Niles Audio SI-1260 manual Speaker Compatibility, Cable and Wire, System Design Considerations

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SYSTEM DESIGN CONSIDERATIONS

Speaker Compatibility

A single channel (not bridged) of the SI-1260 is capable of driving a low imped- ance speaker load. As many as three eight ohm speakers can be safely connect- ed to a single channel, presenting the amplifier a 2.66 ohm load. Proper ventila- tion of the SI-1260 is critical when driving low impedance loads. If the SI-1260 is not properly ventilated, the protection circuits may activate and shut off the channel at higher volume levels (for more information on proper amplifier place- ment, see Installation Considerations on page 14).

A channel pair that has been BRIDGED is capable of driving an impedance load of 4 ohms. Proper ventilation of the SI-1260 is critical when driving a 4 ohm load with bridged channels. If the SI-1260 is not properly ventilated, the protection cir- cuits may activate and shut off the channel at higher volume levels (for more information on proper amplifier placement, see Installation Considerations on page 14).

When designing your system, try to specify 6-8 ohm speakers (Niles offers a com- plete line of in-wall, in-ceiling, outdoor and home theater loudspeakers with all models rated from 6-8 ohms).

Cable and Wire

Because the SI-1260 has many connections on the rear panel (see Figure 13), it is important that you correctly label all of the input cables and speaker wires. Label the cables and wires with their destination or source, rather than the SI-1260 terminal to which they are connected. This will make it easier to reconfigure your system in the future.

The SI-1260 connects to your sources via shielded line level audio cables with RCA con- nectors. 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.

A DB25 Multi-Zone Input Connector is provided for use with Niles Multi-Zone Products which include a mating DB25 output connector. All 12 dedicated inputs are included within the single connector, along with the SI-1260's Voltage Trigger Input.

The SI-1260 connects to your speakers using two 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 SI-1260's high-quality, gold-plated 5-way binding posts will accommodate up to 12-gauge wire. Attaching banana plugs to the wire will enable the connection of larger wire sizes.

SYSTEM DESIGN CONSIDERATIONS

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Contents Systems Integration Amplifier Congratulations Table of ContentsIntroduction IntroductionFeatures and Benefits Features and BenefitsTurn-On Modes Twelve to Six Channel Configurable PowerFreedom From Noise and Cross-Talk Independent Level ControlsSingle Zone System Design BasicsSpeaker Compatibility Cable and WireSystem Design Considerations Using Mono For Smoother Coverage Applications Advantages of Using The SI-1260 in a Single Zone SystemLow Cost Second Zone for CDs Creating a Low-Cost Second Zone Using a Dedicated SourceUsing a Dual Zone Receiver Using a Dual-Zone Receiver for Two Listening ZonesAdding Preamps To Create More Listening Zones Applications & System Design ConsiderationsDual BusMatrix Input Utilizing the Dual BusMatrix InputConfiguring Your System Configuring Your SystemSample Configuration Worksheet Installation Considerations Installation ConsiderationsPlacement Line Level Audio Inputs InstallationAC Power Plug InstallationFront and Rear Panel DetailsFront and Rear Panel Details One to the red terminal Speaker Wire ConnectionsLabel all wires Banana plug to the black terminalBusMatrix DIP Switches BusMatrix Input DIP Switch SettingsBridging Two Channels into One Control Output Setting the Turn-On Mode SwitchOperation Front Panel Power SwitchPower LED Indicator OperationSolid Green Channel Pair LED IndicatorsUsing Level Controls as Limiters Cleaning and Maintenance Listening at Higher VolumesTroubleshooting Guide Troubleshooting GuideSome or all channels VolumePower LED is slowly Sound is phaseyConfiguration 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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