Profile: Geoffrey Daking & Co., Inc. specializes in offering audio equipments. The Mic-Pre™ one is a single channel mic preamp features a DI-style aluminum enclosure. The high pass filter in this preamp is a powerful tool. The filter allows the recordist to eliminate unwanted low frequency trash before it enters the signal chain without affecting the program material. Mic-Pre™ IV offers four channels class A preamplifiers in a single rack space unit with outboard power supply. Configured for four microphone inputs or four line inputs from XLR/TRS Neutrik™ combo jacks on the back, plus four line inputs (+10 to -50) or 1/4 hi-z instrument inputs on the front, this preamp utilizes all discrete class A circuitry with transformer-balanced inputs and outputs. .