Yes, you can do it as Peter2 suggestion, I did too. All you need is a hair blower: 1: took it off isine first 2: slightly bend it, keep it it bending form and heat it up 3: wait it cool down

My lunchbox :D

  Both of them are very good iem, my experiences: IS 20s: has very big width & height, no sibilance, warmer sound. Ears painful after >1 hour IE 800: Easy to fit & super comfy, narrow space thus the sound more focus & clearer. Slightly has more ssssss

  What you mean debris?

Any comparison with ie800, XBA-Z5 or AKG N40?   Thanks

  ZxR sound be upgraded with op-amp replacement (more clean, airy), especially with descrete op-amp.   http://www.head-fi.org/t/728124/asus-stx-ii-vs-creative-zxr http://www.head-fi.org/t/623079/creative-sound-blaster-new-series-z-zx-zxr

  My guess, the Virtual barber shop demo is a binaural recording

  V5 has more airy (space, sparkling high) than V5i. For Lovely cube make sure you order Dual version. When install it, you might want to remove the DIP8 socket come with V5.       You also might try the Cable +, they use V5i inside so it will further improve bass weight.   BTW, if you...

  Without op-amp I'm pretty sure headphone out will not work, but not sure preamp mode.   When install/replace op-amp, you must make sure: - Type: dual - Max voltage support: for Lovely cube should be >=15V - Direction: half moon mark (or pin 1) - Space

  You might try V5i (single) version in buffer and Cable +.   V5i also improve bass weight as V5  

  My experience with Burson Opamp in all chain: ZxR --> Cable + --> Lovely Cube - HE 560: too much bass for my taste, I've to remove V5 in the Lovey Cube - HD800: WOW

  I'm not sure, but you can check yourself by remove op-amp and see if preamp mode work.

  Go to Burson product page and choose what op-amp you want to buy. In the op-amp page, scroll down and you will see purchase section   However, If you can find their Distributor in your areas, you can save money (shipping fee) and shipping time. Go to the retailers page and select region...

  idsd has RCA output and headphone output, if you use RCA output (preamp mode), make sure you turn idsd volume to max.

IMO, op-amp in buffer section of ZxR will have significant impact sound signature. So if you have limit budget, you might try with 2 single discrete op-amps in buffer and Cable +, this option would be better P/P upgrade compare to 2 single and 2 dual.