As others have pointed out, the coresound HEBs are just DPA406x. I own a pair of 4060s, and I love 'em, HOWEVER, I do NOT love coresound...
...I've ranted about coresound on this forum in the past, search for the "critique your rig" thread. Here is a summary:
1) 7 weeks from placing my order with coresound to receiving it. took many emails and phonecalls, several excuses from coresound.
2) coresound is, from what I can tell, a 1-person operation (Len)
3) Len generally doesn't reply to emails... as I found out.
4) not related to the HEBs, but... coresound optical cables are poor quality, and their Mic2496 has issues (or at least, I have issues with the Mic2496). search the "critique your rig" thread.
If you WERE considering a Mic2496 (please don't), the 4060s give out too hot a signal, you'll be constantly clipping. do yourself a favour and get 4061s.
Having said that, I'm VERY happy with my 4060s. Recently I've been running DPA4060 > MPS6030 > JB3, even running them at a fuckoff loud concert I had plenty of headroom (should have bumped the gain on JB3 up by a few dB). I've made some amazing recordings with this rig (in my opinion, of course!).
Now if only I could afford a pair of 402x
best regards,
stephen