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 three minutes, and then turns the amplifier off.

3-30 Volt AC/DC Trigger Input: 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 and a line-level audio signal is detected at the input, the amplifier is turned on. Once the voltage stops, the sensing circuit instantly turns the amplifier off. Voltage trigger can be supplied by connecting a 12Volt AC wall adapter to 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.

TOOLS REQUIRED

■1/8" Slotted screwdriver

■Wire stripper

■Wire labels

INSTALLATION

1.Select an appropriate location for the A45-X2

2.Run all the necessary wiring to the A45- X2. Label the wires for future reference.

3.Strip 1/4" of insulation from the end of each speaker wire. Tightly twist the end of each wire until no frayed ends remain.

4.Unscrew the Red and Black speaker wire connectors.

5.Insert each wire into the appropriate hole and tighten the connector until the wire is securely clamped.

6.Connect the Pre-Amplifier or Receiver

to the RCA connector terminal labeled: INPUT.

7.Set the position of the Turn On Mode switch. Connect 12 Volt trigger

if applicable.

8.Connect the AC power cord to the A45- X2, and then plug it into an “Un- switched” AC outlet.

9.Turn the Master Power switch on. The switch is located on the front panel of amplifier.

Control Output

This terminal provides a 12Volt DC signal suitable for triggering automated switchers, motorized screens, some electric curtain controls, etc. The trigger voltage is present only when the amplifier is active or “On”. When the amplifier turns “Off”, the 12-Volt signal is off.

Cascade Audio Outputs

The “Cascade Audio Outputs” enable you to connect another amplifier to your preamplifier output. The connectors are gold-plated RCA phono jacks. Connect them to another amplifier’s inputs with a standard audio patch cable. The outputs are not buffered; if you wish to daisy chain more than 3 JobSite amplifiers you will need a buffered distribution amplifier.

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JobSite Systems A45-X2 manual Tools Required, Control Output, Cascade Audio Outputs
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A45-X2 specifications

The JobSite Systems A45-X2 is a cutting-edge construction management software designed to streamline operations on job sites, enhance productivity, and facilitate real-time decision-making. This powerful platform caters to construction teams, project managers, and contractors by offering an integrated suite of tools aimed at improving communication and collaboration.

One of the primary features of the A45-X2 is its robust project management capabilities. Users can create detailed project timelines, allocate resources efficiently, and monitor progress through visual dashboards. The software supports Gantt charts and Kanban boards, allowing teams to visualize their workflows and identify bottlenecks quickly.

Another standout feature is mobile accessibility. The A45-X2 is optimized for mobile devices, enabling on-site personnel to access crucial project information, document updates, and collaborate with their teams in real-time. This level of connectivity ensures that all stakeholders are on the same page, reducing misunderstandings and promoting accountability.

The A45-X2 also incorporates advanced document management systems. Users can store, share, and edit various project documents, including blueprints, contracts, and reports, all from within the platform. This eliminates the risk of miscommunication caused by outdated documents and ensures that everyone has access to the most current information.

In terms of technology, the A45-X2 utilizes cloud computing, allowing for seamless data synchronization and accessibility from any location. The platform is equipped with strong security measures, including data encryption and user authentication protocols, to protect sensitive project information.

Integration with other software tools is another key advantage of the A45-X2. It is compatible with popular accounting and scheduling software, enabling users to consolidate their operations within a single ecosystem. This integration minimizes the need for manual data entry, reducing the chances of errors and saving time.

The A45-X2 also offers robust reporting and analytics capabilities. Users can generate detailed reports on project performance, resource utilization, and budget tracking, providing valuable insights for future projects. With real-time data analysis, teams can make informed decisions and adjust strategies to meet overall project goals.

Overall, the JobSite Systems A45-X2 combines innovative features, cutting-edge technology, and user-friendly design to deliver a comprehensive construction management solution that meets the demands of modern job sites. By enhancing communication, improving organization, and providing analytical insights, the A45-X2 stands out as a vital tool for construction professionals looking to optimize their operations.
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