The OMNITRONIC ISO-23 MK2 is a one-channel stereo, three-band frequency isolator for DJ and studio use. It provides dedicated low-, mid- and high-frequency boost and kill-cut controls, a bypass switch, and ALPS RK27 potentiometers. Frequency ranges are 20–300 Hz, 300 Hz–4 kHz, and 4–20 kHz. Balanced and unbalanced line I/O use XLR and RCA connectors. The unit occupies 1 U in a 19-inch rack and consumes 12 W.