Niles SI-250 - Manual

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CALL 1-800-BUY-HIFI – 760.710.0992 – www.nilesaudio.com

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Real World Power

The SI-250 delivers 50 watts per

channel at 8 ohms and 100 watts per channel at 4
ohms. You’ll get tremendous bass and dynamics from
every pair of speakers connected.

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Turn-On Modes

The Niles SI-250 Amplifier features

three turn-on modes: 1. Music Sense, 2. External
Voltage Trigger, 3. Manual Turn-On via the front panel
switch. You can configure the Niles SI-250 Amplifier
to interface with any kind of system and have the unit
automatically turn on.

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Bridged Mode

The Niles SI-250 Amplifier can be

operated in a bridged mono configuration. In this
configuration, the SI-250 delivers 225 watts. Bridged
mode is perfect for subwoofer, rock speakers or any
applications requiring high power output.

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Independent Level Controls

Each amplifier channel

features an independent level control enabling precise
volume matching to the rest of the system. These level
controls can also limit volume to prevent abuse of the
system.

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Freedom from Fan Noise

The oversized heat sinks

inside the System Integration Amplifiers allow the
amplifier circuitry to stay cool even when operating
into low impedance loads without the distracting noise
created when using fan-cooled amplifiers.

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Current for Reactive Loads

The high current design

of the Niles SI-250 Amplifier assures that even unusual
and reactive loads are handled with ease. Cutting edge
digital power supplies provide more than ample current
to your system.

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Freedom from Cross-Talk

The Niles SI-250 Amplifier

is powered via its own independent power supply.
This increases the isolation between channels and
eliminates cross talk, guaranteeing you absolute silence
as the backdrop to your music.

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Control Output

A 12 Volt DC output is provided

whenever the amplifier is on, allowing you to operate
voltage triggered devices like motorized screens and
curtains.

Fe atures & beneFits

Offering the classic Niles stability that you’ve come to know and trust, the powerful SI-250 brings extremely high current
power to a custom installed A/V System in a remarkably convenient way. Featuring audio circuitry constructed using the
finest materials available, including 1% metal film resistors, high quality capacitors and oversized heat sinks that ensure
proper cooling without the need for a noisy fan. This 2-channel amplifier provides 50W per channel (225W when bridged
for higher output applications) and independent level control, making installation easier and more straight forward than
ever before.

SI-

SYSTEMS INTEGRATION AMPLIFIER

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2-CHANNEL BridgEABLE POWEr AMPLiFiEr