Atlas Sound SHS-LF Strategically Hidden Subwoofer

Product Overview

The Atlas Sound SHS-LF Strategically Hidden Subwoofer adds genuine low-frequency extension to commercial audio systems while remaining nearly invisible — the only visible element after installation is a patented 3" dispersion lens with a micro trim ring, roughly the size of a high-end ceiling sprinkler head. Four low-frequency drivers inside a sealed steel enclosure mount above the ceiling tile, requiring just a 2.75" cutout. With a multi-tap 70V/100V transformer and an 8-ohm bypass mode, this concealed in-ceiling subwoofer integrates into distributed audio systems or direct-coupled designs without separate amplification schemes. It is the low-end companion to architectural ceiling speaker systems in boardrooms, conference rooms, and other finished commercial interiors where aesthetics drive the design.

Product Description

Architects and interior designers increasingly reject visible loudspeakers in premium spaces, and the SHS-LF answers that constraint without sacrificing bass response. Four 3.5" x 4.75" woofers operate inside a sealed enclosure engineered for deep bass performance from 46Hz to 127Hz (+/-5dB, line gain). The included 70V/100V transformer offers primary taps at 1.9, 3.8, 7.5, 15, 30, and 60 watts at 70.7V, letting designers balance the subwoofer against full-range ceiling speakers on the same constant-voltage line. A tap selector switch includes a transformer bypass for 8-ohm direct-coupled applications, where the recommended amplifier power is 200 watts RMS.

Installation efficiency is a defining trait of this hidden subwoofer. An integrated rail system builds the tile rails directly into the enclosure — no rail screws required. The installer pulls the four rails out from the enclosure, drills a 2.75" hole in the ceiling tile, sets the unit through the hole, and screws on the adaptive dispersion lens. Detachable Phoenix-style four-pole Euro connectors make daisy-chain wiring across multiple units straightforward during commercial audio installation. The Adaptive Dispersion Lens ships with two configurations: ceilings between 10' and 14' use the 8mm dispersion lens with the solid cover, while ceilings above 14' or maximum-output applications use the direct-fire lens with the perforated panel. Flange, diffuser, lens kits, and a paint shield are all included. For spaces where even the small lens must vanish, AtlasIED's DesignLab service UV-prints a custom color-matched lens and trim ring from a submitted ceiling image or sample. The SHS-LF is certified to UL1480A, UL2043, and CSA C22.2 No. 205-17, supporting plenum deployment in commercial construction.

Key Features

• Nearly Invisible Installation — Only a 3" lens and micro trim ring show after installation, comparable in size to a ceiling sprinkler head.
• Quad-Driver Sealed Enclosure — Four 3.5" x 4.75" woofers in a sealed steel box deliver controlled bass from 46Hz to 127Hz.
• 70V/100V and 8-Ohm Operation — Multi-tap transformer (1.9 to 60 watts at 70.7V) with bypass switch covers distributed and direct-coupled system designs.
• Tool-Saving Rail System — Built-in tile rail arms expand mechanically from the enclosure, with no rail screws needed.
• 2.75" Cutout Only — Minimal ceiling tile modification compared with conventional in-ceiling subwoofer cutouts.
• Two Lens Configurations — 8mm dispersion lens for 10'–14' ceilings; direct-fire lens with perforated panel for ceilings above 14' or maximum output.
• Daisy-Chain Wiring — Detachable Phoenix-style four-pole Euro connectors speed multi-unit deployments.
• Custom Color Matching Available — AtlasIED DesignLab UV-prints lens and trim rings to match any submitted ceiling sample.
• Safety Certified — UL1480A, UL2043, and CSA C22.2 No. 205-17 listings support plenum-rated commercial installations.
• Complete Kit — Ships with flange, diffuser, lens kits, paint shield, and mounting arms.

Typical Applications

• Boardrooms and executive conference rooms
• Huddle rooms and commercial meeting spaces
• House of worship installations with architectural constraints
• Government spaces requiring discreet AV
• Multi-purpose rooms and all-hands rooms
• Training rooms with background and program audio

Technical Specifications

Frequently Asked Questions

How visible is the SHS-LF after installation?
Only the patented 3" dispersion lens and micro trim ring are visible — about the footprint of a high-end ceiling sprinkler head. Custom color-matched lenses are available through AtlasIED DesignLab for full concealment.

Does it work in a 70V distributed audio system?
Yes. The included transformer provides taps from 1.9 to 60 watts at 70.7V (3.8 to 60 watts at 100V), so you can balance it against full-range ceiling speakers on the same line. A bypass setting enables 8-ohm direct-coupled operation with up to 200 watts RMS recommended.

Which lens configuration should I use?
Use the 8mm dispersion lens with the solid cover for ceiling heights between 10' and 14'. For ceilings above 14' or applications needing maximum output, use the direct-fire lens with the perforated panel.

How difficult is installation?
The integrated rail system requires no rail screws: pull the four built-in tile rails out from the enclosure, drill a 2.75" hole in the ceiling tile, set the unit through, and attach the lens. Phoenix-style connectors simplify daisy-chain wiring across zones.

Is it plenum-rated for commercial ceilings?
The SHS-LF is certified to UL1480A and UL2043 along with CSA C22.2 No. 205-17, supporting installation in air-handling ceiling spaces common in commercial construction.

Which speakers pair with it?
It is designed to complement AtlasIED Strategically Hidden Speaker models and other 70V ceiling speakers. For system design help and full-range speaker pairing, contact Creation Networks.

What warranty applies?
AtlasIED covers the SHS-LF for 60 months from the date of purchase, and Creation Networks supports warranty claims for products purchased through our store.