DIY Mic Pre Kits, Lunchbox Mic Preamp Kits, Power Supply Kits

I adjusted the power supply to 18.75 volts. I hope that's low enough not to fry the IO module. The preamp is only getting about 17.20 volts when maxed but I figure it will be a good compromise. I set the VU meter where the 3rd LED just comes on at .775 volts. It works out pretty well since the 5th one just lights up at 5 volts. Thanks for the pointers.