10
1.5.8 Ø Phase Button
The Ø button flips the phase of the audio signal by
swapping pin 2 and pin 3 of XLR connectors or the
Tip and Ring of
¼
” TRS connectors.
Most often this 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 sounding, 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.
1.6 Signal Flow: Patching Into and Out of Your Mic Pre IV
1.6.1 Microphone to Mic Pre One to Audio Interface or Mixer
Basic Cables Needed:
(1) Microphone Type Cable (Female XLR to Male XLR)
(1) Female XLR (or Male
¼
” TRS) to Male
¼
” TRS Balanced Cable
Patch from the microphone to the mic input on the Mic Pre One using the
female XLR to male XLR microphone cable. Patch out of one of the line
outputs to a line input on your audio interface or console using either a
female XLR to
¼
” TRS cable or a female XLR to male XLR cable.
1.6.2 Via a Patch Bay
In most professional setups, processors are racked and then installed as
part of a patch bay system. This makes it easier to make connections,
because you don’t need to go behind the rack to plug and unplug cables.
Patch bays are usually made up of modules with 2 jacks in the front, one
over the other, and two jacks (or solder terminals, or DB25, etc) on the
back. For the sake of this manual, we’ll assume you’re using a
¼
” TRS
patch bay with jacks on the front and back.
