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GENERAL INFORMATION
Thank you for having chosen a PROEL product.
For years PROEL FLASH loudspeakers have provided thousands of users all around the world with the fi nest sound in
its class together with versa lity, portability and stylish design. Now the whole series has been renovated introducing
major upgrades in performance, features and design.
The STANDARD FLASH models now becomes V2 and are powered by brand new amplifi er modules combining the high
effi ciency of Class D output stages with the light-weight and compact size of Switch Mode Power Supply: this gives FLASH
V2 a massive punch and a consistent reserve of power while making them lighter and extremely portable. The built-in
2-channel mixer with independent LINE and MIC inputs and 2-band EQ can turn any FLASH V2 system into an instant PA
system. The use of carefully selected speakers, including a new high-defi ni on CELESTION compression driver, together
with a sophis cated ac ve signal processor and a dual clip limiter, provide an accurate acous c response and an amazing
sound pressure level with very low distor on.
FLASH12A INSTRUCTIONS (FIG. 1 / 2 / 3)
1. LINE IN (combo XLR-JACK input)
This is a female combo connector, which accepts a XLR or a JACK plug from almost any type of equipment with a
balanced or unbalanced outputs. The XLR input is wired as follows:
Pin 1 = shield or ground
Pin 2 = + posi ve or "hot"
Pin 3 = - nega ve or "cold"
The JACK input is wired as follows:
Tip = + posi ve or "hot"
Ring = - nega ve or "cold"
Sleeve = shield or ground
When connec ng an unbalanced signal, wire them as follows:
Pin2 / Tip = + posi ve or "hot"
Pin 1-3 / Sleeve = shield or ground
NOTE: whenever possible, use always balanced cables. Unbalanced lines may also be used but may result in noise over
long cable runs. In any case, avoid using a balanced cable for one channel and an unbalanced one for the other.
2. MIC IN (XLR input balanced)
This is a female XLR connector, which accepts a balanced microphone input from almost any type of Microphone. The
XLR input is wired as follows:
Pin 1 = shield or ground
Pin 2 = + posi ve or "hot"
Pin 3 = - nega ve or "cold"
3. MIX OUT (XLR output unbalanced)
These XLR connectors provide an unbalanced line-level signal that represent the mixed mic and line signal. Connect
these to the inputs of other powered speakers to make an array.
4. GND LIFT switch
This switch li the ground of the balanced audio inputs from the earth-ground of the amplifi er. If you have HUM noise
problem on one or more loudspeaker try to change the posi on of these switches (o en all up or all down for all the
amplifi ers in the system). Please note that to have an eff ect all cables must be balanced.
5. LINE LEVEL control
Rotary level control: it a enuates the level of the signal sent to the LINE IN input, the a enua on ranges from “0” fully
closed (the signal is completely a enuated) to “10” fully open, nominal level (the signal is not a enuated in any way,
so is fed to the internal amplifi er at the same level at which it arrives on input).
6. MIC GAIN control
The gain control adjusts the sensi vity of the mic input. There is the minimum gain with the knob all way down, ramping
up to maximum gain when rotated fully clockwise. This allows the signal from mic to be adjusted to op mal levels for
the fi rst speaker and consequently for all other speakers linked to the MIX OUT.
NOTE: LINE IN control must be full up for all other speakers.
7. LOW control
This control gives you up to 6 dB boost or cut at 90 Hz with a "SHELVING" curve shape. Use it to add or reduce the sound
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