Re: XLR In & Out EQ/Reverb with Phantom Power

Posted by vid.sicious on Mar 26, 2016; 12:15am
URL: http://guitar-fx-layouts.238.s1.nabble.com/XLR-In-Out-EQ-Reverb-with-Phantom-Power-tp29256p29266.html

I'm not an expert by any means but from my knowledge, using circuits design for guitar pedals you'd face quite some drop in volume. You'd probably have to transform the balanced signal into line to make them work properly. Any kind of DI is capable of it. You'd also need quite a box to accommodate all of this stuff. But I guess it makes more sense having all in one big box rather than several sperate units.
This guy made a circuit which will modify your balanced xlr signal into line which you can confidently feed into any guitar circuits you want without loss in dB. http://www.paulinthelab.com/2012/04/balenced-to-line-microphone-preamp.html?m=1

For your project I think you'd need 2 of those circuits going into the mixer. But then you'd need 3 power supplies: 15v, 9v and the other 48v (for phantom power), unless you figure out a way how to step up from 15v to 48v and then 15v down to 9v or any other way. Check the comments in the link I posted, there are other people facing same issues. Its quite a complex idea due to different voltage requirements...