SoundTube S1.8SW On-Wall Surround Speaker, Black Gloss FInish

The S1.8SW brings three-way high-fidelity sound to your surround channels with an 8″ Kevlar-cone woofer, 3″ soft-dome midrange, and 1.125″ large-format soft-dome tweeter, all housed in a ported, on-wall enclosure. Patented S4X™ crossover technology ensures seamless integration, precise phase control, and smooth off-axis dispersion for an immersive home-theater experience.

Finished in Black Gloss with a removable magnetic grille and gold-plated binding-post inputs, the S1.8SW offers both aesthetic flexibility and robust performance up to 200 W RMS. Its shallow profile mounts directly to standard wall studs with included hardware.

Key Features

• Drivers: 8″ Kevlar cone woofer; 3″ soft-dome midrange; 1.125″ large-format soft-dome tweeter
• Enclosure: Ported on-wall design with magnetic cloth grille
• Crossover: Patented S4X™ network at 500 Hz & 3.7 kHz
• Inputs: Gold-plated binding posts
• Finish: Black Gloss
• Mounting: Includes template and hardware for standard wall-stud installation

Technical Specifications

• Height: 29.5 in (749.3 mm)
• Width: 13.5 in (342.9 mm)
• Depth: ~4 in (101.6 mm) *(est.)*
• Frequency Response (±3 dB): 50 Hz – 20 kHz
• Max. Continuous Power (RMS): 200 W
• Nominal Impedance: 4 Ω
• Sensitivity: 87 dB @ 1 W/1 m; 90 dB @ 2.83 V/1 m
• Enclosure Properties: Ported
• Grille Properties: Cloth, snap-fit
• Tweeter Driver: 1.125″ large-format soft dome
• Midrange Driver: 3″ soft dome
• Woofer Driver: 8″ Kevlar cone with coated foam surround