This premium direct box converts an unbalanced line, instrument or speaker level signal to low impedance balanced mic level.
Features include:
1/4" parallel wired in/out jacks
Ground Lift switch to help eliminate hum and buzz
30dB pad switch for selecting between line/instrument or speaker level input signals
Switchable high cut filter to eliminate amplifier noise
Uses Whirlwind's TRHL-M transformer with metal shield that's riveted, not glued, to the chassis
Aesthetics
Flat Black. Classic Metal. Always in fashion.
Techno Babble you can impress your friends with:
Direct boxes are often referred to as “DI” boxes. This stands for “Direct Injection” as their main purpose is to convert instrument signals into a format suitable for direct connection to a mixing console - without the use of a microphone.
A DI serves several basic functions
1. It converts a high impedance signal to a low impedance signal (although it will also accept a low impedance signal from a preamp, keyboard, active pickup or other electronic device).
2. It converts an unbalanced signal to balanced.
3. It reduces a strong instrument or line level signal (and sometimes even speaker level signal) to a mic level signal suitable for connection to the mic input of a mixing console.
4. It isolates electronic equipment on stage from the mixing console, which can help eliminate interference and noise caused by DC interaction or ground loops.
The Director is Whirlwind’s premium passive DI. In addition to the features found on the IMP 2, the Director features a special metal shield around the transformer (TRHL-M), a low pass filter switch that helps eliminate hiss from noisy sources and a 30dB pad switch that allows it to be connected directly to speaker level signals without overloading.
Specs
Input Impedance: 20k Ohms
Output Impedance: 150 Ohms
Frequency Response: 20Hz-20kHz ±1dB
Level Change (input to output): -20dB (pad out), -50dB (pad in)
