Onyx P
remium Analog Mix
er with Multi-
Tr
ack USB
Onyx Premium Analog Mixer with Multi-Track USB
18
Onyx Front Panel Features
Master Section
35. Power LED
This LED will illuminate green when the mixer
is turned on, as a reminder of how on it really is.
If it is not on, then it is off, and the mixer becomes
a rather nice weight for keeping your morning
newspaper from blowing away in the wind.
If it does not turn on, make sure the power cord
is correctly inserted at both ends, the local AC mains
supply is active and the power switch is on.
Phantom Power
Most modern professional condenser mics require
48V phantom power, which lets the mixer send
low-current DC voltage to the mic’s electronics
through the same wires that carry audio. (Semi-pro
condenser mics often have batteries to accomplish
the same thing.) “Phantom” owes its name to an ability
to be “unseen” by dynamic mics (Shure SM57/SM58,
for instance), which don’t need external power and
aren’t affected by it anyway.
The Onyx mixer’s phantom power is globally
controlled by the phantom power switch
(meaning that phantom power for all mic
inputs is turned on and off together.)
Never plug single-ended (unbalanced)
micro phones or ribbon microphones into
the mic input jacks if phantom power is on.
Do not plug instrument outputs into the mic input jacks
with phantom power on unless you know for certain it
is safe to do so. Be sure the main mix fader is turned
down when connecting microphones to the mic inputs
when phantom power is turned on to prevent pops from
getting through to the speakers.
36. 48V Phantom Power Switch and LED
Press this switch in if a microphone requires
phantom power. (Always check the position
of this switch before connecting microphones.)
The accompanying LED will illuminate red to indicate
that phantom power is active. This is a global switch
that affects all mic channels’ XLR jacks at once.
37. Main Meters
These peak meters are made up of two columns
of twelve LEDs, with three colors to indicate different
ranges of signal level, traffic light style. They range
from –30 at the bottom, to 0 in the middle, to OL at
the top.
When a channel is soloed (in PFL), the right meter
shows no reading, and the left meter shows the level
of that channel’s signal level, pre-fader.
When not in solo mode, you can get a good mix with
peaks flashing anywhere between –20 and +10 dB on
the meters. Remember, audio meters are just tools to
help assure you that your levels are “in the ballpark.”
You don’t have to stare at them (unless you want to).
MON 2
48V
PHONES
PHANTOM
POWER
POWER
MON 1
dB
10
5
U
5
10
20
30
40
50
60
PHONES
MAX
FX
dB
10
5
U
5
10
20
30
40
50
60
L-R
dB
10
5
U
5
10
20
30
40
50
60
L-R
dB
10
5
U
5
10
20
30
40
50
60
L-R
OL
0dB=0dBu
MAIN
METERS
15
10
6
3
0
2
4
7
10
20
30
L
R
RUDE SOLO
AFL
PFL
SOLO
SOLO
MASTER
MAX
CONTROL
ROOM
MAX
MAIN
TO
MON 1
TO
MON 2
OFF
MAX
OFF
MAX
PRESS TO SELECT
HOLD FOR SETTINGS
STUDIO COMMAND
STEREO RECORDING
AND PLAYBACK
SD
MUTE
MUTE
MUTE
MUTE
SND
55
58
44
56
57
54
38
36
35
37
41
42
51
46
45
49
43
40
39
48
47
52
50
53
