The IMP 2 from Whirlwind is a rugged built, single channel, passive direct box. The unit converts a line or instrument level unbalanced signal to a low impedance microphone level balanced signal. Direct boxes are often referred to as "DI" boxes. This stands for "Direct Injection" as their main purpose is to convert unbalanced and/or high impedance instrument signals into a format suitable for direct connection to a mixing console - without the use of a microphone.

• 1/4" parallel wired in/out jacks
• Ground Lift switches to help eliminate hum and buzz