JL Audio Fathom 8" In-Wall Powered Subwoofer System

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$4,000.00 CAD
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In-Wall Subwoofer System with Single 8-inch Subwoofer, 300 watts


Born from the same groundbreaking technologies used to develop our free-standing powered subwoofers, the Fathom® IWS in-wall subwoofer systems deliver remarkable bass performance, while remaining largely concealed within most home audio/theater environments.

The 8-inch Fathom® IWS systems are smaller and easier to integrate than our larger in-wall Fathoms, fitting in all standard, 16-inch, on-center stud openings, and operating through very small grilles. These grilles accommodate all common drywall thicknesses, and can be easily painted to match the wall.

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® IWS products.

Each 8-inch Fathom® IWS system is powered by a rack-mountable amplifier, capable of generating up to 600 watts of clean power and can drive 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, all managed via an easy-to-use, menu-driven interface and LCD display. Note: D.A.R.O. functionality requires optional calibration microphone (sold separately).

The IWS-108 System fits 2" x 4" wall studs or larger. 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

Grille Physical Specifications
Wall Opening Width (W) 9.75 in / 248 mm
Wall Opening Height (H) 9.75 in / 248 mm
Grille Width (W) 10.50 in / 267 mm
Wallboard Thickness Compatibility 0.5 in to 1.75 in / 13 mm to 44 mm
Grille Height (H) 10.50 in / 267 mm
Amplifier Physical Specifications
Note: Single Rack Unit - Amplifier Height Dimensions do not include feet.
Net Weight 13.5 lb / 6.12 kg
Depth (D) 13.63 in / 346 mm
Height (H) 1.75 in / 44 mm
Width (W) 16.84 in / 428 mm
2 x 4-inch Wall Stud Enclosure Physical Specifications
Note: Enclosure dimensions do not include L-brackets or vibration-dampening padding.
Depth (D) 3.25 in / 83 mm
Height (H) 61.26 in / 1,565 mm
Width (W) 14 in / 355 mm
Wall Cavity Height (H) Minimum: 75 in / 1,905 mm
Wall Cavity Width (W) Minimum: 14.375 in / 365 mm Maximum: 15.500 in / 394 mm
Signal Processing
Equalizer Q Range 0.7 to 5.0 (0.1 increments)
Equalizer Gain Range -12 dB to +12 dB (0.2 dB increments)
Equalizer Frequency Range 20 to 160 Hz (1 Hz increments)
Equalizer Bands 3
Calibration Mode Digital Automatic Room Optimization (D.A.R.O.), requires microphone (sold separately)
Subwoofer Outputs Neutrik speakOn® 2-Pole Connectors
(uses Neutrik part: NL2FX)
Line Outputs Stereo or Mono (two RCA jacks - Pass-Through or High-Pass)
Extreme Low Frequency (E.L.F.) Trim Variable, -12 dB to +3 dB at 25 Hz (0.5 dB increments)
Delay (Phase) Variable from 0 – 25 ms 
(0.1 ms increments, Sub and HP outputs)
Polarity 0 or 180 degrees
Filter Defeat Function Yes
Filter Frequency Range 30 Hz - 130.1 Hz
Filter Slope(s) 12/24 dB/octave
Filter Mode(s) Low-Pass, with tracking High-Pass Outputs
Level Control Reference (fixed gain) or Variable from -50dB to +15dB over reference gain (0.5 dB increments)
Input Grounding Isolated or Grounded
Speaker/High-Level Inputs Stereo or Mono (removable plug - Input Impedance of 4.4k Ohms)
Unbalanced Inputs Stereo or Mono (two RCA jacks - Input Impedance of 50k Ohms)
Light Modes N/A
12V Trigger Output Capacity 150 mA (1/8-inch/3.5mm mini jack)
Power Mode(s) Off, On or Automatic (Signal-Sensing or 12V Trigger)
Amplifier Power 300 W RMS short-term
Effective Displacement 47.5 cu in / 0.78 L
Effective Piston Area (Sd) 31.62 sq in / 0.0204 sq m
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
Enclosure Finish Black Texture-Coated
Enclosure TypePorted

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