Vermona ReTubeVerb, All Tube Spring Reverb, Hall-spiral with three double springs, Equalizer (removable from signal chain): Bass: approx. 80 Hz,, Middle: approx. 200 Hz, treble: approx. 1 kHz, Tubes: 2 x ECC 83, 1 x ECC 81, 1 x EM 84, Inputs: XLR, jack, Outputs: XLR (EQ off), jack, Includes rack bracket,