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Atlantic Technology IWTS-8eSUB


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  • Adding a Subwoofer to Your Home Theater



THX Ultra-certified bone crushing bass--totally invisible
Great movie and music experiences build on a foundation of powerful, accurate bass. Achieving this kind of bass performance at home typically requires large, bulky, and obtrusive enclosures. In addition, the acoustic interaction between rooms and subwoofers degrades bass performance at the listening position. Now, with our inwall subwoofer systems, you can get powerful, accurate, and authoritative deep bass from practically invisible THX Ultra® certified subwoofers that fit in standard 2 x 4 or 2 x 6 studded walls.

Each braced MDF enclosure accommodates a dual 8-inch long-throw woofer assembly, providing roughly the same cone area as a single 12-inch woofer, but with better control and lower distortion. These unique drivers sport a stiff and well-damped Coated Composite Molded Graphite cone, with an unusually strong cone-reinforcing concave dust cap. The vented eight-pound motor and 1.5-inch vented multi-layer voice coil are more typical of those found on a 15-inch driver. Additionally, the baffle is treated with Atlantic's exclusive Resonance Damping Treatment (RDT) to reduce unwanted baffle resonace for clear, articulate bass.


  • In-wall sub, totally hidden from view
  • Dual 8" woofers and 380-watt outboard SA-380 amplifier (amplifier sold separately) 
  • Back box in-wall enclosure available (Required for THX performance)
  • This is the solution to Unbelievable Bass using ZERO floor space
  • Servo-control distortion reduction circuitry in SA-380 amplifier


Drivers: (2) 8” High output woofers, Coated Composite Molded Graphite cones with 8 lbs. motor assemblies

Frequency Response: 20Hz - 100Hz ± 3dB (typical, in room)

Peak Output: Single 102dB, Dual 105dB (3000 cu. ft. space)

Dimensions (H x W x D): Woofer Module: 19-13/16” x 10-5/8” x 3”, IN-BOX-8 SUB Enclosure: 81” x 14” x 3-1/2”


System In-wall
Orientation Front-firing
Amplifier Power (RMS) 380 Watts
Amplifier type Class G
Frequency Response +/-3dB 20-100 Hz
Max in-room SPL 102 dB
Impedance 4 ohms
Driver Size 8-inch
Woofer 2 x 8" composite
Port No
Passive radiator(s) No
Speaker Level Inputs Yes
Speaker level inputs Spring post
Speaker level outputs No
Line level input(s) Mono (SA-380 amp)
Line level output(s) No
Balanced inputs Yes
Phase control 0/180 switch (SA-380 amp)
LP Crossover Frequencies 200 Hz
LP Crossover Type Fixed
Wireless No
Height (inches) 19.8"
Width (inches) 10.6"
Depth (inches) 3"
Enclosure MDF
Grille Plastic
Weight (lbs) 45 lbs
Color White


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