RCF PR4092 - Rear Panel and Connections; Rear Panel Controls and Inputs; Rear Panel Outputs

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ENGLISH
OUTPUT SELECTOR (CHIME, INPUTS 1÷9). Makes it possible to direct the signal to
output “A” only, to output “B” only, or to both. Note: the priority function (inputs 1, 2
and 3) is active only at the output selected. When a priority is active, it could happen that
sources assigned to one output are present at lower level on the other output as well.
SIGNAL-PRESENCE INDICATOR (GREEN LED; INPUTS 1÷9). Lights up in the presence
of an input signal.
MIC / LINE LEVEL SELECTOR (INPUTS 2÷9). The selector has 3 positions:
- MIC: microphone signal with high-pass lter inserted (cut-off frequency: 300 Hz)
- MIC: microphone signal
- LINE: high-level signal (CD player, cassette deck, radio tuner).
Note:
- the “MIC” positions activate the PHANTOM feed to the microphone inputs (with XLR
connector), to which it is advisable to connect only microphones (electret, condenser, etc.)
that need this feed. If dynamic microphones are used, it is necessary for the cable to be
balanced in order to avoid possible malfunctioning and/or damage to the microphones.
Alternatively, the PHANTOM feed can be removed from some of the inputs by using the
internal jumpers (JP3 - JP6).
- the level selector also enables the connector (to be used) of the 6÷9 inputs: XLR in the
2 MIC positions: double RCA in the “LINE” position.
“PRIORITY” BUTTON (INPUTS 2 AND 3). When pressed, it enables the vocal-activation
priority of inputs 2 and 3 (note: the presence of any signal at inputs 2 and 3 activates the
priority function).
AUDIO-OUTPUT CONTROLS. Each output has the following controls:
- a volume control;
- a bass-tone control (100 Hz);
- a treble-tone control (10 kHz);
- a VU METER consisting of 5 LEDs (corresponding to these levels: -20 dBu, -10 dBu,
-3 dBu, 0 dBu, “peak”).
“POWER” ON/OFF BUTTON WITH LIGHT (GREEN LED) “ON”. Turns the equipment on
and off.
POWER-SUPPLY CABLE PLUG (230-115 V AC) WITH FUSE. For connecting the power
cable supplied.
24-V DC FEED CLAMPS. The 2 clamps make it possible to power the preamplier with
direct current from an external source (batteries, for example). If the usual power supply is
unavailable or suddenly cuts out, the equipment can be powered with direct current, thus
ensuring continuous operation.
MAIN AUDIO OUTPUTS “A” AND “B”. Balanced audio outputs with XLR connectors.
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REAR
PANEL
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