Niles SI-2125 Instrucciones de funcionamiento originales

Blending HigH Fidelity and arcHitecture®

Systems Integration Amplifier

INSTALLATION & OPERATION GUIDE

CONGRATULATIONS!

Thank you for purchasing the Niles SI-2125, one of the most flexible and

convenient amplifiers ever offered. Like all Niles products, the SI-2125 is built 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 2

FEATURES AND BENEFITS 3

INSTALLATION CONSIDERATIONS 5

FRONT AND REAR PANEL DETAILS 9

INSTALLATION 11

OPERATION 15

TROUBLESHOOTING GUIDE 16

SPECIFICATIONS 18

CAUTION: TO REDUCE

THE RISK OF ELECTRICAL

SHOCK, DO NOTREMOVE

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 persons.

The exclamation point within an equivalent triangle is

intended to alert the user to the presence of important

operating and maintenance (servicing) instructions in the

literature accompanying the appliance.

CAUTION: TO PREVENT ELECTRICAL SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT

ATTENTION: POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE LAME LA PLUS LARGE DE LA FICHE

DANS LA BOURNE CORRESONDANTE DE LA PRISE ET POUSSER JUSQU’AU FOND

WARNING: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR

MOISTURE

INTRODUCTION

The SI-2125 is a member of the award-winning Niles Systems Integration

Amplifier family. It is designed for home theaters and whole house audio systems

requiring high power. Niles specifically created Systems 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, outdoor speakers and background music.

The SI-2125 brings extremely high- current power to a custom installed A/V

system in a remarkably convenient way.

INTRODUCTION

SI-2125

Systems Integration

Stereo Power Amplifier

FEATURES AND BENEFITS

Real World Power

The SI-2125 delivers 125 watts per channel at 8 ohms, 175 watts per channel at

4 ohms and 350 watts bridged at 8 ohms. You’ll get tremendous bass and dynamics

from every pair of speakers powered by an SI-2125.

Transparent Sound

The audio circuitry of the SI-2125 is constructed using the finest parts available;

including 1% metal film resistors, high quality capacitors, and oversized heat sinks.

All this attention to technical detail creates a sound that is clear and uncolored with

phenomenal imaging.

Freedom from Crosstalk

Each channel of the SI-2125 is powered via its 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 SI-2125 assures that even unusual and reactive loads

are handled with ease. A massive toroidal transformer with two separate windings for

each of the power supplies provides more than ample current to your system.

Freedom from Fan Noise

The oversized heat sinks inside the SI-2125 allow the amplifier to stay cool even when

operating into low impedance loads—without the noise of fan-cooled amplifiers.

Independent Level Controls

Each channel has its own independent level control enabling you to precisely

match the SI-2125 to the rest of your system. The level controls also enable you

to limit the volume, preventing abuse of the system.

Lifetime Connections

The SI-2125 features gold plated stereo inputs, cascade stereo outputs, and five way

binding posts to ensure perfect connections without corrosion for years to come.

FEATURES AND BENEFITS

Turn-On Modes

The SI-2125 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 SI-2125 to interface with any kind of system and have the unit automatically

turn on.

Automatic Protection

The SI-2125 is equipped with sophisticated protection circuits. In the unlikely

event that a problem occurs, the amplifier shuts itself off. When conditions return

to normal, regular operation resumes.

Status Display for Troubleshooting

LED’s 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 curtains.

Bridged Mode

The SI-2125’s can be operated in a bridged mono configuration. In this

configuration, it can deliver upwards of 350 watts. Bridged mode is perfect for

subwoofer, rock speakers or any applications requiring high power output.

Designed and Engineered in the USA

Limited two-year parts and labor warranty.

FEATURES AND BENEFITS

INSTALLATION CONSIDERATIONS

Placement

Place the SI-2125 on a flat level surface like a table or shelf. It should be placed

upright so that its weight rests on the four attached feet. Placing the weight of the

amplifier on the rear or front panel for even an instant will result in damage to

the amplifier’s connectors and controls.

The SI-2125, like any hi-fi component, will last much longer if it is given adequate

ventilation for proper cooling. When installing the SI-2125 in a cabinet, be sure that

the rear of the cabinet is open to fresh air to provide proper cooling (see Figure 1).

If the cabinet’s design will not accommodate an open rear, install two small “boxer

fans” to provide continuous air flow into and out of the cabinet (see Figure 2). Place

the SI-2125 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 SI-2125.

CAUTION! When using low impedance speaker loads (less than 8 ohms Normal

Mode) refer to figure 2 for proper placement.

INSTALLATION CONSIDERATIONS

Allow a minimum of 2” of depth behind unit

to accommodate cables and connectors.

If the cabinet rear is not open to fresh air or if you’re using

low impedance loads, install two “boxer fans” to provide

continuous air flow into and out of the cabinet.

Boxer Fan (55 CFM)

directly centered 2”

behind the SI-2125.

Boxer Fan (55 CFM)

directly centered 7”

on top of the SI-2125.

Figure 1 Figure 2

Make sure that there is a minimum of 7” of free air

space above the amplifier for proper ventilation.

Turn-On Modes

The SI-2125 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 is usually best to turn the

amplifier on only when it is needed. The Turn-On Mode selector switch gives you

three options for turning the SI-2125 on and off.

Constant - The auto turn-on circuitry is off. The front panel master power switch

operates the amplifier. In is “On”, out is “Off”.

Audio Sense - The master switch on the front panel must be in the “On” position.

The amplifier is off when there is no audio signal present at either the left or the

right input, but the sensing circuitry is on. The turn-on sensing circuitry looks for

a tiny amount of audio signal present at any of the audio inputs. If it detects a

signal, the amplifier is turned on. Once the audio signal 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 voltage, the amplifier is turned on. Once the voltage stops, the sensing

circuit instantly turns the amplifier off. Voltage triggers can be supplied by Niles

automated switchers, some video projectors, some surround sound processors, or

something as simple as a 16 volt AC wall adapter plugged into the switched outlet

of your stereo receiver. DO NOT USE A DC WALL ADAPTER. The long discharge

time of the DC adapter’s filter capacitor will delay the turn-off of the amplifier.

If you are using a wall adapter or external power supply to provide the trigger, it

doesn’t have to be very large (a minimum current capability of 2.5 milliamps for a 3

volt trigger increasing up to a minimum of 38 milliamps for a 30 volt trigger).

INSTALLATION CONSIDERATIONS

Bridged Mode

The SI-2125’s bridged mode switch allows you to create a more powerful

amplifier by combining both channels into one (8 ohm minumum). In the bridged

mode, connect the speakers to the left red positive terminal and the right red

positive terminal. In the bridged mode the right channel’s red terminal becomes

positive and the left channel’s red terminal becomes negative.

DO NOT USE THE BLACK NEGATIVE (-) TERMINALS. THE SIGNAL

IS AT THE RED POSITIVE (+) TERMINALS ONLY.

Multiple Speaker Loads

The SI-2125 is stable into very low impedance loads. This means you can safely

operate three pairs of 8 ohm speakers (a 2.67 ohm load) directly connected to

the SI-2125. Note that the SI-2125 does not have on/off speaker switching built

in. When the amplifier is on, so are all of the speakers. (for more information on

proper amplifier placement, see Installation Considerations on page 5, Figure

2).

Niles makes a number of different speaker selection and impedance matching

systems. Speaker selection systems allow each pair of speakers to be turned on and off

from your equipment location (or even via remote control). That way, you know that

the speakers in the bedroom 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 connect up to ten pairs of speakers to your SI-2125 amplifier.

INSTALLATION CONSIDERATIONS

TECH TIP

Wire size is expressed by its AWG (American

Wire Gauge) number. The lower the number,

the larger the wire, i.e. twelve AWG is physically

larger than fourteen AWG.

Speaker selection systems allow each pair of speakers to be turned on and off from your

equipment location (or even via remote control).

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 SI-2125 they are connected to.

The SI-2125 connects to your sources via shielded line level audio cables with

RCA phono plugs. Use high quality cables with your Niles amplifier for the lowest

possible noise and best overall performance. Your Niles dealer can recommend

the proper cable.

The SI-2125 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-2125 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.

SPEAKER 6

L+ L- R- R+

AMPLIFIER

L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+

SPEAKER 5 SPEAKER 4 SPEAKER 3 SPEAKER 2

L+ L- R- R+

SPEAKER 1

CONSTANT

PROTECTION

ON OFF

Niles Audio

Corporat ion, Inc.

Mi ami, Flor ida USA

NILES

Niles HDL-6 Speaker Selection System

Niles SI-2125

Red “Power” LED confirms the amplifier is

connected to a live AC power outlet and

that the master power switch is on.

Green“Active” LED lights when the

amplifier circuitry has been turned on by

the Turn-On circuits.

Front panel “Master Power” switch turns

off the entire 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-2125 itself.

Main Inputs enable you to route a stereo

line level source to the SI-2125.

Cascade Outputs of the main input enable

you to daisy chain multiple amplifiers.

3.5 mm mini-jack for

12V DC control output.

“Turn-On Mode”switch

3.5 mm mini-jack

for voltage input.

FRONT AND REAR PANEL DETAILS

Otros manuales para SI-2125

Tabla de contenidos

Otros manuales de Amplificador de Niles

Niles

Niles SI-250 Guía de solución de problemas

Niles

Niles SA-100 Instrucciones de funcionamiento

Niles

Niles SWA-500M Manual de usuario

Niles

Niles TVA-50 Manual de usuario

Niles

Niles SI-1650 Manual de usuario

Niles

Niles SI-2125 Manual de usuario

Niles

Niles SI-1230 Series 2 Instrucciones de funcionamiento originales

Niles

Niles AVDA-3 Instrucciones de funcionamiento originales

Niles

Niles SWA-500M Manual de usuario

Niles

Niles SWA-500M Manual de usuario

Niles

Niles SI-1230 Series 2 Manual de usuario

Niles

Niles SI-245 Instrucciones de funcionamiento originales

Niles

Niles SI-1260 Manual de usuario

Niles

Niles SI-1230 Series 2 Instrucciones de funcionamiento originales

Niles

Niles SI-1200 Instrucciones de funcionamiento originales

Niles

Niles TVA-20 Manual de usuario

Niles

Niles SI-1230 Series 2 Manual de usuario

Niles

Niles AVDA-3 Instrucciones de funcionamiento

Niles

Niles ADA-6 Manual de usuario

Niles

Niles SI-250 Manual de usuario

Niles

Niles A4.6Ci Instrucciones de funcionamiento originales

Niles

Niles SI-275 Export Instrucciones de funcionamiento originales

Niles

Niles SI-250 Guía de configuración

Niles

Niles TVA-50 Guía de solución de problemas

Manuales populares de Amplificador de otras marcas

ASTRO

ASTRO HVO V40 P Manual de usuario

Marantz

Marantz SUPERSCOPE BLA-545 Instrucciones de montaje

NAD

NAD CI980 Manual de usuario

Technics

Technics SE-CH770 Manual de usuario

Harman Kardon

Harman Kardon HK6300 Manual de usuario

NAD

NAD T975 Manual de usuario

McIntosh

McIntosh MA6850 Manual de usuario

Electro-Harmonix

Electro-Harmonix ENGLISH MUFF’N Manual de usuario

Viatron

Viatron Autrix Manual de usuario

GME

GME GA9800 Manual de usuario

Atlas

Atlas CP700 Manual de usuario

Roland

Roland KC-1000 Manual de usuario

Pyle

Pyle PFMRA350BW Manual de usuario

Advantage

Advantage S-250 Manual de usuario

IRT Electronics

IRT Electronics DVA-3007 Manual de usuario

Dimavery

Dimavery BA-100 Series Manual de usuario

Sony

Sony XM-S400D Manual de usuario

Schertler

Schertler ROY X Manual de usuario