Xantech PA1235 installation instructions Be sure to set the RC68+ to the same number

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7.MUTE ON/OFF. Separate ON / OFF Mute commands give positive mute action without knowing the actual mute status. This is very helpful in a remote room where commands are sent “blind” without any visual aids for status.

NOTE: In addition to MUTE OFF, the muted condition can be released with VOLume (item #8), Preset Level (item #2) and Balance (items #4 & 5) commands.

8.VOLume Up/Down Commands. When pressed in individual steps, volume increase and decrease is 2 dB per step over a range of 0 dB (Max.) to -60 dB. The next step below -60 dB is OFF (> -90 dB). When pressed continuously, volume level will change (ramp) continuously in 1 dB steps. See also MAX-V settings (item 6).

NOTE: Volume action of the PA1235 has been designed specifically to ramp more quickly in the DOWN direction and more slowly in the UP direction.

9.Code Group Numbers. The PA1235 is capable of being set to 55 different code groups, both individually as amplifier pairs and collectively as a group.

NOTE: As shipped from the factory, all amplifier pairs in the PA1235 are set to code group number

A0.

Be sure to set the RC68+ to the same number!

It may be necessary to change the PA1235 amplifier pairs to different code groups if you wish to address each pair individually from the COMMON IR BUS (item #15, Fig. 3) or an external common IR bus network when using other Xantech PA1235's in large systems, to avoid mutual interaction.

Refer to the RC68+ instructions for code group setting procedures.

10.ADJ-OFFCommand. This command unlocks a previous MAX-V setting. See also item #6.

INSTALLATION

PHYSICAL LOCATION AND MOUNTING

When you mount the PA1235, you should plan its location carefully. Pay close attention to each of the following factors:

1.The amplifier is convection cooled. That is, it depends on the natural free flow of air up through the slot perforations in the bottom plate, over the internal heat dissipating fins, then out the top cover, for adequate cooling.

Upper shelf, component, wall, etc.

 

 

Keep perforations on top cover free of

2-inch spacing

 

 

(minimum)

PA1235 obstructions for max. cooling effect.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

To maximize air flow, route

Convection

Keep perforations on bottom

single large opening in lower shelf.

Airflow

plate free of obstructions.

Fig. 5 Horizontal Mounting

 

 

 

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PA1235

 

 

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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 Front Panel LEDs do not light no sound Trouble ShootingLow level or no sound when operated without IR control Unit responds intermittently or not at all to IR commandsSpecifications

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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