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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 another amplifier to 
your preamplifier output. The connectors are gold-plated RCA phono jacks. 
Connect them to another amplifier’s inputs with a standard audio patch cable. 
The outputs are not buffered; if you wish to daisy-chain more than 5 Niles 
System Integration Amplifier

®

 amplifiers you will need a Niles AVDA-3 buffered 

distribution amplifier. A single AVDA-3 will allow you to daisy-chain 5 amplifiers 
from each of its three outputs, allowing for as many as 30 Niles System 
Integration Amplifier

®

 models to be fed from the same master preamplifier. If 

your preamp has a vacuum tube output stage, you must use a Niles AVDA-3 to 
drive more than a single Niles System Integration Amplifier

®

.

STEP

DESCRIPTION

1.  Label all of the interconnecting cables 

for the sources they connect to.

Use audio patch cables with RCA 

phono plugs attached to the ends.

2.  Connect the sources by inserting the 

RCA plugs into the amplifier’s jacks.

Connect outputs from your sources 

to inputs on the amplifier. Never 

connect a source or preamplifier’s 

input (e.g., record inputs) to 

the inputs of your Niles System 

Integration Amplifier

®

.

9901253-Rev-A-SI-2150Manual.indd   15

6/8/12   9:43 AM

Summary of Contents for SI-2100

Page 1: ...A M P L I F I E R S I N S T A l l ati o n G u i d e SI SI SI 9901253 Rev A SI 2150Manual indd 1 6 8 12 9 43 AM ...

Page 2: ...ilt to the highest standards of quality control and reliability With proper installation and operation you ll enjoy years of trouble free use TABLE OF CONTENTS Introduction 4 Features and benefits 5 Installation Considerations 7 Front and rear panel details 11 Installation 13 Operation 17 Troubleshooting guide 18 Specifications 20 CONGRATULATIONS 9901253 Rev A SI 2150Manual indd 2 6 8 12 9 43 AM ...

Page 3: ...ply cord plug from the AC receptacle 17 The power supply cord sometimes referred to as the Mains Plug is used as the disconnect device and shall remain accessible and operable at all times 18 Do not expose batteries to excessive heat such as sunshine fire or the like 19 Open flame sources such as lighted candles should NOT be placed on the apparatus WARNING To reduce the risk of fire or electric s...

Page 4: ...roblems of interfacing with different brands and models of equipment different acoustic environments in different rooms and different kinds of applications home theater stereo and background music The Niles Systems Integration Amplifier family brings extremely high current power to a custom installed A V System in a remarkably convenient way This guide contains information for the proper use of th...

Page 5: ...s own independent power supply This increases the isolation between the two channels and eliminates cross talk guaranteeing you absolute silence as the backdrop to your music Current for Reactive Loads The high current design of the Niles System Integration Amplifiers assures that even unusual and reactive loads are handled with ease A massive toroidal transformer SI 250 and cutting edge digital p...

Page 6: ...l regular operation resumes Status Display for Troubleshooting LED indicators on the front panel indicate Power Active Status and a Protection Warning With a glance at the front panel a troubleshooter is quickly provided with key information 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 curta...

Page 7: ...all boxer fans to provide continuous air flow into and out of the cabinet see Figure 2 Place the Niles System Integration Amplifier so that there is at least 7 of free air space above the chassis If the amplifier is located on a carpeted surface place a board under the amplifier s feet Do not block the ventilation holes on the top and bottom of the Niles System Integration Amplifier CAUTION When u...

Page 8: ...plifier is turned on Once the Trigger voltage is turned off the sensing circuit instantly turns the amplifier off The amplifier is off when there is no 3 24V AC or DC voltage detected at the trigger input Voltage triggers can be supplied by Niles automated switchers some video projectors some surround sound processors or something as simple as a 12 volt AC wall adapter plugged into the switched ou...

Page 9: ...e loads This means you can safely operate three pairs of 8 ohm speakers a 2 67 ohm load directly connected to the amplifier Note that the System Integration Amplifier does not have on off speaker switching built in When the amplifier 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 speak...

Page 10: ...re For most applications we recommend you use 16 or 18 gauge wire For wiring runs longer than 80 feet we recommend 14 gauge wire The binding posts of the Niles System Integration Amplifier will accommodate up to 12 gauge wire Larger sizes can be accommodated by attaching banana plugs to the wire Note that the binding posts accept dual banana or single banana connectors SPE AKER 6 L L R R AM PLI FI...

Page 11: ...on is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation This Class B digital apparatus complies with Canadian ICES 003 Cet appareil numérique de la classe B est conforme à la norme NMB 003 du Canada Main Inputs enable you to route a stereo line le...

Page 12: ... amplifier s built in protection circuitry 100 120V 220 240V 50 60Hz 600W CLASS 2 WIRING LEFT RIGHT Niles Audio Carlsbad California USA Designed and Engineered in the U S A Made in China T5AL 250V Serial No CAUTION replace only with same type and rating of fuse ATTENTION remplacer uniquement avec le même type et calibre du fusible Minimum impedance 2 66 Ω stereo mode 4 Ω bridged mode Binding posts...

Page 13: ...n controls etc The trigger voltage is present only when the amplifier is active or on When the amplifier turns off the 12 Volt signal is off STEP DESCRIPTION STEP DESCRIPTION 1 Check the requirements of the device you want to control The control output has a maximum current capability of 12V DC 150 mA 2 Connect the 3 5 mm Jack to the control output maintaining proper polarity tip Niles makes an ac...

Page 14: ...ulation so that at least two inches of each conductor are separated B Strip one half inch of insulation from the end of each conductor of the speaker wire C Attach banana plugs or twist the strands of wire together and insert them into the appropriate binding post Bare Wire Unscrew the red or black plastic knob insert the bare wire end into the opening and then tighten the knob until the wire is s...

Page 15: ...on amplifier A single AVDA 3 will allow you to daisy chain 5 amplifiers from each of its three outputs allowing for as many as 30 Niles System Integration Amplifier models to be fed from the same master preamplifier If your preamp has a vacuum tube output stage you must use a Niles AVDA 3 to drive more than a single Niles System Integration Amplifier STEP DESCRIPTION 1 Label all of the interconnec...

Page 16: ...ed AC power cord the supplied power cord is designed for 120V AC wall outlets or use an appropriate IEC AC power cord to match the electrical wall outlet you are using e g 240V AC into the IEC receptacle on the rear of the amplifier Just like a computer or printer the Niles System Integration Amplifier has an AC cord which unplugs either at the amp or at the wall for your convenience 2 Plug the ma...

Page 17: ...uitry 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 a...

Page 18: ...k of the amplifier and or the speaker Short circuit or a break in the speaker wire Disconnect the speaker wire at both ends separate the 2 conductors at both ends and test with a meter for a short circuit If there is no short connect the two conductors at one end and test with a meter for continuity Speaker is not working Connect the speaker to a channel that plays another speaker Audio cable to i...

Page 19: ...es faulty source material an ungrounded phono system or a defective component Amp will not turn on AC power cord must be plugged into a working outlet Master power switch must be on Bass sound is weak and the stereo image is phasey or blurry sounding in one room The loudspeakers are wired out of phase Reverse the connections at the back of one speaker 9901253 Rev A SI 2150Manual indd 19 6 8 12 9 4...

Page 20: ...nto 8 Ohms 400 wats RMS per channel into 8 Ohms 550 wats RMS per channel into 8 Ohms Frequency Response Bandwidth from 5 Hz to 25 kHz 0dB 3B Bandwidth from 5 Hz to 25 kHz 0dB 3B Bandwidth from 5 Hz to 25 kHz 0dB 3B Signal to Noise Ratio 20Hz to 20kHz unweighted 102 dB 20Hz to 20kHz unweighted 102 dB 20Hz to 20kHz unweighted 102 dB Total Harmonic Distortion 0 2 THD from 20 Hz to 20 kHz 0 2 THD from...

Page 21: ...IN USA Customer service hours 8 00 AM to 5 30 PM PT 6 00 AM to 4 00 PM PT Technical support hours www nilesaudio com on the web email technical support email for product suggestions productsuggestions nilesaudio com techsupport nilesaudio com BY PHONE OUTSIDE USA 1 760 710 0992 9901253 Rev A SI 2150Manual indd 21 6 8 12 9 43 AM ...

Page 22: ...f removing and transporting the product for warranty service evaluation or installation of any replacement product provided under this warranty This Warranty will be void if the Serial Number on the product has been removed tampered with or defaced the product was not purchased from an authorized dealer or reseller THE FOREGOING WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESSED AND IMPLI...

Page 23: ...23 NILES AUDIO CORPORATION 1 800 BUY HIFI 1 760 710 0992 2 Channel Bridgable Power Amplifiers Notes 9901253 Rev A SI 2150Manual indd 23 6 8 12 9 43 AM ...

Page 24: ...specifications descriptions and prices without notice The technical and other information contained herein is not intended to set forth all technical and other specifications Designed and engineered in the USA 9901253 Rev A 1 9 6 9 K e l l o g g A v e n u e C a r l s b a d C A 9 2 0 0 8 1 7 6 0 7 1 0 0 9 9 2 1 8 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 9901253 Rev A SI 2150Manual indd 24 ...

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