Page 2 - Thank you for purchasing a Niles Systems Integration Amplifier; TABLE OF CONTENTS
2 WWW.NILESAUDIO.COM Thank you for purchasing a Niles Systems Integration Amplifier ® , one of the most flexible and convenient amplifiers ever offered. Like all Niles products, your new amplifier is built to the highest standards of quality control and reliability. With proper installation and oper...
Page 3 - NILES AUDIO CORPORATION; Channel, BridgaBle Power amPlifiers; ImpORTANT SAFETy INSTRUCTIONS
3 NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992 2 Channel, BridgaBle Power amPlifiers ImpORTANT SAFETy INSTRUCTIONS 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with a dry ...
Page 4 - family. They are designed
4 WWW.NILESAUDIO.COM INTROdUCTION BRIdGABLE pOwER AmpLIFIERS SI- SI- SI- The Niles SI-250, the Niles SI-2100 and the Niles SI-2150 are members of the award-winning Niles Systems Integration Amplifier ® family. They are designed for home theaters and whole house audio systems requiring high power. Th...
Page 5 - FEATURES ANd BENEFITS; REAL wORLd pOwER; FREEdOm; FROm; CROSSTALk; FREEdOm FROm FAN NOISE
5 NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992 2 Channel, BridgaBle Power amPlifiers FEATURES ANd BENEFITS REAL wORLd pOwER The SI-250, the SI-2100 and the SI-2150 deliver 50 watts, 100 watts, and 150 watts per channel at 8 ohms and 100 watts, 220 watts, 270 watts per channel at 4 ohms ...
Page 7 - INSTALLATION CONSIdERATIONS; pLACEmENT; Figure 1
7 NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992 2 Channel, BridgaBle Power amPlifiers INSTALLATION CONSIdERATIONS pLACEmENT Place the Niles System Integration Amplifier ® on a flat level surface like a table or shelf. It should be placed upright so that its weight rests on the four attac...
Page 8 - The Niles System Integration Amplifier
8 WWW.NILESAUDIO.COM INSTALLATION CONSIdERATIONS TURN-ON mOdES The Niles System Integration Amplifier ® draws more current than a preamplifier’s switched AC outlet can safely supply. Also, your preamplifier may “thump” at dangerous volumes if the amplifier is already on when the preamp turns on. It ...
Page 9 - BRIdGEd mOdE
9 NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992 2 Channel, BridgaBle Power amPlifiers INSTALLATION CONSIdERATIONS BRIdGEd mOdE The Niles System Integration Amplifier ® bridged mode switch allows you to create a more powerful amplifier by combining both channels into one (8 ohm minimum). ...
Page 10 - CABLE ANd wIRE; TECh TIp; Wire size is expressed by its AWG (American
10 WWW.NILESAUDIO.COM INSTALLATION CONSIdERATIONS CABLE ANd wIRE It will be easier to reconfigure or troubleshoot your system in the future if you label the cables and wires for their destination or source, rather than which terminal of the Niles System Integration Amplifier ® they are connected to....
Page 11 - FRONT ANd REAR pANEL dETAILS
11 NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992 2 Channel, BridgaBle Power amPlifiers FRONT ANd REAR pANEL dETAILS S I - 2 5 0 S y s t e m s I n t e g r a t i o n A m p l i f i e r ® Front panel “Master Power” switch turns off the entire amplifier, including the Turn-On circuitry. S I -...
Page 13 - INSTALLATION; SETTING ThE TURN-ON mOdE SwITCh; STEP; Slide the switch with; To conserve energy set the TURN ON mode to
13 NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992 2 Channel, BridgaBle Power amPlifiers INSTALLATION SETTING ThE TURN-ON mOdE SwITCh The Niles System Integration Amplifier ® has three turn-on modes. Select which mode you desire by sliding the mode switch. See Installation Considerations o...
Page 14 - SpEAkER wIRE CONNECTIONS
14 WWW.NILESAUDIO.COM INSTALLATION SpEAkER wIRE CONNECTIONS CAuTIoN! All speaker wire connections must be made with the amplifier off. CAuTIoN! Avoid even a single strand of wire touching the chassis or another connector. STEP DESCRIPTION 1. Label all wires. If you label the wires for their destinat...
Page 15 - LINE LEvEL AUdIO INpUT
15 NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992 2 Channel, BridgaBle Power amPlifiers INSTALLATION LINE LEvEL AUdIO INpUT CAuTIoN! The amplifier must be off whenever you make changes to the input connections. CASCAdE AUdIO OUTpUTS The “Cascade Audio Outputs” enable you to connect anothe...
Page 16 - AC pOwER pLUG
16 WWW.NILESAUDIO.COM INSTALLATION AC pOwER pLUG CAuTIoN! Typically a preamp/receiver’s switched outlet is not rated for a power amplifier. The SI- 250, the SI-2100 and the SI-2150 draw 200 watts, 300 watts, and 400 watts maximum from an AC wall outlet respectively. Use a dedicated AC wall outlet al...
Page 17 - OpERATION; pOwER SwITCh
17 NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992 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 s...
Page 19 - TROUBLEShOOTING GUIdE
19 NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992 2 Channel, BridgaBle Power amPlifiers TROUBLEShOOTING GUIdE Symptom Possible Causes and Test Procedure Hum from the speakers Check for faulty cables, faulty source material, an ungrounded phono system or a defective component. Amp will not...
Page 20 - SpECIFICATIONS
20 WWW.NILESAUDIO.COM SI-250 SI-2100 SI-2150 Design Principle Fully discrete, high current bridgeable stereo amplifier Digital, high current bridgeable stereo amplifier Digital, high current bridgeable stereo amplifier Continuous Average Power Output 50 watts RMS per channel into 8 Ohms, 100 watts R...
Page 21 - CUStOmEr SErvICE HOUrS; p r o d u c t su g g est i o ns@ni l es a u d i o.c o m
21 NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992 2 Channel, BridgaBle Power amPlifiers 1-8 0 0 - BU Y- H I FI (289- 4 4 3 4) BY PHONE (IN USA) CUStOmEr SErvICE HOUrS 8:0 0 A M t o 5:3 0 PM P T 6:0 0 A M t o 4:0 0 PM P T tECHNICAl SUPPOrt HOUrS w w w.ni l es a u d i o.c o m ON tHE wEB EmA...
Page 22 - LImITEd wARRANTy
22 WWW.NILESAUDIO.COM LImITEd wARRANTy Niles Audio Corporation (“NILES”) warrants to the original retail purchaser only that this product will be free of manufacturing defects in material and workmanship for the following periods and subject to the limitations and exclusions set forth below: Lifetim...
Page 23 - NOTES
23 NILES AUDIO CORPORATION – 1-800-BUY-HIFI – 1-760-710-0992 2 Channel, BridgaBle Power amPlifiers NOTES
Page 24 - 6 9 0 C o r p o r a t e C i r c l e , P e t a l u m a , C A 9 4 9 5 4
© 2012 Core Brands, llC. All rights reser ved. Niles and the Niles logos are registered trademarks of Core Brands, llC. All other trademarks are the property of their respective owners. We reser ve the right to change specifications, descriptions and prices without notice. The technical and other in...
