Sonus Faber Gravis I review

By Posted 21 November 2021


The Gravis I and II subwoofers, the collection representing an ideal compromise between size and performance. Sonus faber is no stranger to the arena of subwoofer craftsmanship. The first subwoofer project, the Gravis FB100, was launched back in the mid-80's, later followed by Cremona M subwoofers. Today, with the new Gravis collection, Sonus faber returns to its origins, incorporating cutting-edge technology while maintaining its identity of natural sound and quality Italian hand-craftsmanship. Gravis I and II are the smaller subwoofers of the Gravis Collection. These speakers have been designed to be easily integrated into every living environment and ideally matched with almost every kind of audio and audio/video system. In addition Gravis I and II are the perfect match for their loudspeaker siblings: the Sonus Faber Sonetto collection.


The relation with the Sonetto family is clear: from the leather top, soft to the touch and ornamented by the hot branded Sonus Faber logo, to the finishes; Matte White, Piano Black, Wood and Wenge.





Sealed box loading, down firing active subwoofer

1 x 210 mm (8”) long throw, treated paper cone, wide rubber surround LF unit

High linearity Class AB
150 W (nominal), 250 W (peak)

Frequency Response
@ - 6dB, from 30 Hz to Fc (user adjustable)

Mains Input Voltage
Factory selected, 120 Vac – 60 Hz or 230 Vac - 50 Hz

T4.0A (110 Vac, 60 Hz); T2.0A (230 Vac, 50 Hz)

Independent Master and LFE volume controls;
Continuously adjustable Crossover frequency (30 to 120 Hz),
slope 24 dB/oct;
Signal phase inversion switch (0/180°)

Audio Signal Inputs
LFE (Low Frequency Effect) - mono RCA plug; LINE - mono RCA plug; HIGH LEVEL - Neutrik 4-pole Speakon©

Power Consumption
0.5 W (Stand-by)
200 W (rated power)

Dimensions (HxWxD)
334 x 286 x 316 mm including feet
13.1 x 11.2 x 12.4 in including feet

14.5 Kg
32 lb