9If you are still showing peaking on the VU meter, but the gain switch isturned down all the way, engage the Pad button to reduce gain by 20dB.This will not affect the timbre of the audio, just the level.1.5.4 ¼” Instrument Input JackThe ¼” Instrument Input Jack isspecifically designed to allow users toplug a guitar, bass or keyboard into thefront of the preamp. The signal fromthis jack does not pass though the inputtransformer, but rather is unbalanced.You must engage the ¼” Button in order to use the front ¼” jack.1.5.5 ¼” ButtonThis button switches the input of the mic pre to the front ¼” input anddisengages the rear mic input.1.5.6 Pad ButtonThe Pad button is a 20dB attenuator usefully when thegain switch is in its lowest position and the peakindicator (*) is still being lit. Most commonly the Padbutton will be required for extremely dynamic sourceslike drums and percussion, or extremely loud sourceslike electric guitar through a large amplifier.1.5.7 +48 ButtonThis button controls the 48 volt phantom powerwhich is used to power the onboard electronics incondenser microphones or active direct injection(DI) boxes.