One thing to mention is polarity of the output of the console, if its XLR you may need phase reverse cable (an XLR cable that swaps pin 2 with pin 3) so that your sound board patch is in phase with your room mics. Out of phase board mix with your room mics can result in a real loss of bottom end in your recordings but it can also do other things as well.
Thanks Chris. That thought hadn't occurred to me but makes sense.
First time I'll be using those adaptors will most likely be a post-mix matrix because the board in the venue (an old movie theater) is stage left and I'll be trying to get the mics deeper into the room. Even if I do run the mics AND board feed into my multi-track unit, I can invert the phase on the mic feeds if need be after the fact (pre mixdown).
But big thanks for bringing up an issue that hadn't crossed my mind.
No problem. Its always overlooked part of sound patches. Always try and get the make and model of the soundboard as well as where you patched in, Aux out, main out, control room out, Matrix out, ect, so you can look it up at the console company's web site and to be sure that everything is the same polarity. That's what I would do, Its very hard because mic inputs on every known console out there, is pin 2 (+) pin 3 (- ) pin 1 ground.
But there is absolutely no standard what so ever for console outputs! unless its a unbalanced out, where the tip will always be + and the barrel will always be - the only way to tell is with a phase checker, or contacting the company that made the console in question. Soundcraft a well know leader in mixing consoles, They had problems with the early ones because they did no know unless you had a serial number ( even then they sometimes could not figure it out) because they changed it so many times lol. Its nuts..
Recording devices for the most part are pin 2 hot pin 3 cold pin 1 ground. so this is where the problems start.
Remember that polarity is an absolute and the best way to get a good recording is to get it right at the venue not in post. Because there is a difference between doing things in the digital domain and doing things in the analog domain when it comes to polarity.