I just got Havi B3 pro1 from a headfier. This is a real great Earphone, but I think it has been insanely hyped. Its sound signature is very similar to IE80 and its sound quality is close to IE80. Its value beats 80 for sure but its soundstage/imaging is no better than IE80. Especially soundstage height, though very good, is obvious falling behind IE80. And I think IE80's sound is more refined.
I'm so sorry many people didn't drive IE80 well and degrade this classical Senn.'s product so much!
When comparing, I use my desktop setup: Jitterbug->Modi->A6->IE80/Havi.
where A6 is
http://www.aliexpress.com/item/A6-amp-HD650-K701-fever-HIFI-headset-amplifier-AC-220V-150mW/32688130650.html?spm=2114.30010308.3.10.1YkTJV&ws_ab_test=searchweb201556_10,searchweb201602_1_10057_10056_10055_10037_10049_10033_10059_10032_10058_10017_405_404_407_10040,searchweb201603_7&btsid=6b621c27-3803-4403-aee2-644c835d4747
Interestingly, I found B3 cannot pair with Xduoo X3 well. It seems to be too warm on X3. It's pair with X2+NX1 better than X3. I like this Havi and I agree its soundstage is much better than those like LZ A2, even KEF M200. But it's still cannot catch up the soundstage of IE80! But I do agree these three soundstage kings of IEms: IE800, IE80, and Havi No obvious difference of soundstage wide and depth. But 800 and 80 have obvious better soundstage height.
I agree Havi might be the best value earphones in all the price range. This is a conversation with Peter123:
http://www.head-fi.org/t/781825/peter123s-reviews-planned-reviews-first-impressions-and-comparisons-aka-peters-place/165#post_12632961