1
U
OO | +20 |
U
SOURCE
ALT
0dBu (.775 volts rms) at the rear output jacks. The
The meters are switched by the same circuits that switch the Control Room and Phones moni- tors. So whatever you are hearing in the monitors is what’s on the meters. Normally, that would be the main Left and Right bus outputs. If the Tape Monitor switch is pushed down, the meters (and the monitors) are connected to the Tape In jacks. (See the Tape Monitor switch note in the Monitoring section a little farther on.)
NOTE: The Control
Room fader does not affect
meter levels.
And remember, whenever
any solo button is pressed, the meters are not reading the main output bus level. When a Solo button is pressed, the monitors and the meters are connected to the solo buses for input level adjustment.
You should set your L/R levels for a reading in the middle of the meters, with occasional peaks reaching into the yellow +7 to +10 range. You should never have the levels loud enough to light the red OL LEDs, which are set at +20dBu, just
before clipping (+22dBu) to indicate
Ubus distortion.
OO +20 3 | STEREO AUX RETURNS |
U |
|
Return 3 control and circuitry.
This allows you to use Alt
It has such a long name that it hardly needs any explanation. When this switch is up, AUX Return 4 functions normally. When the switch is down, the AUX Return 4 is disconnected from the main Left and Right buses and is
This allows you to use wet monitor, listening with echo or delay without actually using the effect in the main Left and Right outputs, or to “play along” to a cue or click feed without having it go onto tape.
SOLO
When a Solo button is pressed, the soloed signals are sent to the meters and the solo buses, which are fed to the control room monitor and headphone circuits. The Solo control 
in the main Output section sets solo monitoring level. It has no effect on the levels on the meters or on any of the main, alternate or auxiliary buses.
Next to the Solo level control is the Rude
2 |
| AUX RETURN | OO +20 4 |
OO +20 | TO CONTROL | ||
| LEVEL | ROOM ONLY | LEVEL |
|
|
STEREO AUX RETURNS
U
The
Solo Light, as nasty an indicator as our Indicator Department could find without actually being dangerous. When it is blink- ing, something is soloed. Simplicity itself.
Furthermore, the
+
22 
CLIP
10 
7 
4 
2 
0 
2 
4 
7 
10 
20 
30
– 
40
OO +20
SOLO
OO
LEVEL
PHONES
TAPE
MONITOR
Left and Right buses. Each level control has a “U” detent and plenty of gain (+20dB) for any effect you use. Just like a channel strip input, any return can be used in mono by patching into the Left input only.
There are a
couple of Mackie bo-
nus switches in the AUX Return circuits:
channel(s) glow steadily to indicate
The 
and Phone 
monitoring outputs, each circuit with its own level control. Monitoring controls consist of the stereo Control Rm fader, the Phones level control (with a handy Phones jack just below it), and the Tape Monitor switch.
dB | dB |
10 | 10 |
55
UU
55
1010
1515
2020
30 | 30 |
40 | 40 |
OO | OO |
| LEFT RIGHT | CONTROL RM |
|
|
|
|
|
|
|
|
|
This switch works on the AUX Return 3. With the switch up, AUX Return 3 is just what it’s advertised to be: an AUX Return. When the Source Alt
Control Rm and Phone monitor outputs always share the same sources:
•The main Left and Right buses under normal conditions;
•The output of your tape recorder (or some other source patched into the Tape In jacks) when the Tape Monitor switch is pushed, or;
•The stereo solo buses whenever any Solo switch is pressed. The solo circuits override the Tape Monitor switch.
10