Adastra RS241 240W 100V Line Slave Amplifier

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The Adastra RS241 is a high-performance 240W 100V line slave amplifier designed to expand and reinforce commercial audio systems. Built... Read more

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£229.00 Incl. VAT

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    Description

    The Adastra RS241 is a high-performance 240W 100V line slave amplifier designed to expand and reinforce commercial audio systems. Built into a compact 1U rack-mount chassis, it delivers efficient Class-D amplification, making it an ideal solution for medium to large-scale installations where additional power is required without increasing system complexity.

    Engineered for seamless integration, the RS241 accepts standard line-level audio inputs from mixers or existing amplifier systems, enabling straightforward system expansion. It is particularly well suited to retail environments, hospitality venues, education facilities, and public address systems where distributed audio is essential.

    Designed for Expanding 100V Line Systems

    The RS241 is purpose-built as a slave amplifier, meaning it is used to increase the power capacity of an existing audio system. It can accept a line-level signal from a mixer or master amplifier and amplify it to drive additional loudspeakers across extended zones or larger areas.

    A key feature is its dedicated 100V input, which allows the amplifier to connect directly into an existing 100V speaker line. This enables installers to extend systems without running additional signal cables, significantly reducing installation time and complexity.

    This makes the RS241 particularly effective for:

    • Expanding background music systems in retail and hospitality
    • Increasing coverage in large commercial buildings
    • Extending speaker lines across long distances
    • Upgrading existing 100V installations without replacing core equipment

    High-Efficiency Class-D Amplification

    The RS241 utilises Class-D amplifier technology, delivering high output with improved energy efficiency and reduced heat generation. This results in a lightweight and compact unit that is easy to install within standard rack environments.

    With a 240W RMS output, the amplifier provides sufficient power for medium to large distributed speaker systems, ensuring consistent audio performance across multiple zones.

    Flexible Connectivity and System Integration

    The RS241 is designed with installer flexibility in mind, offering multiple input and output options:

    • Line-level inputs via RCA or Euroblock terminals
    • Line-level outputs for cascading additional amplifiers
    • 100V input for direct system expansion
    • Speaker outputs for both 100V line and low impedance systems

    The ability to cascade multiple units allows system designers to scale installations efficiently, building larger audio systems without compromising performance.

    Dual Operation: 100V Line or Low Impedance

    In addition to standard 100V line operation, the RS241 can also be configured for low impedance speaker systems, stable down to 2 Ohms. This provides additional flexibility for installers working across different system types or hybrid configurations.

    This dual capability ensures the amplifier can be adapted to a wide range of applications, from distributed ceiling speaker systems to more traditional low impedance setups.

    Emergency Mute Integration for Safety Compliance

    For commercial environments where safety is critical, the RS241 includes a 24V mute input. This allows the amplifier to be connected to fire alarm or emergency systems, automatically muting audio playback when triggered.

    This feature is essential for:

    • Public buildings and commercial premises
    • Schools and education facilities
    • Hospitality venues with safety requirements

    It ensures compliance with safety standards while maintaining system functionality.

    Installation-Ready 1U Rack Design

    Housed in a standard 19-inch 1U chassis, the RS241 is designed for straightforward integration into equipment racks and AV cabinets. Its compact size allows it to be deployed in space-constrained installations while still delivering high output power.

    Front-panel controls include master volume adjustment and LED indicators for power, signal, and peak levels, providing clear system monitoring during operation.

    Ideal Applications

    The Adastra RS241 is widely used across commercial audio environments:

    • Retail stores requiring expanded background music coverage
    • Bars, pubs, and restaurants with multi-area audio systems
    • Schools and colleges with distributed PA systems
    • Warehouses and industrial spaces
    • Offices and commercial buildings

    Its ability to extend existing systems makes it a cost-effective solution for growing installations.

    Specifications

    • Channels: 1
    • Power: 1x 240W
    • Load: 100V or Low Impedance
    • Input: Screw Terminal + RCA
    • Speaker Output: Screw Terminal
    • Dimensions: 433 x 267 x 44mm
    • Weight: 5.8Kg

    © 2026 The AV Barn, A Trading Name of Essex Sound & Light Limited.

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