M133 MICRO AMP DESCRIPTION • Up to +26dB of gain • Perfect for switching between guitars with unmatched output • Great for use with long signal chains, or anytime signal drop-off is a problem CONTROLS GAIN knob controls overall amount of signal boost FOOTSWITCH toggles effect on/ bypass (red LED indicates on) POWER The MXR Micro Amp is powered by one 9-volt battery (remove bottom plate to install), a 9-volt AC adapter such as the Dunlop ECB003/ ECB003E or a power supply such as the DC Brick™.