Xantech PA1235 installation instructions Channel Power Amplifier, General Information

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INSTALLATION INSTRUCTIONS

PA1235

2 CHANNEL POWER AMPLIFIER

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POWER

PA1235 12 CHANNEL POWER AMPLIFIER

Fig. 1 The Model PA1235

GENERAL INFORMATION

To enhance the ease of installation and obtain optimum performance from the PA1235, we recommend that you first become familiar with all its features and special capabilities by studying the descriptions and instructions in this manual.

The PA1235 was designed to meet the audio power amplifier needs of custom installed multi-room, multi- zoned systems with high sonic quality. Common and Local IR control of Volume, Mute, Balance and OFF, for each channel pair, is provided. It's bridgeable 12-11-10-9-8-7-6 multichannel capability permits a wide variety of uses, such as enough channels to run surround sound home theater and multi-room applications simultaneously. Specific features and technology are as follows:

•Cost/Size Efficiency. The PA1235 features 12 conservatively rated 35-watt power amplifiers. This permits each PA1235 to drive 6-zones in a multi-zone system, each with a 35 watts/channel stereo amplifier per zone. The rack mountable low profile design, using a large single multiple filtered power supply, delivers high quality at a reasonable price.

•IR Controlled Volume Level. Volume can be ramped from zero output to maximum for individual channel pairs, or, as group through the Common Bus inputs, using IR volume control commands from an RC68+ (or RC68). The maximum input sensitivity at full volume is 0.15 volts for rated output (35 Watts/chan.).

•Local or Common Bus. Each stereo pair can be fed audio individually via their LOCAL inputs from differing zones or sources. In addition, a single source can be fed, via the COMMON Bus, to some or all stereo pairs as desired. This flexibility permits the installer to drive as many as six rooms in stereo as a single zone system, or six rooms in stereo as a six zone system --- or divide them up for a combination of both.

•Volume Setting Capabilities. The installer has the option of using the volume control of the PA1235 as the sole volume control for a zone or the system, or to adjust the PA1235 volume to a desired fixed level and use the volume action of a connected preamp instead.

•Max-V Setting. This allows the amplifier to be set to deliver a controlled maximum sound level into a zone when the volume is ramped to maximum. This acts as a volume limiter for the system (e.g. to prevent the kids from over-driving wall speakers, etc.).

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Amplifiers & Preamplifiers

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Contents General Information Channel Power AmplifierRack Panel Handles PA1235 Panel and Feature DescriptionsCommon Audio BUS PA1235 Rear Panel Features and Functions See also Caution notes, Fig RC68+ or RC68 Programmer / Remote ControlApplicable RC68+ Button Descriptions Instant Volume Presets. These commands allow ranBe sure to set the RC68+ to the same number Installation Physical Location and MountingStereo Mode Connections Connecting the PA1235Speaker Phasing Bridged Mode ConnectionsBasic Common IR Bus System Dedicated Keypads and Remotes Typical ApplicationsRS41AV Using a DC Power Adapter as a Control Voltage Connecting the Remote Master ON/OFF Control TerminalsBasic Dedicated IR System Non Dedicated Keypads and Remotes PA1235 PA1235 Low level or no sound when operated without IR control Trouble ShootingUnit responds intermittently or not at all to IR commands Front Panel LEDs do not light no soundSpecifications

PA1235 specifications

The Xantech PA1235 is a cutting-edge multi-zone power amplifier designed for both residential and commercial audio applications. Renowned for its impressive performance and reliability, the PA1235 offers robust amplification for distributed audio systems, fulfilling various audio needs in different environments.

One of the main features of the PA1235 is its power handling capabilities. It delivers 35 watts per channel across six channels, ensuring that every zone in a multi-room setup receives adequate power for optimal sound quality. This makes it suitable for powering a variety of speaker types, from in-ceiling speakers to outdoor sound systems. Its architecture allows flexibility in system configuration, making it easy to distribute audio throughout a home or business.

The PA1235 employs advanced Class D amplification technology, which maximizes efficiency while reducing power consumption and heat generation. This not only makes the amplifier more environmentally friendly but also enhances longevity and reliability. The lightweight design of Class D amplifiers allows for easier installation, especially in complex multi-zone environments.

Another characteristic of the PA1235 is its multi-zone functionality. Users can easily assign audio sources to different zones, allowing for personalized control of audio in various spaces. This feature is particularly valuable in commercial settings, where different areas may require distinct audio content or volume levels. It offers seamless integration with existing automation systems, thanks to its compatibility with various control protocols, facilitating a user-friendly experience.

The amplifier also features adjustable gain controls for each channel, allowing users to fine-tune the audio output for different speaker types or acoustic environments. Additionally, the built-in protection circuitry ensures that both the amplifier and attached speakers are safeguarded from overload or short-circuit situations, thereby enhancing overall system durability.

With its combination of power, efficiency, and versatility, the Xantech PA1235 is an ideal choice for integrators and audiophiles alike. Whether used in home theaters, restaurant sound systems, or corporate audio solutions, it provides high-quality audio performance that meets the demands of modern audio requirements, making it a prominent player in the audio amplification market.
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