RCF TT22A, Quick Manual, Page: 4 / 12

ENGLISH
MAIN XLR INPUT (BAL/UNBAL).
The system accept female XLR input connectors and 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.
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).
SIDE/FLOOR COUPLING.
The system provides linear equalisation in case of free space or pole mount
application. In case of floor/wall or coupled application (2 speakers per side)
this switch equalise the curve response reducing the low-mids range.
90 HZ HIGH-PASS.
Provides 24 dB/octave high-pass filtering for application in conjunction with
subwoofers.
POWER INDICATOR.
When the power cord is connected and the power switch is turned on this
indicator lights green.
REAR PANEL FEATURES AND CONTROLS
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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.
SIGNAL INDICATOR.
The signal indicator lights green if there is signal present on the main XLR input.
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.
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.
AC POWERCON RECEPTACLE.
RCF TT+ series uses a POWERCON locking 3-pole AC mains. Always use the
specific power cord provided in the package.
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.
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