Sonus Faber Gravis VI
Kinda Soggy
Bass
53/100
Integration
50/100
Dynamics
50/100
Build Quality
50/100
Features Usability
72/100
Value for Money
80/100
The Gravis VI pairs dual long-throw drivers and 1,700W Class AB power with unusually deep claimed extension, while app-based tuning invites serious room optimization. Audiophilepure found its Streaming Mode meaningfully reshapes the balance, adding mid-bass weight around 50Hz for a fuller, more tailored presentation. It is a feature-rich flagship subwoofer with precision-minded flexibility.
Pros
Streaming Mode provides a clearly distinct voicing, adding useful fullness around 50Hz.
Cons
No dedicated measurement microphone is included, limiting calibration precision compared with a proper external mic.
Three of the four EQ presets have only subtle tonal differences, reducing their practical usefulness.
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What Reviewers Are Saying
Assessments of Build Quality, Usability, and Overall Propositions.
Bass
53/100
The review identifies a meaningful tonal difference in Streaming Mode, which adds a boost around 50 Hz and rolls off more steeply below 30 Hz. It offers no broader listening assessment of low-bass extension, texture, control, or output authority.
Integration
50/100
The reviewer says the tonal differences among three of the four presets are so subtle that moving one's head can create larger perceived shifts. There is no direct report of seamless blending with main speakers, localization, boom, or overhang; Features ≠ Integration; add outcome evidence or lower Integration.
Dynamics
50/100
The review does not describe transient punch, large-scale impact, headroom, or behavior at demanding playback levels. Its comments focus on preset voicing rather than dynamic performance.
Build Quality
50/100
The review says little about cabinet integrity, finish quality, driver durability, or amplifier reliability. It does not provide a hands-on assessment of the Gravis VI's construction.
Features Usability
72/100
The Gravis VI offers app-based adjustment and four EQ presets, but the reviewer finds the preset differences largely too subtle to be especially useful. They also criticize the absence of an included measurement microphone, particularly at this level, since it would improve calibration over a smartphone's built-in mic.
Value for Money
80/100
At a stated price range of $6,950-$8,250, the reviewer feels the Gravis VI omits niceties they expect from a subwoofer of this caliber. The missing measurement microphone and limited distinction between most presets make the premium harder to justify, though the review does not directly compare its performance with competing subwoofers.
Reviews & Sources
Professional reviews and sources for this product's Watt'n Potatoes analysis.
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Specifications
- System
- Sealed box loading, twin drivers, active subwoofer
- Loudspeakers
- Sw: Ø 2x320 mm, long throw, sandwich honeycomb cone, wide rubber surround LF unit
- Frequency response
- @ - 6dB acoustic Linkwitz 4th order roll-on, default setting from 18 Hz to Fc (user continuously adjustable)
- On board amplifiers
- High performance Class AB 1700 W rms, 2400 W (peak)
- Power consumption
- < 2 W (Stand-by) 2100 W (Rated power)
- Audio Input / Output
- 2x LINE (unbalanced), Left and Right/LFE - RCA plugs 2x LINE (balanced) - XLR plug HIGH LEVEL - Neutrik 4-pole Speakon© plug
- Mains Input Voltage
- 100 - 120 Vac – 50 / 60 Hz or 220 - 240 Vac – 50 / 60 Hz Factory selected
- Decoupling Systems
- Rubber pad
- Product dimensions (HxWxD)
- 616 x 448 x 585 mm / unit 24 x 17,6 x 23 in / unit
- Dimensions with packaging (HxWxD)
- 810 x 600 x 725 mm / unit 31.9 x 23.6 x 28.5 in / unit
- Weight
- 52 Kg / unit 114.6 lb / unit
- Packaging weight
- 60 Kg / unit 132.3 lb / unit
- Cabinet
- Squared cabinet High gloss wood Black leather Aluminum
- Fuse
- T12A H250V (100-120 Vac – 50/60 Hz) T6.3A H250V (220-240 Vac – 50/60 Hz)
- Controls
- Direct access Master volume. APP control featuring: 4 selectable presets, volume, continuously adjustable crossover frequency (40 to 150 Hz , filtering slope 24 dB/oct); continuously adjustable signal phase (0° to 360°); up to 8 parametric EQ filters, delay (1 to 20 ms); automatic room calibration; selectable threshold auto power on/off
Manufacturer's Description — Sonus Faber
The Gravis VI active subwoofer meticulously balances power, precision, and Sonus faber’s Natural Sound signature.
DEEP BASS EXTENSION
Strength and Design at the highest level.
PRECISION AND ELEGANCE
Exemplifying the pinnacle of power and elegance, the Gravis VI active subwoofer is meticulously crafted to deliver striking bass performance to the highest performance speaker systems. Gravis VI is matched both acoustically and socially with the Sonus faber Reference collection.
ICONIC SONUS FABER DESIGN
Each Gravis VI subwoofer boasts an artisan-crafted wooden or lacquer top, enhancing its aesthetic allure. With its sleek, unembellished body, the design radiates a sense of purity and sophistication, complemented by Sonus faber’s signature leather finish on the sides.
THE PURSUIT OF DEPTH
Gravis adds beauty and depth to Sonus faber’s Natural Sound signature
EXPERTISE AND ARTISANSHIP
Gravis melds decades of Sonus faber design and audio expertise into a contemporary package, enhancing the depth and clarity of our Natural Sound signature in a seamlessly integrated design.
THE REAR PANEL
The Gravis VI subwoofer offers versatile connectivity, accommodating both high-level and low-level signals. The high-level input employs a Speakon© 4-pin connector, while the line-level signals can be transmitted via balanced or unbalanced cables.
SPEAKER UNIT
Gravis VI features a potent 12” (305mm) long-stroke driver equipped with a Trilaminated sandwich cone diaphragm. This diaphragm is constructed from two layers of woven synthetic fibers (Fiberglass) with a nomex honeycomb layer in between, enabling precise control of driver excursion and resistance flexing. The cone's remarkable blend of stiffness and lightweight design ensures that Gravis VI delivers both massive air movement and precise articulation.
WIRELESS PAIRING
Gravis VI can be wirelessly paired by using the Gravis Transmitter. The Gravis Transmitter transmits signals in wireless mode to the Gravis VI active subwoofer, with maximum versatility in a compact form that is easy to integrate into any listening environment.
DEDICATED APP
The Gravis VI is fully controllable through dedicated, user-friendly app. Available for iOS and Android systems, this app makes the subwoofers simple to configure and use.
Verified Dealers
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Authorized dealers for Sonus Faber Gravis VI
- Absoulute Audio plus Video — in-store — Aiken, South Carolina, United States (website)
- 110Hz — online and in-store — Kielce, Województwo świętokrzyskie, Poland (website)
- A Tube High Fidelity — online and in-store — Almere, Flevoland, Netherlands (website)
- ABSOLUTE ADOBE — in-store — Port Erin, Port Erin, United Kingdom (website)
- Absolute Sound (SG) — online and in-store — Singapore, Singapore (website)
- Acoustic Designs Inc. — in-store — Scottsdale, Arizona, United States (website)
- Ahead Stereo — in-store — Los Angeles, California, United States (website)
- Alpha High End — online and in-store — Brasschaat, Vlaams Gewest, Belgium (website)
- Anquan — online and in-store — Glika Nera, Greece (website)
- Arctic Audio — in-store — Fargo, North Dakota, United States (website)
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