Boost (Clean Boost / Line Driver)
The MXR CAE Boost/Line Driver (MC401) is an analog clean Boost / Line Driver pedal based on the Custom Audio Electronics 20dB boost, with Gain/Boost (up to +20dB) controls.
| Category | Boost (Clean Boost / Line Driver) |
| Circuit / based on | Custom Audio Electronics 20dB boost |
| Signal | Analog |
| Controls | Gain/Boost (up to +20dB) |
| Footswitches | 1 |
| I/O | 1/4" input, 1/4" output (mono) |
| Power | 9V DC (also 18V via ECB004 for increased headroom) |
| Battery power | Yes |
| Enclosure | standard |