The D.I. box is modeled on a highly regarded American D.I. unit.
Boost knob: Set the input gain of the D.I. box.
HF Cut button: Turn on a highpass filter. This is used to reduce noise.
Tone knob: Set the tonal color of the D.I. box. Each number represents a preset EQ curve.
1: An EQ curve with a -6 dB scoop from 100 Hz to 10 kHz, most pronounced around 800 Hz. Suitable for acoustic and string instruments, electric bass, and keyboards.
2: An EQ curve with a very pronounced -24 dB v-shaped notch from 100 Hz to 10 kHz, centered around 800 Hz. Suitable for electric bass guitar.
3: An EQ curve with a -3 dB scoop from 100 Hz to 10 kHz, most pronounced around 800 to 1200 Hz. Suitable for acoustics, strings, electric and bass guitar, and keyboards.
4: An EQ curve with a -3 dB scoop from 1 kHz to 10 kHz, most pronounced around 8 kHz. Frequencies between 60 Hz and 1 kHz have a slight boost of 1 or 2 dB above unity. Frequencies above 10 kHz have a +3 dB boost. Suitable for acoustics, strings, electric and bass guitars, and keyboards.
5: A sloped EQ curve that ramps up from -24 dB at 10 Hz to + 3 dB at around 900 Hz. Suitable for acoustic and electric guitar.
6: A sloped EQ curve that ramps up from -24 dB at 10 Hz to +3 dB at around 900 Hz. The signal rolls off by approximately 6 dB between 10 and 20 kHz. Suitable for electric and bass guitar.
Tone on/off button: Turn on the tone control.
Amp button: View the Amp interface and parameters.
Blend slider: Drag to hear the D.I. box alone or in parallel with the amplifier.
Direct Box button: View the Direct Box interface and parameters.
Drag the Blend slider to the far right.
Drag the Blend slider to any central position—not to the far right or the far left.