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INSTALLATION CONSIdERATIONS
TURN-ON mOdES
The Niles System Integration Amplier
®
draws more current than a preamplier’s
switched AC outlet can safely supply. Also, your preamplier may “thump” at
dangerous volumes if the amplier is already on when the preamp turns on. It is
usually best to turn the amplier on only when it is needed. The Turn-On Mode
selector switch gives you three options for turning the amplier on and off. Audio
sense is the factory default setting.
CONSTANT - The auto turn-on circuitry is off. The front panel master power
switch operates the amplier. In is “On”, out is “Off”.
AUDIO SENSE - The master switch on the front panel must be in the “On”
position. The amplier is off when there is no audio signal present at either the
left or the right input, but the sensing circuitry is on. The turn-on sensing circuitry
looks for a tiny amount of audio signal present at any of the audio inputs. If it
detects a signal, the amplier is turned on. Once the audio signal stops, the
sensing circuit waits two minutes, then turns the amplier off.
3-24 VOLT AC/DC OPTO-ISOLATED VOLTAGE TRIGGER - The Power switch
on the front panel must be in the “On” position for the voltage trigger to function.
When a Trigger Plug is inserted into the rear panel connector and the sensing
circuitry detects a voltage, the amplier is turned on. Once the Trigger voltage is
turned off, the sensing circuit instantly turns the amplier off. The amplier is off
when there is no 3-24V AC or DC voltage detected at the trigger input. Voltage
triggers can be supplied by Niles automated switchers, some video projectors,
some surround sound processors, or something as simple as a 12 volt AC wall
adapter plugged into the switched outlet of your stereo receiver. Linear DC wall
adapters are not recommended; the long discharge time of the DC adapter’s lter
capacitor will delay the turn-off of the amplier. Trigger sources must be 3-24VAC
or DC, 20mA or greater.
INSTALLATION CONSIdERATIONS
100-120V / 220-240V~
50 / 60Hz 600W
Systems
Integration
Amplif ier
®
TURN ON MODE
AUDIO SENSE
CONSTANT
3-30V
AC/DC
TRIGGER
INPUT
12V
CONTROL
OUT
L R
L
R
BUS
OUTPUT
FOR
BRIDGED
MODE
L
R
LEVELS
MAIN BUS
INPUT
STEREO
BRIDGED
CLASS 2 WIRING
LEFT RIGHT
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired
operation.
Niles Audio, Carlsbad, California, USA
Designed and Engineered in the U.S.A. Made in China
T5AL, 250V
Serial No.
CAUTION: replace only with same type and rating of fuse.
ATTENTION: remplacer uniquement avec le même type
et calibre du fusible.
Minimum impedance:
2.66 Ω (stereo mode)
4 Ω (bridged mode)