I read some information in Multi-IEM Review regarding sibilance in VSonic dynamic-driver. He said that sibilance, to varying degrees, was present in all of the VSonic dynamic-driver IEMs he had tried. :)

Yes, it makes sense too. Thanks kova4a for your explanation.   I think so, because this is my first IEM. Previously I only have ATH-M50 which do not indicate that much sibilance, or even not at all. :)

Quote: hmm ... no wonder vsonic will soon be launching VSD1 with higher impedance, VSD1 special edition. Just tried, the sibilance became worse when I connected the VSD1 directly to Galaxy S4.   Quote:   My VSD1 still has very noticeable sibilance after 100 hours of burn in...

Hi ljokerl,   Can't wait your review of Vsonic VSD1 compared with GR02 BE and GR07 BE :) Mine has already burned in for about 100 hours, but still there is very noticeable sibilance. Do you think burning in further would minimize it?   What would you suggest IEM that can compete with...

Quote:   I'm using standard tips, and they fit me very well. I'm sure I got the good seal. :)

Quote:   I tried the VSD1 with my desktop setup, Mini-ITX PC - FiiO E10 Line Out - Cmoy v2.02 BB (with BB Off). The track I played was "Stay Awhile" by Susan Wong - Close to You. To my surprise, I also experienced sibilance in playing "Old Cape Cod"  by Anne Murray - Croonin'. They are...

I got VSD1 a few weeks ago, I've burned in it for about 100 hours using XLO System Burn In track, but still this IEM prone to sibilance. I'll leave the VSD1 to burn-in for next 100 hours, hope it will go better. Any suggestion?