Loud enough to make your ears bleed.
Headphone amps are NOT created equal.
Collaborator takes a stereo feed and outputs 4 powerful headphone feeds
The COLLABORATOR is a FOUR-channel Analog High Definition headphone amp with four individual-level controls, one for each set of headphones.
Each headphone output has its own power amp, with isolated power to each amp to minimize crosstalk between outputs.
The Collaborator has a built-in TalkBack Mic, that can be mixed into each of the headphones, allowing "collaboration" between artists without having to remove
the headphones to talk. The TB Mic can also be turned on with a standard keyboard-type sustain foot switch.