Eden WTDI Direct Box/Preamp, bass guitar- and acoustic guitar preamp, true bybass, balanced and unbalanced output (XLR/jack), controls: 1x gain, 1x enhance, 1x compressor, 1x master, 3-band EQ (+/-15 dB), bass boost-switch (Fletcher-Munson curve), midshift switch (flip between 550 Hz and 2,2 kHz), groundlift, dimensions (w x h x d): 12 x 6 x 9cm , incl. original power supply (12-18V AC/DC)