Owner’ s manual, Fw loop out, Phones level – MACKIE U.420 User Manual
Page 15: Main level, Fairy dust, Owner’s manual, Fa ir y dust
15
Owner’s Manual
Owner’
s Manual
21. FW LOOP OUT
In addition to a mix of channels 1 to 4, the FireWire
output to the computer can contain any FireWire input,
if this switch is down. (The mains and phones are not
affected by the switch, and always provide a full mix of
channels 1 to 4 and the 2-channel FireWire inputs.)
• If disengaged (out), the FireWire output to
your computer will just be the main mix from
channels 1 to 4. This is a good position for
overdubbing, as any playback from your com-
puter can be played in your main speakers and
headphones, while you play along with a guitar
and record only the guitar via FireWire.
• If pressed in, the FireWire output to your
computer will be the mix of channels 1 to 4,
including any FireWire audio coming in from
your computer. This is a good position to record
live, where your complete main performance
(including any input from the computer) can
be recorded via FireWire.
22. PHONES LEVEL
This controls the volume of the headphones output
from off to maximum gain.
Warning: The headphone amplifier is de-
signed to drive any standard headphones to a
very loud level. It can cause permanent hear-
ing damage. Even intermediate levels may be painfully
loud with some headphones. Be careful! Always start
with the phones level control turned all the way down
before connecting headphones or making any connec-
tions. Keep it down until you’ve put on the headphones,
and turn it down first whenever you play a new source or
instrument.
23. MAIN LEVEL
This big handy knob adjusts the main mix output level
at the main outputs [6]. Use it wisely to turn up the
tunes in your main speakers, or to turn it down when-
ever you think the room could benefit from a little less
noise from your band.
The meters will also be affected by this control. It
does not adjust the levels to your headphones, FireWire
outputs, or the aux outputs.
24. FAIRY DUST
Sometimes, all you need is a little bit of
fairy dust to make your recording climb to
number 1 in the charts. If you really-really
believe in this imaginary control, adjust it
carefully to sprinkle golden fairy dust throughout your
recording session. Fame and fortune are just a wing beat
away.
FA
IR
Y DUST
O
O
MAX
LEVEL
U
O
O
MAX
U
O
O
MAX
LEVEL
U
O
O
MAX
U
1
2
FireWire input from computer
3
4
MAX
FW IN
O
O
LOOP
OUT
PRESS IN TO MAKE THIS CONNECTION
FireWire recording channels 1–4 and FireWire in
FireWire recording channels 1–4 only
O
O
MAX
LEVEL
U
O
O
MAX
U
O
O
MAX
LEVEL
U
O
O
MAX
U
1
2
3
4
O
O
MAX
LEVEL
U
O
O
MAX
U
O
O
MAX
LEVEL
U
O
O
MAX
U
1
2
FireWire input from computer
3
4
MAX
FW IN
O
O
LOOP
OUT
PRESS IN TO MAKE THIS CONNECTION
FireWire recording channels 1–4 and FireWire in
FireWire recording channels 1–4 only
O
O
MAX
LEVEL
U
O
O
MAX
U
O
O
MAX
LEVEL
U
O
O
MAX
U
1
2
3
4