TOA AT-4000 Series Attenuator / Volume Control with Box - 60W

The TOA AT-4000 Series Attenuator and Volume Control is a professional-grade audio component designed for precise sound management in public address, background music, and audio distribution systems. It provides essential volume adjustment with excellent ergonomics and reliable performance, ensuring optimal sound quality across various installations.

Designed with ergonomics in mind, the AT-4000 Series features a control knob that offers a comfortable grip and excellent control with every turn, allowing for smooth and accurate adjustments. A key feature is the built-in 24VDC overriding relay, which enables emergency paging functionality—this is clearly indicated by a red LED light when activated, ensuring critical announcements can override the current audio.

The unit offers precise 8-step attenuation level control with a range of +/- 3dB, giving installers and users fine-tuned command over audio levels. It is designed for maximum compatibility, working seamlessly with 2, 3, or 4 wire audio systems. The inclusion of a terminal block accommodates thicker diameter cable for secure and robust connections, while the clip-on face plate allows for quick and easy installation and maintenance.

This attenuator is highly versatile in its mounting options. It can be installed either as a surface mount or flush mounted into a wall or panel, with a surface mount back box conveniently included in the package. The unit sports a glossy white finish, providing a clean and modern aesthetic that blends well with most interior decors. With its combination of functional reliability, flexible installation, and user-friendly design, the TOA AT-4000 Series is an indispensable component for any professional audio setup.

Variant Details

• Size: 60W