Experience powerful, reference-quality bass with the Sonus Faber Gravis III Reference Subwoofer in Walnut finish (model SBWU30WFI). Designed for high-end audio systems, this active subwoofer delivers deep, tight, and dynamic low frequencies while maintaining Sonus Faber’s signature musicality and elegance.
Equipped with a 12-inch (300 mm) long-throw down-firing driver and a high-performance Class D amplifier rated at 500 W RMS (1000 W peak), the Gravis III produces controlled bass down to approximately 20 Hz, ideal for both audiophile stereo setups and advanced home theatre systems.
Its rear-panel interface includes independent Master and LFE volume controls, a continuously adjustable crossover (30–120 Hz, 24 dB/octave slope), and a phase switch (0°/180°) for precise integration with any speaker system. Despite its power, the compact design (approx. 450 × 400 × 450 mm) allows flexible placement in premium listening environments.
Finished in elegant Walnut, the Gravis III combines high-performance audio with sophisticated aesthetics, making it perfect for luxury listening rooms or high-end home theatre installations.
Features of Sonus Faber Gravis III Reference Subwoofer Walnut Finish SBWU30WFI
- Active reference subwoofer with 12-inch long-throw down-firing driver
- 500 W RMS / 1000 W peak Class D amplification
- Frequency response down to approximately 20 Hz (‑6 dB)
- Independent Master & LFE volume controls, 30–120 Hz adjustable crossover, 0°/180° phase switch
- Italian craftsmanship with premium Walnut finish
- Engineered to integrate with Sonus Faber’s Reference and Gravis series speakers
Applications of Sonus Faber Gravis III Reference Subwoofer Walnut Finish SBWU30WFI
- High-end stereo listening rooms requiring deep, controlled bass
- Luxury home theatre setups needing reference-quality low-frequency performance
- Integration with premium Sonus Faber speakers for cohesive sound
- Music listening environments demanding minimal distortion and precise tonal balance
- Advanced surround sound systems requiring powerful, room-filling bass
Specifications of Sonus Faber Gravis III Reference Subwoofer Walnut Finish SBWU30WFI
| Brand | Sonus Faber |
| Model | Gravis III (SBWU30WFI) |
| Type | Active reference subwoofer |
| Driver | 1 × 300 mm (12″) long-throw woofer |
| Amplifier Power | 500 W RMS / 1000 W peak |
| Frequency Response | From ~20 Hz (‑6 dB) upward to user-adjustable cutoff |
| Crossover Range | 30–120 Hz continuously adjustable (24 dB/octave) |
| Phase Control | 0° / 180° switch |
| Inputs | Line (mono RCA) + LFE (mono RCA) + High-Level (Neutrik 4-pole Speakon®) |
| Dimensions (H × W × D) | 450 × 400 × 450 mm (17.7 × 15.7 × 17.7 in) |
| Weight | 30 kg (66 lb) |
| Finish | Walnut |
| Enclosure Type | Sealed (down-firing) |
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