Niles Audio SI-1650 Stereo Amplifier User Manual


 
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INSTALLATION CONSIDERATIONS
TURN-ON MODES
Automating the turn-on of your SI-1650 is one of the easiest steps when
installing it in a distributed system. However, do not plug the main power
cord into the switched AC outlet of your preamplier or receiver. The high
power design of the SI-1650 requires large amounts of current from its AC
power source. Additionally, it is always recommended to activate the system
preamplier/receiver before turning on your SI-1650 in order to prevent system
“turn-on thumps”.
In order to address these important needs, the SI-1650 has three special turn-
on modes that let you turn the amplier on only when it is needed. Use the
Conguration and Setup Tool to access and select one of these three Turn-On
options.
Important! The Front Panel Power Switch must be in the ON (switch in)
position for any of the three turn-on options to function (refer to page 36
for more information concerning the Front Panel Power Switch).
Constant – The auto turn-on circuitry is off. The front panel master power
switch operates the amplier. In is “On”, Out is “Off”.
Audio Sense – The master switch on the front panel must be in the “On”
position. The amplier is off when there is no audio signal present at any of the
audio inputs, 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, all the amplier channels will turn on. Once the audio signal stops, the
sensing circuit waits three minutes, then turns all amplier channels off.
FIGURE 18