Usb Input Level / 53. Usb Thru; Usb Out Switch; Track Return Tape / Usb Switch; Track Return Level / 57. Tape Level - Mackie ProFX8v2 Owner's Manual

Main & Subs Mix, USB Out, 2-Track Return, and more!
52. USB Input Level
[ProFX8v2, ProFX12v2]
This control adjusts the signal level of the two
channels coming in from the computer, via the
USB port, relative to the mix of the other channels.
Adjust it carefully to achieve the desired mix with
the other channels.
The USB input from audio software could
be individual instrument tracks, a mix of tracks,
or processed tracks.
52
53
59
ProFX8v2 • ProFX12v2
53. USB Thru
[ProFX8v2, ProFX12v2]
In addition to a mix of the other channels, the USB
output to the computer may contain any input from
the computer if this switch is down. (This switch only
affects the output to the computer, not the headphones
or main mix.)
• If disengaged (out), the USB output to the
computer will just be the main mix. This is a
good position for overdubbing, as any playback
from the computer may be played through the
main speakers and headphones, while playing
along with a guitar and recording only the
guitar via USB. This is also good for live
recording as a safeguard against feedback.
Here, the USB level knob should also be down.
• If pressed in, the USB output to the computer
will be the main mix, including any audio
coming in from the computer. This is a good
position to record live performances where
playback of audio from the computer is also
part of the performance.
22
ProFX8v2 • ProFX12v2 • ProFX16v2 • ProFX22v2 • ProFX30v2
ON / OFF
58
FAN
MID
57
LOW HIGH
MON MAIN TEMP
˚ F
90˚
44 62
80˚
70˚
60˚
50˚

54. USB Out Switch

[ProFX16v2, ProFX22v2, ProFX30v2]
This switch allows flexibility on the recordable
signals. The default switch configuration (disengaged)
allows the main L/R mix to be recorded for convenient
stereo mixes of the show. Engaging the switch routes
subgroups 1-2 over the USB connection to your favorite
DAW software for an alternate 2-track recording.

55. 2-Track Return Tape / USB Switch

[ProFX16v2, ProFX22v2, ProFX30v2]
This determines if the 2-track return gets its
signal from the RCA "tape" inputs (switch disengaged)
or USB (switch engaged).
56. 2-Track Return Level
[ProFX16v2, ProFX22v2, ProFX30v2]
This knob controls the overall level to the mains of
the tape (RCA) or USB, depending on the position of
the 2-track return tape/USB switch. This knob's level
ranges from off, through unity (center detent position),
on up to 15 dB of extra gain (fully clockwise).
57. Tape Level
[ProFX8v2, ProFX12v2]
This knob controls the input level of signals
entering the tape inputs. It is conveniently located
close to the break switch so all channels may be
quickly muted while bringing up the background
music while the band is taking a break.

58. Break Switch and LED

This important "take-a-break" switch quickly mutes
all the microphones and line-level inputs to the main
outs, cr outs and phones when the band is between sets.
This will prevent protestors or rogue karaoke singers
from storming the stage at the interval.
The monitor send and FX send are not affected.
If there is no sound coming out of the system, be sure
to check this switch first.
It is possible to play the stereo RCA tape inputs in
the main stereo mix or play audio coming in from the
computer via the USB inputs. For example, a soothing
CD may be played while the band is off stage.
The adjacent break LED [ProFX16v2,
ProFX22v2 and ProFX30v2] will illuminate
as a reminder that the channels are muted.