A combo jack takes an XLR microphone or a 1/4-inch instrument, selected by an internal DIP switch. Microphone signals pass through a Lundahl input transformer and a preamp with 20 to 80 dB of gain. Instrument signals skip the preamp and go to a JFET buffer instead.

Three 60 mm faders set repeats, delay volume and delay time from 80 ms to one second. The faders work like a small mixing desk for quick changes on stage. The footswitch sits above them to stay out of the way.

A transformer-isolated balanced XLR output feeds a mixing desk or interface directly. A separate Echo output carries only the delay, leaving the other outputs dry. Phantom power from a desk passes through to the microphone, and the preamp stays active in bypass. An internal switch chooses whether repeats trail off after bypass.