only barely. The BH has more sparkle and clarity than the E12. With LF and SF on, I sometimes feel the BH has almost too much treble, but it's never uncomfortable.
To compare the what I think about the two amps' tones, I would say that both deliver a satisfying representation of the spectrum; however, the BH is able to deliver greater clarity, slighter more expansive soundstage, and a bit more sparkle up top while the E12 has a far more textured bass response and a magical mid range that makes me fall in love with vocals. My preference for either amp just depends on what I want to hear from my music or what genre I'm listening to.
I've been tending to use the BH more for instrumental, classical, and sometimes general songs (alternative, indie, some pop) with vocals, while the E12 gets preference with bass heavy music like the whole of EDM (Drum and Bass, trance, progressive house, electro, fidget, dubstep, etc), some rock and metal, some orchestral pieces that prominently feature cellos.
Edited by pngwn - 2/10/13 at 1:56am
Very suitable theory!
