Niles Audio SI-2100 Stereo Amplifier User Manual


 
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NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992
2 Channel, BridgaBle Power amPlifiers
INSTALLATION CONSIdERATIONS
BRIdGEd mOdE
The Niles System Integration Amplier
®
bridged mode switch allows you to create
a more powerful amplier by combining both channels into one (8 ohm minimum).
Stereo mode is the factory default setting.
In the bridged mode, connect the speakers to the left red positive terminal and
the right red positive terminal. In the bridged mode the right channel’s red terminal
becomes positive and the left channel’s red terminal becomes negative.
DO NOT USE THE BLACK NEGATIVE (-) TERMINALS. THE SIGNAL IS AT THE RED
POSITIVE (+) TERMINALS ONLY.
The line level input signal must connect to the left channel input of the amplier
when using bridged mode.
mULTIpLE SpEAkER LOAdS
The Niles System Integration Amplier
®
is stable into very low impedance loads.
This means you can safely operate three pairs of 8 ohm speakers (a 2.67 ohm load)
directly connected to the amplier. Note that the System Integration Amplier
®
does
not have on/off speaker switching built in. When the amplier is on, so are all of the
speakers.
Niles makes a number of different speaker selection and impedance matching
systems. Speaker selection systems allow each pair of speakers to be turned on
and off from your equipment location (or even via remote control). That way, you
know that the speakers in the bedroom are off so you can avoid waking a sleeping
spouse! These speaker selectors provide an easy way to terminate all of the wires
for more than three pairs. Testing and troubleshooting a new system is much easier
with the individual room labels and on/off switches of a Niles speaker selection
system. Additionally, Niles speaker selection systems offer impedance matching
features which will allow you to connect up to ten pairs of speakers to your Niles
System Integration Amplier
®
.