ordered Vivo XE800 here ($18):
http://www.aliexpress.com/item/100-Original-VIVO-XE800-High-definition-moveable-Hifi-Sound-system-in-ear-earphone-with-mic-Voice/32704376144.html
they look exactly the same than those showed in Rillpac and other sellers in AE (Original earphones..), but the price is significantly lower; hope i won't get a white lemmon.. anyway, it's a tiny risk, because all the issues i got in AE were fixed by the sellers gently and quickly.
for example, my defective Tennmak Piano (no bass, after trying everything, tapping the vent holes, using foam tips, and using a better cable): Tony, from Tennmak, is going to send me new drivers quickly and without any problem (consider i reported the issue to him 4-5 months after my order!). will post my impressions when they arrive (forget my old impressions about them, because they were defective units). hope i'll join Piano's enthusiasts now.
another example: HCK sent me regular two **** UE (1DD) instead of **** UEs (1DD+1BA) and HCK UES (2DD), by error (quite unusual, because i received many packages from them, always perfect and fast). i didn't notice the issue because the regular Senfers i received, were sounding quite better than my old regular **** UE. but the difference relied on the cables! (the blue one that i chose with my first regular senfers was not good: avoid it, it's bassy and blurry sound); in fact, i was shocked because couldn't find significant differences between "2DD" and "1DD+1BA" (their cables were good and similar).
Jim has sent me the right drivers now, very quickly without any problem (consider i reported the issue to him 4-5 months after my initial order!).
so i'm very happy with the customer support from these sellers. haven't got any serious problem in 84 AE orders (more than 200 items); all i found are reasonable people. maybe i was lucky, but guess that finding rotten apples is very rare.
btw, the regular **** UE (1DD), with a decent cable, sound very well for the budget (they are bassy, but good resolution overall and no exaggerated peaks). so i have high expectative on **** UEs (1DD+1BA), which must be very similar (sound wise) to **** 4in1; and the shells are very comfortable in my ears, regardless of their size (bigger but lighter than 4in1's, i guess).
