Bird Lau
3 Things About The DI Box | The Pedal Diary


DI box = Direct box
DI = stands for “Direct Inject”
Functioned to take an unbalanced, high-impedance signal
and convert it to a balanced, low-impedance signal
Also longer cable runs also eliminate unwanted noise

Type of the DI box
Active DI
-includes a preamp
-require a power source
Passive DI
-Good at handling high-output instruments
-Don’t need to be powered

Another features of DI
Pad
-A switchable attenuator to decreases the incoming signal
Thru
-This allows the unprocessed signal splits out
to sent to an amplifier for onstage monitoring

Ground Lift
-Lets user disconnect the Pin 1 on the XLR jack of the DI box,
preventing current from flowing between the DI
and the microphone preamplifier along the shielding,
thereby breaking the ground loop and eliminating that noise.