You're right - the ES-57's would be a great choice - I own three of them myself at home. I think I'll just buy a three pack and have them sent here for the amps.
Actually - I think your standard MSH omni would be perfect for choir overheads....I know you've recently changed your lineup to newer models, but I've used your older MSH-2's and MSH-1's on choirs with good results...a spaced pair or quad always does the trick. At some point when I get back, I'm going to have to buy a pair of your newer models...my little studio just loves Naiant products!
Not wanting to tangentialize the thread - can we talk offline about the design/schematic for your older MDI "direct box connector"? I own two of them, and a friend back home will NOT quit pestering me about obtaining one (or something like it).
Back to topic - thanks again for any help...everything is getting used regularly and is VERY much appreciated. If you need anything - quotes/pictures/etc. for your site and your support for the troops, please ask!
Take care,
Jay
Offline? Ah heck, here's the schemo. For a personal design, I would omit R7. It's there for two reasons: to pad the signal, and to increase headroom. Those are related. The problem is it increases input noise (since you are padding signal before the transistor). The better way to pad the signal is AFTER the transistor, but the MDI had another design compromise: the thing was freakin' small, man! There was only about 1/2" to build the circuit inside the connector, and it was done point to point! So there wasn't room for a pad on the output. Sure, you could use an inline pad, but now you've got something like 8 inches of connector (guitar in-->MDI-->pad-->mic out)
Also, I moved all of my products to balanced in/balanced out, so the MDI didn't fit anymore. I likey the transformer approach instead--no noise to speak of; no power required. You give up a bit of bass, but pick up much more headroom than any phantom-powered active device can offer.
I have a newer buffer circuit I use in the mics now--well, the X-M, specifically. That uses a low-current opamp, and offers tremendously high headroom (still not as high as the trafo though). I could build a direct box using that circuit, but it would be big and expensive, so . . .
How about the X-X for choir? Just let me know how long the drop from XLR needs to me.
I'd also like to do something on the site to promote money/gear donations . . . can you set up a Paypal Donate button or something? I can host that on a page along with a picture of your stage and maybe a quick note about what you're doing, hopefully that will trigger some more funds
