I've just ordered parts to make myself the 16x2 summing box from Peterson Goodwyn's DIY site (http://www.diyrecordingequipment.com/4203/how-to-build-a-diy-passive-summing-box/). I've just found out, though, that the crosstalk will increase if some of the inputs don't have active circuits attached (e.g. hooking up two 8 channel DAs with one of them turned off). Given the resistor values I'm using (6.8K for the inputs, 182 for the outputs) and the fact that I'll be using a standard mic pre to make up the gain (either a FMR RNP or two API Classic 312s), is there something (other than building an active summer) that I can do to keep the crosstalk as low as possible???
Also, how much will the crosstalk increase for every pair of inputs that remain unconnected?
P.S. I'm a musician, not an engineer, so forgive my naiveté! I'm also a newbie, so if there's a thread that covers this, please point me to it. I've done some searching but may have missed it.
Also, how much will the crosstalk increase for every pair of inputs that remain unconnected?
P.S. I'm a musician, not an engineer, so forgive my naiveté! I'm also a newbie, so if there's a thread that covers this, please point me to it. I've done some searching but may have missed it.
