Audio I/O (formerly Audio Interface II) allows you to effectively interface your Eurorack modular system to the balanced line level world (+4 dBu). You can send and return to rack mount/desktop fx units, patch to external line level instruments like synths and drum machines, interface to a DAW and much more. Feautures 2 x Balanced TRS 1/4″ to Eurorack modular level input paths 2 x Eurorack modular level signals to Balanced TRS 1/4″ output paths 4 x six stage led VU meter to monitor all inputs and outputs simultaneously Input path has up to 20 dB of gain, which allows you to patch in low level consumer level signals and boost them. Output path steps a nominal Eurorack level (10 Vpp) down to +4 dBu with up to +6 dB gain NOTE: Current spec of 120mA @ +12V is for all 24 LEDs lit. Nominal current draw is 50mA @ +12V.