The ProD2 is a 2-channel passive direct box designed to connect stereo keyboards or high output instruments to a PA system or home recording setup without noise or distortion. At the heart of the design are two high-quality Eclipse ET-DB2 transformers. These deliver performance from 20Hz to 20kHz with less than 1.5dB deviation above 18kHz and can handle huge signal levels without distortion. Unlike active circuits that overload when the signal exceeds the rail voltage, transformers saturate. This creates a pleasing effect that naturally rounds out the tone and acts as a subtle limiter, which is particularly advantageous when pairing the ProD2 with digital pianos, samplers and drum machines that can produce excessive dynamics. Transformers are particularly adept at eliminating hum and buzz caused by ground loops.