Niles Audio SI-2150, SI-2100, SI-250 manual Operation

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2 Channel, Bridgable Power Amplifiers

Operation

Power Switch

The front panel switch is a master or “vacation” power switch. No matter which turn-on mode you have selected, the master power switch will turn off all circuitry including the sensing circuitry. If you will not be using the amplifier for an extended period of time, turn the master power switch “Off” (push button switch out). When you would like to return to normal operation, turn the switch “On” (push button switch in).

Important Notes: Equipment is not completely disconnected from main power source when power switch is in the “OFF” position.

Power LED

The power LED indicates that the AC cord is plugged into a working AC power receptacle and that the power switch is in the “On” position.

Bicolor Status LED

The bicolor Status LED illuminates “green” when the amplifier circuitry has been turned on by the Turn-On circuits, and illuminates “red” to indicate activation of the amplifier’s built-in protection circuitry due to either a fault in the wiring or the speaker, or with the Niles System Integration Amplifier® itself.

Level Adjustment Screws

The rear panel level adjustment screws allow you to adjust the level of the Niles System Integration Amplifier® relative to other amplifiers in your system. Use

a 1/8” slotted screwdriver to adjust the screws. If the Niles System Integration Amplifier® is the only amplifier in your system, leave the screws at their factory default setting (12:00 position).

Cleaning and Maintenance

The internal parts of the Niles System Integration Amplifier® are electronic and require no maintenance. Once a year it is appropriate to twist the RCA connectors on each input to remove corrosion and improve conductivity. You can clean the amplifier with soft cloth or paper towel dampened with water or a mild detergent. Do not use any spray-type, abrasive cleaners on the amplifier.

NILES AUDIO CORPORATION – 1-800-BUY-HIFI1-760-710-0992

 

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Contents SI- SI- SI Congratulations FCC Required Text Important Safety InstructionsIntroduction Bridgable Power AmplifiersReal World Power Features and BenefitsTransparent Sound Freedom from Fan NoiseBridged Mode Status Display for TroubleshootingLifetime Connections Turn-On ModesPlacement Installation ConsiderationsTurn-On Mode Multiple Speaker Loads Installation ConsiderationsTech TIP Cable and WireTo the amplifier Amplifiers Mm mini-jack for Voltage input Front and Rear Panel DetailsBicolor Status LED illuminates Want to control InstallationOutput maintaining proper polarity FG00933Speaker Wire Connections Bare WireRCA plugs into the amplifier’s jacks Use audio patch cables with RCALine Level Audio Input Cascade Audio OutputsAC Power Plug Plug the male end of the AC powerOperation One channel No sound onContinuity Another cable that is known to be goodAmp will not turn on Hum from the speakersSignal to Noise Average PowerWeight Design PrincipleBUY-HIFI Remedies for Breach of Warranty Limited WarrantyChannel, Bridgable Power Amplifiers 0 0 B U Y H I F I w w w . n i l e s a u d i o . c o m