Bass Amp Designer amp controls in MainStage
The amp parameters include controls for channel selection, input filter and gain, and master output. The Gain knob is located to the left in the knobs section and the Master knob and Output slider are located at the far right.
Amplifier parameters
Channel I/II switch: Switch between channel I and channel II.
Channel I is active, with a gain of 0 dB.
Channel II is passive, with a gain of -15 dB.
Bright switch: Switch between normal and bright modes. In the bright position, highs and upper mids are added to the tone.
Note: The increased mid and high range may lead to a perceived low end roll-off. Use the Bass EQ knob if you feel the bottom end needs a boost.
Gain knob: Set the amount of preamplification applied to the input signal. The Gain knob affects amp models differently.
Master knob: Set the output volume of the amplifier signal sent to the cabinet. Increasing the Master level typically produces a compressed and saturated sound, resulting in a more distorted and louder signal.
Note: If you choose Direct PowerAmp from the Cabinet pop-up menu, the output signal is routed directly to the Amp/Direct Box Blend fader. However, if you choose Direct PreAmp from the Cabinet pop-up menu, the Master knob acts as a pre-amp master gain control before the output signal is routed to the Amp/Direct Box Blend fader.
Output slider: Set the final output level of Bass Amp Designer.