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SRM-Flex: Top Panel Features continued...
17. Master Volume Knob
The endless rotary master volume knob allows
you to adjust the overall output level. This gives
you the ultimate feeling of power and control over
the sound level sent to your audience. Adjust this
control carefully, with your good eye on the meters
to check against overloading, and your good ear
to the levels to make sure your audience (if any)
is happy.
The main meters will display the output signal level
as the knob is turned and return to bouncing meters
after five seconds of inactivity.
While the knobs may rotate endlessly,
there are high and low parameters. In other
words, you can't keep cranking the output
level past max – there is no "beyond max".
It also will not wrap around back to off and vice-versa.
• Output Level: – dB (off) to +10.0 dB (max)
This knob also acts like a momentary switch
with three possibilities:
• Push down and release to see the current output
level.
• Push down and release three times quickly to zero
out the current output level (thereby killing the sound)!
• Push down and hold for two seconds to switch
between bouncing meters (peak meter mode)
and a solid bar (volume level).
18. Main Meters
These meters are made up of a single horizontal
row of 17 green LEDs and are used to gauge the input
and output levels, as well as display the reverb send
levels and EQ boost / cut.
You can get a good mix with peaks flashing anywhere
shy of the far right 3-4 LED bars. SRM-Flex will sound
muddy and distorted if all meter LEDs are illuminated
constantly. Turn down the master volume knob.
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).
14
SRM-Flex Portable Column PA System
19. Limiter LED
SRM-Flex has a built-in limiter that helps to prevent
the amplifier outputs from clipping or overdriving
the transducers. The limiter indicator illuminates red
when the limiter is activated. It's okay for it to blink
red occasionally, but if it blinks frequently or lights
continuously, turn down the volume knob(s) until
it only blinks occasionally.
Excessive limiting may lead to overheating,
which in turn trips the thermal protect
circuitry and interrupts the performance.
See 'Thermal Protection' on the next page for more
information.
20. Mix Out
This is a balanced male XLR-type connector that
produces a mono-summed post-DSP mix – after
channel EQ and reverb, but pre-main fader, speaker
EQ and limiting – from all input jacks. Use it to connect
a Mackie loudspeaker off of the same signal source.
It is wired as follows, according to standards
specified by the AES (Audio Engineering Society):
Balanced XLR Output Connector
Pin 1 – Shield (ground)
Pin 2 – Positive (+ or hot)
Pin 3 – Negative (– or cold)
SHIELD
1
3
2
COLD
HOT
SHIELD
1
3
COLD
2
HOT
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