Niles Audio SI-1260 manual Bridging Two Channels into One

Page 22

INSTALLATION

Bridging Two Channels into One

The SI-1260's bridging switches allow you to create a more powerful amplifier chan- nel by combining or "bridging" two adjacent amplifier channels together into one.

Figure 16

 

Figure 17

Channel Bridging Switch and DIP Switches

 

Bridged Channel Connections

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When two channels are bridged

 

 

 

 

 

 

 

 

 

 

 

 

Slide the bridg-

 

 

 

 

 

 

 

 

 

 

 

 

ing switch in the

together, connect speakers to the

 

 

 

 

 

 

 

 

 

 

 

 

direction of the

two terminals labeled “Bridged”.

 

 

 

 

 

 

 

 

 

 

 

 

arrow to bridge

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

two adjacent

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

amplifier chan-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

nels. Set the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

controls of the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

newly bridged

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pair by using the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EVEN numbered

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

channel.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

STEP

DESCRIPTION

1. Choose which of the six pairs you

The 12 channels are grouped into 6 pairs

wish to bridge and move the bridging

(e.g. 1 & 2). Only the two channels within a

switch for that pair to the "Bridged"

pair can be bridged. Thus, only channels 1

position (toward arrow).

and 2, or channels 3 and 4 could be

 

 

 

 

 

 

 

 

 

 

 

 

 

bridged. Channel 2 and 3 are not a pair and

 

 

 

 

 

 

 

 

 

 

 

 

 

cannot be bridged.

 

 

CAUTION! DO NOT CONNECT A

Each bridged channel is designed for a 4

SPEAKER LOAD OF LESS THAN 4

ohm minimum load. Connecting multiple

OHMS TO A BRIDGED CHANNEL.

speakers to a single channel, creating a

 

 

 

 

 

 

 

 

 

 

 

 

 

nominal impedance of less than 4 ohms

 

 

 

 

 

 

 

 

 

 

 

 

 

may cause the SI-1260 to go into protection

 

 

 

 

 

 

 

 

 

 

 

 

 

mode or be damaged.

 

 

2. Connect the speaker wires to the

Connect the speaker wires to the two adja-

two bridged speaker terminals

cent amplifier channel's RED terminals only.

(BRIDGED+, BRIDGED-). Carefully

NOTE: If one of the speaker wires touches a

observe the polarity markings.

BLACK terminal, you will short-circuit the

 

 

 

 

 

 

 

 

 

 

 

 

 

amplifier.

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION! DO NOT CONNECT A

 

 

 

 

 

 

HEADPHONE JUNCTION BOX TO THE

These connections to a bridged channel

OUTPUT OF A BRIDGED CHANNEL

pair will cause either thermal shutdown

PAIR.

or poor quality sound.

 

 

3. Use the EVEN NUMBERED BusMatrix™

When two channels are bridged into one,

switch bank and level control for the

ensure that the odd numbered DIP

adjustments and configuration of a

switches are all in the "OFF" position.

bridged channel.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21

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Contents Systems Integration Amplifier Table of Contents CongratulationsIntroduction IntroductionFeatures and Benefits Features and BenefitsIndependent Level Controls Twelve to Six Channel Configurable PowerFreedom From Noise and Cross-Talk Turn-On ModesDesign Basics Single Zone SystemSpeaker Compatibility Cable and WireSystem Design Considerations Using Mono For Smoother Coverage Advantages of Using The SI-1260 in a Single Zone System ApplicationsCreating a Low-Cost Second Zone Using a Dedicated Source Low Cost Second Zone for CDsUsing a Dual-Zone Receiver for Two Listening Zones Using a Dual Zone ReceiverApplications & System Design Considerations Adding Preamps To Create More Listening ZonesUtilizing the Dual BusMatrix Input Dual BusMatrix InputConfiguring Your System Configuring Your SystemSample Configuration Worksheet Installation Considerations Installation ConsiderationsPlacement Installation InstallationAC Power Plug Line Level Audio InputsPanel Details Front and RearFront and Rear Panel Details Banana plug to the black terminal Speaker Wire ConnectionsLabel all wires One to the red terminalBusMatrix Input DIP Switch Settings BusMatrix DIP SwitchesBridging Two Channels into One Setting the Turn-On Mode Switch Control OutputOperation Front Panel Power SwitchPower LED Indicator OperationChannel Pair LED Indicators Solid GreenUsing Level Controls as Limiters Listening at Higher Volumes Cleaning and MaintenanceTroubleshooting Guide Troubleshooting GuideSound is phasey VolumePower LED is slowly Some or all channelsConfiguration Worksheet Configuration WorksheetSpecifications SpecificationsNiles Audio Corporation
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SI-1260 specifications

The Niles Audio SI-1260 is a high-performance multi-channel amplifier designed to deliver exceptional sound quality and power for home audio systems. Renowned for its reliability and versatility, this amplifier is perfect for both custom installations and standalone use, catering to audiophiles and casual listeners alike.

One of the standout features of the SI-1260 is its impressive power output. With 60 watts per channel at 8 ohms, this amp provides ample power to drive a variety of speakers, ensuring clear and dynamic sound reproduction across different genres of music and audio formats. For users who require additional power, the SI-1260 can deliver 100 watts per channel at 4 ohms, making it suitable for larger rooms and demanding setups.

The SI-1260 employs advanced Class D amplification technology, which is known for its efficiency and minimal heat generation. This not only leads to lower energy consumption but also allows for a more compact design—a crucial aspect for home installations where space can be at a premium. The amplifier’s compact size does not compromise its performance; it boasts a robust output that maintains sound integrity even at higher volumes.

Another significant advantage of the SI-1260 is its versatile connectivity options. Equipped with multiple inputs, including RCA and balanced XLR connections, users can seamlessly integrate it into their existing audio systems. This flexibility allows the amplifier to work well with a variety of audio sources, including home theater systems, whole-house audio systems, and more.

The SI-1260 also incorporates advanced protection circuitry, safeguarding against overloads, short circuits, and overheating. This ensures not only the longevity of the amplifier itself but also the longevity of connected speakers, providing peace of mind for users.

For those who appreciate ease of use, the Niles Audio SI-1260 features a universal control interface, allowing compatibility with remote control systems and automation. This makes it an ideal choice for smart home integrations, enhancing the user's overall audio experience.

In conclusion, the Niles Audio SI-1260 stands out as a feature-rich, powerful, and efficient multi-channel amplifier suitable for a wide range of audio applications. With its excellent power output, advanced Class D technology, versatile connectivity, and reliable protection features, it delivers high-quality sound that meets the demands of modern audio enthusiasts.
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