

Sonus Faber
Natural sound with power and depth.
The Gravis I powered subwoofer offers an ideal balance of size and performance for smaller listening spaces.
Gravis I, the most compact powered subwoofer in the Gravis collection, effortlessly harmonizes with diverse listening environments and audio systems. Gravis I seamlessly complements the aesthetics and acoustic characteristics of the Sonus faber Lumina collection and the smaller Sonetto bookshelf models, such as Sonetto I & II.
ITALIAN DESIGN
Gravis I boasts a compact design that effortlessly blends into any room. Available in four distinctive finishes and adorned with a leather top, embossed with the Sonus faber logo.
SEPARATE VOLUME CONTROLS
The independent volume controls for high-level and line/LFE offer effortless calibration for both music and home theater applications, eliminating the need for constant adjustments. The High-Level Connection ensures a seamless fusion with main speakers during music playback, while the LFE input enhances the immersive home theater experience.
SPEAKER UNIT
Gravis I features an 8” Ultra Long Throw down-firing speaker unit along with a high current 150W Class AB amplifier, giving it accurate and expressive bass reproduction well beyond its class.
REAR PANEL
Gravis I rear panel features a complete connectivity solution that allows for both perfectly blended musical sub bass and powerful, percussive, home theatre bass.
TECH SPECS
System
Closed box loading, down firing active subwoofer
Loudspeakers
Sw: Ø 210 mm, very long throw, treated paper cone,
wide rubber surround woofer
Frequency response
@ - 6dB, from 30 Hz to Fc (user adjustable)
On board amplifiers
High linearity Class AB
150 W rms, 250 W (peak)
Power consumption
0.5 W (Stand-by)
200 W (Rated power)
Audio Input / Output
LFE (Low Frequency Effect) - mono RCA plug; LINE - mono RCA plug; HIGH LEVEL - Neutrik 4-pole Speakon©
Mains Input Voltage
Factory selected, 120 Vac – 60 Hz or 230 Vac - 50 Hz
Decoupling Systems
Rubber pad
Product dimensions (HxWxD)
334 x 286 x 316 mm / unit
13,1 x 11,2 x 12,4 in / unit
Dimensions with packaging (HxWxD)
447 x 437 x 418 mm / unit
17.6 x 17.2 x 16.5 in / unit
Weight
14 Kg / unit
30.9 lb / unit
Packaging weight
17,6 Kg / unit
38.8 lb / unit
Cabinet
Squared shape
Oper pore/ matte/ high gloss wood
Black leather
Fuse
Factory selected
T4.0A (110 Vac, 60 Hz); T2.0A (230 Vac, 50 Hz)
Controls
Independent Master and LFE volume controls
Continuously adjustable Crossover frequency (30 to 120
Hz), slope 24 dB / oct
Signal phase inversion switch (0/180°)
Auto switch - on / off (deselectable)
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