CLASS & POWER
Gravis I & II
Extraordinary performance, Italian sound
The Gravis I and II subwoofers, the collection representing
an ideal compromise between size and performance.
BLAST FROM THE PAST
Sonus faber is not new to the arena of subwoofer design and engineering. The first subwoofer project, the Gravis FB100, was launched back in 1986, later followed Cremona M subwoofers. Today, with the new Gravis collection, Sonus faber returns to its roots, incorporating cutting-edge technology while maintaining its identity of natural sound and quality Italian hand-craftsmanship.
THE COMPLETION
OF THE PINNACLE
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.
FEATURES
Gravis I and II deliver incredibly powerful
performance from compact subwoofers.
TECHNICAL SPECIFICATIONS
SYSTEM
Sealed box loading, down firing active subwoofer
SPEAKERS
1 x 210 mm (8”) long throw, treated paper cone, wide rubber surround LF unit
AMPLIFICATION
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
FUSE
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°)
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
WEIGHT
14.5 Kg
32 lb
SYSTEM
Drone cone phase-inverter loading, active subwoofer
SPEAKERS
1 x 260 mm (10”) long throw, treated paper cone, wide rubber surround LF unit
Drone cone: 1 x 260 mm (10”) long throw, treated paper cone, wide rubber surround ABR unit
AMPLIFICATION
High linearity Class AB
350 W (nominal), 700 W (peak)
FREQUENCY RESPONSE
@ - 6dB, from 25 Hz to Fc (user adjustable)
MAINS INPUT VOLTAGE
Factory selected, 120 Vac – 60 Hz or 230 Vac - 50 Hz
FUSE
T6.3A (110 Vac, 60 Hz); T3.15A (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°)
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)
450 W (Rated power)
DIMENSIONS (HxWxD)
404 x 356 x 408 mm including feet
15.9 x 14 x 16 in including feet
WEIGHT
21.5 Kg
47.3 lb
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