Sonus Faber Gravis I Compact Subwoofer White Finish

Experience refined, powerful bass in a compact form with the Sonus Faber Gravis I Compact Subwoofer in White finish (model SBWU52WFI). This active subwoofer combines Italian craftsmanship and high‑performance audio engineering, making it an ideal match for stereo or home‑theatre setups that demand both elegant aesthetics and deep, musical low‑end.

Featuring an 8‑inch (210 mm) ultra‑long‑throw driver in a down‑firing sealed enclosure, the Gravis I houses a Class AB amplifier rated at 150 W RMS (250 W peak), delivering clean and controlled bass down to approximately 30 Hz.

With dedicated volume controls for both “Master” and “LFE” levels, a continuously adjustable crossover (30‑120 Hz, 24 dB/octave slope), and a phase switch (0°/180°), the subwoofer offers flexible calibration for music or home‑theatre use. Its compact footprint (approx. 334 × 286 × 316 mm) allows for discreet placement while preserving full‑range bass performance.

Finished in elegant White, this subwoofer blends seamlessly with modern interiors while delivering substantial impact. It’s perfectly suited for music‑first listening rooms or high‑end home theatres where both performance and looks matter.

Features

• Compact sealed active subwoofer with down‑firing 8‑inch driver
• 150 W RMS / 250 W peak Class AB amplification
• Frequency response from approximately 30 Hz (‑6 dB) upward to the adjustable cutoff
• Independent Master & LFE volume controls, 30‑120 Hz adjustable crossover, 0°/180° phase switch
• High‑quality Italian craftsmanship with premium White finish
• Designed to match and sonically integrate with Sonus Faber’s premium speaker lines

Specifications