Check the listing for details. Whirlwind IMP2 Passive Direct Box with TRHL Transformer. Condition: New. Listed at 92.00 USD. An economical Direct Box that converts a line or instrument level unbalanced signal to a low impedance balanced signal. The input is Hi-Z bridging and the output is provided with a ground lift switch. Utilizes the TRHL transformer. Built rugged on the inside and outside, this is the world famous DI found in pro systems everywhere. The IMP 2 converts a line or instrument level unbalanced signal to a low impedance mic level balanced signal. Whirlwind IMP 2 Features: 1/4" parallel wired in/out jacks Ground Lift switch to help isolate hum and buzz Uses Whirlwind's TRHL transformer that's riveted, notglued, to the chassis It's the ideal direct box for anyone requiring professional quality and durability in an economical package. Whirlwind IMP 2 Specifications: Part #: IM2 Passive direct box Impedance Ratio (input to output): 133:1 Input Impedance: 20k Ohms Output Impedance: 150 Ohms Frequency Response: 20Hz-20kHz ±1dB Level Change: (input to output): -20dB