Stereo mic wiring

[swingdoc]

Hi again,
Anyone here know how a stereo mic translates its signal? It seems to me that if both capsules are sending their signals through a single connector, that it has to be summed, no? And if summed, how does it retain its stereo image? I know there are stereo adaptors , but is it just an XLR split into two XLR outs?
I have a stereo B&O mic I just got, anybody here no how to wire a 5 pin stereo-out to two XLR's?
(The other post is regarding a single (figure mic)
tHANKS !

[soundguy]

chances are, its something like Pin one ground, 2 hot, 3 cold, 4 hot, 5 cold, but without a schematic you'll never know for certain. If you carefully open up the mic, Im pretty sure those are transformer balanced, so you shoudl be able to trace the wires to the output connector straight to the transformer and it shoudl be obvious how to do it.

dave

[edanderson]

ah ha. so now i find this thread...

sounds like a bm5 stereo ribbon? if that is the case, the 5 pin DIN connector carries two balanced pair (one left, one right) and a ground. look at this schematic for the mic from stephensank.com:

http://www.thuntek.net/~bk11/bm6_dk(1).gif

and wire pins 1 and 3 to one XLR out and pins 4 and 5 to another XLR out. you should be good to go. note that the numbering on the DIN connector is not sequential. and if you need a DIN connector they are readily available for making MIDI cables and old style computer keyboard cables- though i've never found one with the B&O locking ring.

hope this helps.

ed

[swingdoc]

hi Ed, thanks a ton!!
Do I split the #2 pin ground, and run that to both grounds on the XLR's?
Mark

[edanderson]

since pin 2 basically just grounds the housing of the mic, you don't have to split it to both XLRs. as long as there is one good solid grounding connection from your preamp to the mic, it should be fine.

ed

[aurelialuz]

[]

[swingdoc]

Yah Alex,
it was on your recommendations to check out the B&O's.
I have a mono B&O mic into Sank right now for a re-ribboning.
I'd like to get this stereo one connected up and see how it sounds, but its likely to find its way to Dr. Sank as well.
Cant wait to get this stereo one onto drums for overheads.
thanks,
Mark