SoundTube S1.8SIW In-Wall Surround Speaker, Black Gloss Finish

The S1.8SIW blends three-way high-fidelity sound with a slim in-wall profile. Featuring dual 8″ Kevlar-cone woofers, dual 3″ soft-dome midranges, and dual 1.125″ large-format soft-dome tweeters in a ported enclosure, it delivers smooth off-axis dispersion and powerful midbass for immersive surround channels.

Patented S4X™ crossover and driver-control technology ensure phase coherence and impedance stability, allowing seamless integration with any Induction Dynamics home-theater configuration. The detachable magnetic faceplate and Black Gloss finish offer both aesthetic versatility and easy installation.

Key Features

• Drivers:
  • (2) 8″ Kevlar cone woofers with coated foam surround
  • (2) 3″ soft-dome midrange drivers
  • (2) 1.125″ large-format soft-dome tweeters
• Enclosure: Ported, in-wall design with removable magnetic faceplate
• Crossover: Patented S4X™ at 500 Hz & 3.7 kHz for optimal phase and impedance control
• Inputs: Nickel-plated binding posts
• Finish: Black Gloss
• Mounting: Fits standard 2×4 wall cavities (6 in depth)

Technical Specifications

• Depth: 6 in (152.4 mm)
• Height: 29.5 in (749.3 mm)
• Width/Diameter: 13.5 in (342.9 mm)
• Cutout Depth: 6 in (152.4 mm)
• Cutout Width: 12.5 in (317.5 mm)
• Frequency Response (±3 dB): 50 Hz – 20 kHz
• Power for Max SPL: 200 W
• Nominal Impedance: 4 Ω
• Sensitivity: 87 dB @ 1 W/1 m; 90 dB @ 2.83 V/1 m
• Grille Properties: Cloth, snap-fit
• Enclosure Properties: Ported
• Color: Black

What’s Included

• Magnetic cloth grille
• Owner’s manual
• Mounting hardware & hole template