C&C BH Portable Headphone Amp

General Information

C&C BH CC BH Portable Headphone AMP & 2011 version

BH Features:
1. professionally designed low-impedance headphones special batteries in portable amp, smaller than a credit card (aluminum case projection), the thickness of a 9-type aluminum alloy pot limit;
2. dual output headphone jack, OUT2 with a high-quality PtoB impedance line, listening to music for 2 people;
3. with the gain selector switch, to adapt to a wider range;
4. dive + low frequency sound field expansion of special compensation to make up the majority of less than headphones, sound is more perfect;
5. imported high quality fever potential, selection of matching left and right balance, ensure the sound quality;
6. using large-capacity high performance lithium polymer battery with charge and discharge protection;
7. Built-in smart charging circuit voltage will not overcharge, can listen to music while charging;
8. all tantalum capacitors + red WIMA coupling enthusiast, isolated power supply design, the sound is more pure;
9. Maximum output power: 300mW +300 mW;
10. headphone adapter Impedance: 8-300Ω;
11.THD + N: <0.001%;
12. Frequency response :10-100kHz / 1dB;
13. Long life time: about 80 hours;
14. Pocket size, Size: 76 * 57 * 13mm (aluminum housing);
15. Weight (including batteries): 100g;
16. Charging Power Interface: 5V0.5A DC, Universal miniUSB interface.

Latest reviews

Pros: Inexpensive and Great Sound for Price!
Cons: With Gain on There is Hissing
My Review: see link below: https://ae8f1decb12a1a7b7992e5798da6d3caca73de45.googledrive.com/host/0BxYhWX_uhcC3bWJYS0V1T3Q1bWc/index.html
Pros: Gain,Bass/Trebble Boost, Soundstage switches, all work in positive way, ultra portable
Cons: design could be a little better
This is an amazing ultra portable amp. I paid 99$ for it and couldn't be happier. 
This amp has one of the best soundstage i've heard for this price , if not the best. The soundstage can easily improve with the switch ON . The detail is really good , and with the bass boost switch which also boosts treble a little bit , the detail and clarity is even more improved . There is another switch as well for higher impedance cans to give more juice but i rarely use it for my IEMs. 
Ultra portable , this amp is extremely small and comes with a case and all necessary accesories as well with a wall adapter to charge the batter within 6 hours instead of the usual 12 hours needed for amps.
I would prefer the volume switch to be bigger so that i could easily adjust the volume , but i understand the logic behind this , since it is a very small amp and wanted to keep that size.
This is a great amp for the money 
Pros: Imaging, soundstage, clarity and treble switch, ridiculous battery life
Cons: Volume knob loose enough to accidentally turn, small range for IEMs, EMI magnet
I'm really impressed by this tiny little amp. The C&C BH is truly a portable amp, hardly bigger than a tube of chapstick and boasting an insane battery that supposedly lasts 60+ hours. I've not yet charged mine since opening it a few days prior to this review and it's still going strong. The BH also has smart charging, so when it finally does run out of juice, you don't have to worry about over-charging it; it'll be good to go when it's full and won't damage itself. It can also be used during charging.
I have a few minor issues with the build. Sometimes, the jack is a little loose and needs a little re-adjustment to get the sound right. Only happens every once in a while and is easily fixed, but should be noted. The volume knob is almost too easy to turn and accidentally spike one's volume, especially IEM users. Again, not huge, but something to note. The knob is perfectly fine while the unit is in a pants pocket. Overall, it is very sturdy and solidly built.
The BH is fun with the different switches and outputs available to choose. OUT1 has a more forward mid-range, making it lovely for vocals. OUT2 has less power than OUT1, but also has a wider soundstage and greater clarity. IEMs and lower impedance cans will be better on OUT2 than OUT1.
In addition to the different outs, the BH has a hi/low gain, low frequency switch, and soundfield switch. It's worth noting that the LF switch also boosts treble a little bit, but not to sibilant levels. 
I only have an AD900X to use with my BH, but the two pair quite nicely. The bass boost smooths out the lower end of the AD900X while maintaining a good level of clarity and detail on OUT2. 
For $100, I definitely recommend this amp. The sound quality is great and the battery life is out of this world.
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