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5
2 SIDE COUPLING. The system provides linear equalisation in case of a single speaker in floor monitoring position. In case of
coupled application (2 speakers side by side) this switch equalise the curve response reducing the low-mid and low frequency
range.
This switch can be used even for a single speaker when a very high intelligibility is required from the monitor.
3 INPUT SENSITIVITY. Controls the overall signal level at the input to the power amplifier. The control ranges from +∞
(maximum attenuation) to the –2 dBu sensitivity (maximum input gain). The centre detent is +4 dBu (nominal level required to
drive the amplifier at maximum power).
4 LIMIT INDICATOR. The amplifier has a built in limiter circuit to prevent clipping of the amplifiers or overdriving the
transducers. When the soft 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.
5 SIGNAL INDICATOR. The signal indicator lights green if there is signal present on the main XLR input.
6 STATUS INDICATOR. The status indicator lights orange if the main amplifier or power supply is in faulty condition. If the
status indicator lights orange, switch off the amplifier and call the closest RCF SERVICE CENTRE.
7 POWER INDICATOR. Power on indicator. When the power cord is connected and the power switch is turned on this indicator
lights green.
8 AC POWERCON RECEPTACLE. RCF TT+ series uses a POWERCON locking 3-pole AC mains. Always use the specific power
cord provided in the package.
9 POWER MAIN SWITCH. The power switch turns the AC power ON and OFF. Make sure that the sensitivity is set to +∞ when
you turn on the speaker.
10 GROUND.
11 LINK XLR OUTPUT. The output XLR male connector provides a loop trough for speakers daisy chaining.
12 AC POWERCON LINK RECEPTACLE. Use this receptacle to link one or more units. Always make sure that the maximum
current requirement does not exceed the maximum admitted POWERCON current. In case of doubt call the closest RCF
SERVICE CENTRE.
13 GROUND.
CONNECTIONS
The XLR connectors use the following AES standard:
PIN 1 = GROUND (SHIELD)
PIN 2 = HOT (+)
PIN 3 = COLD (-)
BEFORE TURNING ON THE SPEAKER
At this point you can connect the power supply cable and the signal cable, but before turning on the speaker make sure that the
volume control is at the minimum level (even on the mixer output). It is important that the mixer is already ON before turning on the
speaker. This will avoid damage to the speakers and noisy “bumps” due to turning on parts on the audio chain. It is a good practice
to always turn on speakers at last and turn them off immediately after the show.
Now you can turn ON the speaker and adjust the volume control to a proper level.
WARNING: Always make sure that the maximum current requirement does not exceed the maximum admitted POWERCON current.
In case of doubt call the closest RCF SERVICE CENTRE.
VOLTAGE SETUP (RESERVED TO THE RCF SERVICE CENTRE)
TT25-SMA
230 Volt, 50 Hz SETUP : FUSE VALUE T 6.3 A H 250 V
115 Volt, 60 Hz SETUP : FUSE VALUE T 10 A H 250 V
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