to use the front
¼
” jack.
1.5.5
¼
” Button
This button switches the input of the mic pre to the
front
¼
” input and disengages the rear mic input.
1.5.6 Pad Button
The Pad button is a 20dB attenuator useful when the gain
knob is in its lowest position and the peak indicator (*) is
still being lit. Most commonly the Pad button will be
required for extremely dynamic sources like drums and
percussion, or extremely loud sources like electric guitar
through a large amplifier.
1.5.7 +48 Button
This button controls the 48 volt phantom power which
is used to power the onboard electronics in condenser
microphones or active direct injection (DI) boxes.
1.5.8 Ø Button
The Ø button flips the phase of the audio signal by
swapping pin 2 and pin 3 of the XLR jack of the
microphone input. Often it is used when two microphones
are being used on the same source, like the top and
bottom microphones for a snare drum. Often the phase is
flipped on the bottom microphone so that the two
microphone signals will be in phase. When two
microphones are out of phase and mixed together the
sound often is hollow, with some frequencies boosted and
some frequencies cut. Phase flip is also commonly used
when two microphones are used on a single guitar
speaker cabinet.
