Atlas Sound AT100D – Deluxe Decora 100W Volume Attenuator 3dB Steps

Product Overview

The Atlas Sound AT100D is a Decora-style plate-mounted 100-watt volume attenuator designed for commercial and residential audio distribution systems. It provides precise level control in 3 dB steps for 70V and 25V distributed audio systems, making it an ideal choice for multi-zone paging, background music, and sound reinforcement installations. The AT100D mounts in a standard single-gang electrical box and accepts a standard Decora-style wall plate for a clean, professional finish.

Product Description

The AT100D attenuator allows installers to independently control volume at each speaker zone without affecting other zones in a distributed audio system. The unit operates on both 70V and 25V constant-voltage systems, which are the standard in commercial AV installations such as offices, retail spaces, restaurants, and educational facilities. Its rotary switch design provides repeatable, stepped attenuation in 3 dB increments for consistent level adjustment across listening zones. The Decora plate format integrates with virtually any standard wall plate, giving the installation a finished appearance that matches existing electrical hardware. Rated at 100 watts, the AT100D handles high-power distributed audio loads without the need for external components or transformers. The unit is wired in-line between the amplifier output and the speaker, simplifying installation and reducing labor time. Its compact design fits within standard single-gang electrical boxes, minimizing wall penetration requirements. The AT100D is manufactured by Atlas Sound, a trusted brand in commercial audio with decades of experience in distributed audio components.

Key Features

• 100-Watt Power Rating — Handles high-power distributed audio loads in commercial installations.
• 3 dB Step Attenuation — Provides consistent, repeatable volume control at each zone.
• 70V and 25V Compatible — Works with both standard constant-voltage distributed audio systems.
• Decora Plate Format — Mounts in any standard single-gang electrical box with a Decora-style wall plate.
• Rotary Switch Design — Smooth, positive-detent switching for reliable long-term operation.
• In-Line Wiring — Simple series connection between amplifier and speaker reduces installation complexity.
• Professional Finish — Accepts standard Decora wall plates to match existing electrical hardware.

Technical Specifications