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JL Audio - Fathom® ICS-SYS-108

*This item is available in store only.

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(In-Store Only)

In-Ceiling Subwoofer System with Single 8-inch Subwoofer, 300 watts


Created from the same innovative technologies used to develop our free-standing powered subwoofers, the Fathom® ICS in-ceiling subwoofer systems are engineered to deliver outstanding bass performance, with nearly unlimited placement freedom.

Purpose-built to disappear into the ceilings of most home audio/theater environments, the 8-inch Fathom® ICS systems are designed to fit 2" x 6" or larger ceiling joists and a wide range of assembled joist widths, while operating through very small grilles. The grille’s clever design accommodates all common drywall thicknesses and can be easily painted to match a room’s decor.

The subwoofer enclosures utilize extensive architectural features aimed at improving rigidity while keeping a very low profile and minimal wall thickness. A unique port design vents through a slot located at the perimeter of the driver mount to enhance efficiency and low-bass output. Inside the enclosure is a long-excursion, 8-inch thin-line woofer, built to exacting standards by JL Audio for the Fathom® ICS products.

Each 8-inch Fathom® ICS system is driven by a rack-mountable amplifier with up to 600 watts of clean power, programmed specifically for each system, and capable of driving up to two enclosures. A complete set of Fathom® signal processing features is also onboard, including our powerful, 18-band Digital Automatic Room Optimization (D.A.R.O.) system, and high-pass crossover outputs, all accessible via an easy-to-use, menu-driven interface and LCD display. Note: D.A.R.O. functionality requires optional calibration microphone (sold separately).

The ICS-108 System fits 2" x 6" ceiling joists or larger, with assembled joists ranging from 16-inches to 25 1/2-inches on center. Consult your Authorized JL Audio Dealer for specific application information.

Enclosure Finish: Flat Black (hidden from view when installed)

Grille finish: Primer White (paintable)

Enclosure Construction: CNC-Cut Birch Plywood

General Specifications
Enclosure Type Ported
Enclosure Finish Black Texture-Coated
Frequency Response (Anechoic) 24.9 Hz - 109 Hz (± 1.5 dB) -3dB at 24.6 Hz / 111 Hz -10dB at 23.4 Hz / 118 Hz
Effective Piston Area (Sd) 31.62 sq in / 0.0204 sq m
Effective Displacement 47.5 cu in / 0.78 L
Amplifier Power 300 W RMS short-term
Power Mode(s) Off, On or Automatic (Signal-Sensing or 12V Trigger)
12V Trigger Output Capacity 150 mA (1/8-inch/3.5mm mini jack)
Light Modes N/A

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