Atlas Sound FC-8ST – 8" IsoFlare Premium Ceiling Subwoofer Blind Mount

Product Overview

The Atlas Sound FC-8ST is an 8" ceiling subwoofer engineered specifically to complement the AtlasIED IsoFlare FC series of in-ceiling full-range speakers, delivering extended low-frequency response in commercial spaces where a matched ceiling speaker system is required. The FC-8ST uses a 200 mm (8") high-excursion driver with a weatherized multi-fiber paper pulp cone and butyl rubber surround, mounted in an injection-molded ABS front baffle optimized for low-frequency output. A passive 2nd-order crossover at 140 Hz handles frequency division without requiring a separate electronic network, and a 30-watt 70V/100V transformer enables direct connection to distributed commercial audio lines. The blind-mount design ships with C-Ring and Tile Bridge hardware for installation in tile, drywall, and plasterboard ceilings using AtlasIED's patented toolless clamp mechanism.

Product Description

The FC-8ST was designed as a purpose-built acoustic companion to the IsoFlare FC ceiling speaker range, ensuring that the sonic character and architectural presentation of the subwoofer matches the full-range speakers already specified for a project. This is a meaningful design consideration: mixing subwoofer models from different manufacturers or product lines often produces coverage inconsistencies and tonal mismatches that are difficult to correct through equalization alone. Using the FC-8ST alongside FC series speakers provides a unified system with compatible crossover slopes, matched baffle aesthetics, and access to the same AtlasIED Atmosphere DSP platform voicing presets.

The 200 mm high-excursion driver extends below the typical ceiling speaker rolloff point, providing the low-frequency headroom needed for foreground music reproduction in commercial environments such as restaurants, lounges, retail spaces, and hospitality venues. The butyl rubber surround handles the longer cone excursions required for low-frequency output without fatigue or compliance degradation over time, a common failure mode in non-purpose-built ceiling subwoofers. The optimally tuned injection-molded front baffle is manufactured from UV/weather-resistant UL94V-0 ABS material for long-term reliability.

The passive 2nd-order crossover at 140 Hz intersects with the FC full-range speakers' low-frequency rolloff, providing a smooth combined response without a crossover region gap or overlap that would require correction. The 30-watt 70V/100V transformer with easy-access tap selector switch keeps the installation process consistent with other FC series speakers already on the system. AtlasIED Atmosphere platform integration provides DSP voicing presets that are specifically tuned for the FC-8ST in conjunction with FC full-range speakers, further optimizing the combined system response for specific room types. The magnetically secured, edgeless grille matches the FC series aesthetic and is fully paintable for architectural integration.

Key Features

• IsoFlare FC Series Matched Design — Engineered specifically to complement FC ceiling speakers in performance and aesthetics, producing a cohesive low-frequency extension system without tonal or spatial mismatch.
• 200 mm High-Excursion Driver — 8" woofer with weatherized multi-fiber cone and butyl rubber surround provides extended low-frequency output with long-term mechanical reliability.
• UL94V-0 ABS Injection-Molded Front Baffle — UV/weather-resistant ABS material meets UL94V-0 fire resistance standard for ceiling installations in commercial environments.
• 2nd-Order 140 Hz Passive Crossover — Low crossover point with a 2nd-order slope transitions smoothly from the subwoofer to FC full-range speakers without localization artifacts or frequency response gaps.
• 30-Watt 70V/100V Transformer with Easy-Access Tap Selector — Low insertion loss transformer allows direct line-level connection to 70V or 100V commercial distributed audio systems with convenient tap selection without speaker removal.
• Patented Toolless Secure-Clamp Mounting — High-travel clamp mechanism locks the speaker in ceiling material without tools, accommodating a wide range of ceiling thicknesses for fast and reliable blind-mount installation.
• Magnetically Secured Edgeless Grille — Paintable, logo-removable grille with no visible ring matches FC series full-range speakers for a consistent ceiling appearance across the system.
• AtlasIED Atmosphere DSP Integration — Voicing presets available via the Atmosphere platform optimize combined FC-8ST and FC speaker system response for specific room types without manual equalization.
• Ships with C-Ring and Tile Bridge — Complete installation hardware included for tile, drywall, and plasterboard ceiling types.

Typical Applications

• House of worship
• Commercial meeting space
• Multi-purpose room
• Conference room
• Auditorium
• Training room

Technical Specifications

Frequently Asked Questions

Q: Which Atlas Sound FC speakers is the FC-8ST designed to pair with?

A: The FC-8ST is designed to complement the full AtlasIED IsoFlare FC in-ceiling speaker range, including the FC-8T, FC-8TPI, and other FC series models. Using the FC-8ST alongside FC series full-range speakers provides matched aesthetics, compatible crossover design, and access to combined Atmosphere DSP voicing presets.

Q: Does the FC-8ST require an external electronic crossover?

A: No. The FC-8ST includes a 2nd-order passive crossover at 140 Hz that handles frequency division internally. No separate crossover processor or amplifier channel is required beyond the 70V or 100V line connection.

Q: Can the FC-8ST be used in 70V and 100V distributed systems?

A: Yes. The internal transformer supports both 70V and 100V line-level operation with an easy-access tap selector switch that can be adjusted without removing the speaker from the ceiling.

Q: What ceiling types does the FC-8ST support?

A: The FC-8ST is supplied with C-Ring and Tile Bridge hardware for installation in standard ceiling tile, drywall, and plasterboard ceilings. The patented toolless clamp mechanism accommodates a wide range of ceiling material thicknesses.

Q: Can the FC-8ST grille be painted to match the ceiling?

A: Yes. The edgeless magnetically secured grille is fully paintable and the logo can be removed, allowing a single-step painting process that blends the speaker into the ceiling surface.

Q: What is the warranty on the FC-8ST?

A: The FC-8ST carries a 60-month (5-year) limited warranty from AtlasIED. Contact Creation Networks or AtlasIED for warranty claim procedures and support.