Threelury, yes, i think amp will resolve some issues but if earphones are not cutting for you i would recommend change them for something else or better ones. i am not knowledgeable about Vsonic and know many like them but it might be pairing is not good enough and missing music pleasure is not worth keeping them.
Joesph, many of us bought BH from pollychen on ebay: http://www.ebay.com/itm/C-C-BH-Portable-Headphone-AMP-battery-AMP-CC-BH-NEW-/261172737290?pt=US_Pro_Audio_Amplifiers&hash=item3ccf1bb50a
as for C3 i bought my from MisterTao: http://www.mistertao.com/taobao-products/taobao-item-15901459904.html
buying from MisterTao is a bit complicated because you first must create an account and transfer money on it which will cover purchase + fee + shipping. you can lookup shipping rates there before wiring money. when you pay them C3 it will take a few days before they buy it for you. after this you will receive second notification to pay shipping fees. after you pay shipping fees they will send your C3 per post, takes about 3 weeks to collect.
pay attention you have to select C3 version, either 4G or 8G, then you can also choose if you want have it with 16G micro card or just player. micro SD you will receive most likely will be Sony and works fine.
why i decided to suffer this hassle? because from Mistertao i receive C3 with many goodies that come as gifts including silicon case, various cables, charger and a few smaller things. from Hong Kong you will pay the same for C3 but without all nice goodies.
if you do not want all this hassle with Chinese website (really mind blogging experience and requires patience) then you can find plenty of offers on ebay from HK.
HK merchants work fine and shipment takes less time.
Edited by Gintaras - 2/25/13 at 9:50am