Use the Bass Amp Designer Direct Box in Logic Pro for iPad

The Direct Box is modeled on a highly regarded American D.I. unit.

Direct Box parameters

Gain knob and field: Set the input gain of the Direct Box.
Tone knob and field: Set the tonal color of the Direct 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.
HF Cut button: Turn on a highpass filter. This is used to reduce noise.
Tone On/Off button: Turn on the tone control.
Amp/DI Mix knob: Drag to hear the Direct Box signal alone or in parallel with the amplifier.

In the Logic Pro Bass Amp Designer Output section, set the Amp/DI Mix knob to the full right position.

In the Logic Pro Bass Amp Designer Output section, set the Amp/DI Mix knob to any central position—not to the full right or the full left position.

Download this guide: PDF

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