Niles SI-275 Export Скачать руководство пользователя страница 20 | Manualshive

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Niles Audio

Corporation

www.nilesaudio.com

12331 S.W. 130 Street

Miami, Florida 33186

Tel: (305) 238-4373

Fax: (305) 238-0185

©2005 Niles Audio Corporation. All rights reserved. Niles, the Niles logos, Systems
Integration Amplifier and Blending High Fidelity and Architecture are registered trade-
marks of Niles Audio Corporation. All other trademarks are the property of their
respective owners. Printed in Malaysia 03/05 DS00219CMY

DS00219CMY-SI-275.qxp 6/7/05 3:18 PM Page 19

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Содержание SI-275 Export

Страница 1: ...I N S T A L L A T I O N O P E R A T I O N G U I D E B L E N D I N G H I G H F I D E L I T Y A N D A R C H I T E C T U R E Systems Integration Amplifier ...

Страница 2: ...HE RISK OF ELECTRICAL SHOCK DO NOT REMOVE COVER NO USER SERVICE ABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL CAUTION The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to pe...

Страница 3: ...stems Integration Amplifiers to solve the problems 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 SI 275 brings extremely high current power to a custom installed A V System in a remarkably convenient way INTRODUCTION 2 SI 275 Systems Integration Stereo ...

Страница 4: ...our music Current For Reactive Loads The high current design of the SI 275 assures that even unusual and reactive loads are handled with aplomb A massive toroidal transformer with two separate windings for each of the power supplies supplies more than ample current to your system Freedom from Fan Noise The oversized heat sinks inside the SI 275 allow the amplifier to stay cool even when operating ...

Страница 5: ...m occurs the amplifier shuts itself off When conditions return to nor mal regular operation resumes Status Display for Troubleshooting LEDs 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 12Volt DC output is provided whenever the amplifier is on allowing you to opera...

Страница 6: ...ocated 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 SI 275 CAUTION When using low impedance speaker loads less than 8 ohms Normal Mode refer to Figure 2 for proper placement The SI 275 is equipped with an internal transformer which generates a powerful magnetic field which could induce hum in a turntable particularly...

Страница 7: ...gnal stops the sensing circuit waits two minutes then turns the amplifier off 3 30 Volt AC DC Opto Isolated Voltage Trigger The master switch on the front panel must be in the On position The amplifier is off when there is no 3 30V AC or DC voltage detected at the trigger input Once the sensing circuitry detects a volt age the amplifier is turned on Once the voltage stops the sensing circuit insta...

Страница 8: ...m 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 c...

Страница 9: ...all performance Your Niles dealer can recom mend the proper cable The SI 275 connects to your speakers using 2 conductor speaker wire 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 SI 275 will accommodate up to 12 gauge wire Larger sizes can be accommodated by attaching banana plugs to the wire ...

Страница 10: ...e amplifier including the Turn On circuitry The red Protect LED indicates the amp has shut down because there is a fault in the speaker the wiring or with the SI 275 itself Main Inputs enable you to route a stereo line level source to the SI 275 Cascade Outputs of the main input enable you to daisy chain multiple amplifiers 3 5mm Mini Plug socket for 12v DC Control output Turn On Mode switch 3 5 M...

Страница 11: ...ctions IEC receptacle for AC power cord NOTE AC receptacle must be easily accessible FRONT AND REAR PANEL DETAILS 10 ut a e Level Adjustment screws enable you to preset the maximum system volume or match levels with another amplifier ...

Страница 12: ... amplifier is active or on When the amplifier turns off the 12 Volt signal is off Page 11 Setting The Turn On Mode Switch Page 11 Control Output Page 12 Speaker Wire Connections Page 12 Line Level Audio Inputs Page 13 Cascade Audio Outputs Page 14 AC Power plug STEP 1 Check the requirements of the device you want to control 2 Connect the 3 5mm Jack to the control output maintaining proper polarity...

Страница 13: ...t Dual banana plugs will fit the SI 275 bind ing posts STEP 1 Label all wires 2 Connect one stripped wire end or banana plug to the black terminal and one to the red terminal CAUTION Avoid even a single strand of wire touching the chassis or another connector DESCRIPTION If you label the wires for their destination rather than which terminal of the SI 275 they are connected to it will be easier to...

Страница 14: ...mplifier A single ADA 6 will allow you to daisy chain 5 amplifiers from each of its six outputs allowing 30 SI 275 power amplifiers to be fed from the same master preamplifier If your preamp has a vacuum tube output stage you must use a Niles ADA 6 to drive more than a single SI 275 STEP 1 Label all of the interconnecting cables for the sources they connect to 2 Connect the sources by inserting th...

Страница 15: ...e preamp receiver s switched outlet is not rated for a power amplifier DESCRIPTION Just like a computer or printer the SI 275 has an AC cord which unplugs either at the amp or at the wall for your convenience If you use a grounded power strip surge suppressor or extension cord verify that proper ground is maintained The SI 275 draws a maximum of approxi mately 700 watts from an AC wall outlet Use ...

Страница 16: ...and how the amplifier will turn on The Active LED indicates that the amplifier is operating Protection LED The front panel protection LED indicates that the amplifier has been shut down because of either a fault in the wiring or the speaker or with the SI 275 itself Level Adjustment Screws The front panel level adjustment screws allow you to adjust the level of the SI 275 relative to other amplifi...

Страница 17: ...rossing from the positive to the negative terminals at the back of the amplifier and or the speaker Short circuit or a break in the speaker wire Dis connect 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 s...

Страница 18: ...ounding in one room POSSIBLE CAUSES AND TEST PROCEDURE Check for faulty cables faulty source material an ungrounded phono system or a defective component AC power cord must be plugged into a working outlet Master power switch must be on The loudspeakers are wired out of phase Reverse the connections at the back of one speaker TROUBLESHOOTING GUIDE ...

Страница 19: ...at 4 ohms Input Impedance Approximately 15K ohms Input Sensitivity 985V for 8Ω rated output Overall Voltage Gain 30 dB Frequency Response Bandwidth Limited from 10 Hz to 100 kHz Total Harmonic Distortion 8 Ohms 05 THD from 20 Hz to 20 kHz full rated power 4 Ohms 06 THD from 20 Hz to 20 kHz full rated power Overall Dimensions 17 wide 4 high including feet 13 1 8 deep Weight 21 lbs ...

Страница 20: ... 238 0185 2005 Niles Audio Corporation All rights reserved Niles the Niles logos Systems Integration Amplifier and Blending High Fidelity and Architecture are registered trade marks of Niles Audio Corporation All other trademarks are the property of their respective owners Printed in Malaysia 03 05 DS00219CMY ...

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