Products catalog

  • Volume controller with “Override” function | dual-channel | 30W per channel | 4–16Ω | 5 volume adjustment levels | ABS plastic | flush-mounted

    Code: WH-2FRS

    A dual-channel audio volume controller designed for convenient, safe, and reliable sound level control in various audio systems. The device features an “Override” (priority) function that automatically bypasses the user-set volume during emergency or priority announcements.

    Thanks to its compact design, durable ABS plastic housing, and easy installation, the WH-2FRS is well suited for both residential applications as well as commercial and public address (PA) systems. 

  • Technical specifications

    Number of channels: 2
    Rated power:
    30 W per channel
    Up to 60 W (both channels controlled simultaneously)
    Operating impedance: constant 4–16 Ω
    Volume control steps: 5 levels
    Override control signal: DC 12–24 V / 20 mA
    Housing: high-quality ABS plastic
    Design: rounded corners, modern shape
    Installation: wall-mounted (flush-mounted)
    Purpose: audio volume control in low-impedance systems

    Functions

    Dual-channel volume control – allows simultaneous control of two audio lines while maintaining balance and constant impedance
    Constant impedance support (4–16 Ω) – ensures safe amplifier operation and stable audio signal regardless of volume level
    5-step volume control – clear and convenient volume selection without complex settings
    Override (priority) function – when a 12–24 V signal is received, volume limitation is bypassed; ideal for evacuation, alarm, or emergency announcements
    Impact-resistant housing – retains its shape and is resistant to daily use and mechanical stress
    Synchronous channel control – both channels are controlled with a single knob, ensuring simple and convenient operation

    Applications

    For home users: multi-zone home audio systems, background music control in different rooms, a simple, clear, and reliable solution for everyday use
    For engineers / designers: public address (PA) systems, emergency announcement and evacuation solutions, projects requiring priority audio control (Override)
    For electricians / installers: quick and easy installation, clear wiring diagram, compatibility with 4–16 Ω systems, a reliable component for professional installations
    Other use cases: offices, shops, schools, hotels, restaurants, conference halls, corridors, stairwells, shared areas

    Advantages

    Two channels in one device
    Constant impedance – safe amplifier operation
    Override function – suitable for safety systems
    Up to 60 W total power
    Durable and aesthetic ABS housing
    Simple and reliable operation

    Disadvantages

    No separate volume control for each channel
    Designed only for low-impedance (4–16 Ω) systems
    No digital control or display 

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.
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