reduces the input sensitivity by 15dB for louder instruments such as an active bass guitar or keyboard so that they can be used without distortion.
unbalanced hi-Z input connection for your guitar or bass.
direct output connects the instrument to the on-stage amplifier.
sends the lo-Z balanced output signal to the PA system or audio workstation.
lifts pin-1 at XLR to reduce hum and buzz caused by ground loops.