Atlas Sound FAPSUB-1 – 8" Tuned Ported In-Ceiling Subwoofer 70V/100V

Product Overview

The Atlas Sound FAPSUB-1 is an 8" in-ceiling subwoofer with a 60-watt 70V/100V low-saturation transformer, designed to extend low-frequency response in commercial distributed audio systems. This in-ceiling subwoofer for 70-volt systems pairs with full-range ceiling speakers to deliver bass-reinforced audio in restaurants, retail stores, bars, and hospitality venues without requiring a separate amplifier or active crossover. Long-tail applications include passive in-ceiling subwoofers for commercial background music, 70-volt subwoofer systems for sports bars, and UL1480-listed in-ceiling subwoofers for commercial audio.

Product Description

The FAPSUB-1 houses an 8Ω, 8" subwoofer driver built and optimized for the FAPSUB-1 enclosure. A high-efficiency passive crossover with 3-pole filtering eliminates unwanted high frequencies, delivering bass response from 45Hz to 120Hz (±10dB). The included low-saturation 70.7V/100V transformer provides six primary power taps at 70.7V: 1.9, 3.8, 7.5, 15, 30, and 60 watts, plus an 8Ω transformer bypass position for direct-coupled applications. This tap range allows the subwoofer output level to be precisely matched to the full-range speakers in the system without additional amplification. The front-mounted tap selector is accessible from below the ceiling, so tap changes do not require removing the speaker from the tile. A 4-pole detachable phoenix-style connector simplifies pre-wiring and allows daisy chaining to adjacent speakers. A "trap door" input section permits through-conduit runs using flexible or rigid conduit. The low crossover point minimizes sound localization, so listeners cannot identify the subwoofer position. The enclosure includes a C-ring/V-rail tile bridge and dogleg mounting hardware for installation in drop-tile or drywall ceilings. The grille and bezel match the aesthetics of other AtlasIED FAP Series speakers. UL 1480 listed; CE marked; 60-month warranty.

Key Features

• 60-Watt 70V/100V Transformer — Low-saturation design with six power taps (1.9, 3.8, 7.5, 15, 30, 60W at 70.7V) and 8Ω bypass for direct amplifier drive.
• Passive High-Efficiency Crossover — 3-pole network eliminates the need for a dedicated amplifier or active crossover unit.
• Tuned Ported Enclosure — Delivers usable bass response down to 45Hz, extending the low-frequency performance of full-range speaker systems.
• Front-Mounted Tap Selector — Accessible from below the ceiling tile; includes bypass position for 8Ω direct-coupled operation.
• Low Crossover Point — Reduces listener localization of the subwoofer position for a more natural audio experience.
• 4-Pole Detachable Phoenix Connector — Supports pre-wiring and daisy chaining of speakers on the same circuit.
• Through-Conduit Input Panel — "Trap door" design accommodates flexible or rigid conduit passes for clean wiring installations.
• FAP Series Aesthetic Match — Grille and bezel coordinate with the FAP43T, FAP63T, and FAP82T in-ceiling speakers.
• UL 1480 Listed — Certified for use in fire alarm and life safety audio applications.

Typical Applications

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

Technical Specifications

Frequently Asked Questions

Q: Does the FAPSUB-1 require a separate amplifier?

A: No. The passive crossover network and included 70V/100V transformer allow the FAPSUB-1 to connect directly to the same 70-volt distributed audio circuit as the full-range speakers, eliminating the need for a separate amplifier or active crossover.

Q: How do I match the subwoofer level to my full-range speakers?

A: Use the front-mounted tap selector to choose a power tap that balances the subwoofer output with the full-range speakers in the system. The selector is accessible from below the ceiling tile without removing the speaker.

Q: What ceiling types does the FAPSUB-1 install into?

A: The FAPSUB-1 includes a C-ring/V-rail tile bridge and dogleg mounting hardware suitable for installation in standard 2x2 or 2x4 drop-tile ceilings and drywall ceilings.

Q: What full-range speakers is the FAPSUB-1 designed to pair with?

A: The FAPSUB-1 is designed to work alongside AtlasIED FAP Series speakers (such as the FAP43T-W and FAP63T-W), matching their grille and bezel aesthetics and compatible with their 70V/100V system wiring.

Q: Is the FAPSUB-1 compatible with 100V systems in addition to 70V?

A: Yes. The transformer supports both 70.7V and 100V line operation.

Q: What safety certifications does this subwoofer hold?

A: The FAPSUB-1 is UL 1480 listed and CE marked.

Q: What warranty applies to this product?

A: AtlasIED covers the FAPSUB-1 with a 60-month (5-year) warranty from the date of purchase.