USL CM-8E - Manual (Page 25)

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2. Volume control for the front panel speaker.
3. Processor/Amplifier select switch. When processor is selected, the front panel speaker
and the web stream play the processor audio output of the selected channels and
bands. The VU indicates the relative level of the same audio. When amplifier is
selected, these each play the audio from the amplifier outputs (Vmon). This button
also determines whether the processor or amplifier is driving the web bar graphs.
4. VU audio level indicator. Displays the approximate audio level of the selected channels
and bands. See section 6.6 for more details on the VU indication.
5. Headphone jack. Plug monaural or stereo headphones into this jack. The speaker is
muted when the headphones are plugged in. The front panel volume control adjusts
the headphone volume. Do not plug test equipment into this jack that may ground any
of the headphone connections (including the connector sleeve).
6. Speaker. The selected audio channels and bands are heard through this speaker.
7. Power switch and power indicator. The power must be on for the CM-8E to operate.
However, even when the power is off, audio from the processor is passed through to
the amplifiers.
7.1 In-Booth Operation
The CM-8E operates very much like a traditional booth monitor. Pressing a front panel button
selects one or more audio channels to be listened to. You can listen to the audio at both the
output of the processor and the output of the amplifiers (using the Vmon return from the
amplifiers). If the screen channels have crossovers, you can listen to the combined audio (both
high and low bands), and the individual bands. When no crossovers are present, pressing a
button toggles that channel between on and off. When crossovers are present, pressing the
button cycles through an off- full range – low band – high band – off sequence. Similarly, if
more than one LFE amplifier is present, the LFE amplifier outputs can be sequence through
when the amplifiers are selected (instead of the processor). Finally, the buttons used to select
the right surround, left rear surround, and right rear surround can also be used to select the
spare, HI, and VI-N inputs. The button sequences through one input, then the other, then both,
before returning to off. The LEDs above the buttons indicate which audio channels are selected.
The CM-8E includes an internal speaker, volume control, and headphone jack. Adjust the
volume control to the desired level on the speaker or headphones. Headphones with a ¼ inch
monaural or stereo plug can be plugged into the headphone jack. Do not plug test equipment
or anything that may ground one of the headphone connections (including the sleeve) into the
headphone jack, as this could damage the power amplifier.
The front panel VU indicator provides an approximate indication of the sound level of the
selected audio channels.
If an external power amplifier has been connected to the line out terminals of the CM-8E, the
channel select buttons determine which audio is heard out of this amplifier. The volume
control has no effect on the line out signal.