Mackie Spike User Manual page 27

USB: The signal from Tracktion arrives via USB, and is sent directly to your
monitors, headphones, and SPDIF output. If the MIX knob is set to USB,
you will only hear the output from Tracktion (or other audio software).
Note: For details of using the MIX knob, please see page 59.
MONITOR knob
7
This adjusts the level of the rear panel Monitor analog outputs. It does not af-
fect the headphone or S/PDIF output levels. Use this wisely to gently increase
or decrease the levels going to your active monitors or amplifi er/passive-moni-
tor combo.
Note: Keep this knob turned down each time you turn on your sys-
tem, and then increase it to a safe listening volume.
PHONES knob and
8
Note: Make sure the PHONES knob is turned fully down before plug-
ging in your stereo headphones. This will protect your hearing and
prevent any loud surprises.
The headphone signals are the same as the Monitor output signals, except the
level is controlled by the PHONES knob, not the MONITOR knob. (The Moni-
tor outputs and the headphones output are both affected by the MIX knob.)
The headphone jack accepts 1/4" TRS stereo plugs. If your headphones have
a 1/8" mini-plug, you will need a 1/8" to 1/4" stereo adaptor, commonly sold in
electronics and audio stores.
HEADPHONE jack
9
-30 0 OL
GAIN 1
MIN MAX
48V
-30 0 OL
GAIN 2
MIN MAX
MIX
DIR USB
MONITOR
7
MIN MAX
PHONES
8
MIN MAX
9
User's
27
Guide