RCF HDL10-A 1400W Dual 8" Active Line Array Module (Black) - Manual (Page 7)

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ENGLISH
MAIN XLR INPUT (BAL/UNBAL). The system accept male XLR/Jack input connectors
with line level signals from a mixing console or other signal source.
LINK XLR OUTPUT. The output XLR male connector provides a loop trough for
speakers daisy chaining.
VOLUME. Controls the volume of the power amplifier. The control ranges from -
(maximum attenuation) to the MAX level ∞ (maximum output).
POWER INDICATOR. Power on indicator. When the power cord is connected and
the power switch is turned on this indicator lights green.
SIGNAL INDICATOR. The signal indicator lights green if there is signal present on
the main XLR input.
LIMITER INDICATOR. The amplifier has a built in limiter circuit to prevent clipping
of the amplifiers or overdriving the transducers. When the peak clipping circuit is active
the LED blinks orange. It is okay if the limit LED blinks occasionally. If the LED blinks
frequently or lights continuously, turn down the signal level. The amplifier has a built
in RMS limiter. If the RMS limiter is active the LED lights red. The RMS limiter has the
purpose to prevent damages the transducers. The speaker shall never be used with
the limit indicator red, continuous operation with the RMS protection active can cause
damages to the speaker.
HF. The switch gives the possibility to set high frequencies correction depending on
target distance (air absorption correction):
- NEAR (used for pole mount applications or near field)
- FAR (for farthest field).
CLUSTER. The combination of the 2 switches gives 4 possibilities of mid low
frequencies correction depending on cluster size.
- 2-3 modules (used for pole mount applications ground stacking)
- 4-6 modules (small flown systems)
- 7-9 modules (medium flown systems)
- 10-16 modules (maximum flown configuration).
HIGH CURVING. The switch gives the extra possibility to boost mid frequencies
depending on a high curving cluster configuration of few pieces.
- OFF (not active correction)
- ON (for high curving arrays of few pieces HDL20-A or HDL10-A).
INDOOR. The switch gives the extra possibility to set low frequencies correction
depending on a indoor/outdoor use, in order to compensate room reverberation on
lows.
- OFF (not active correction)
- ON (correction for reverberant indoor rooms).
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