Sonus faber Gravis III – 600W Active Subwoofer

Powerful Bass. Beautifully Refined.

Deep bass should be felt, but it should never overpower the music. The Sonus faber Gravis III combines powerful low-frequency performance, sophisticated digital control, and unmistakable Italian craftsmanship in a beautifully designed active subwoofer.

Featuring a 10-inch long-throw woofer, a 600-watt Class AB amplifier, and a sealed enclosure, Gravis III delivers the depth and control required for high-performance stereo systems and immersive home theaters.

Designed to complement the Sonus faber Olympica Nova Collection, Gravis III brings a cohesive aesthetic and acoustic foundation to sophisticated listening environments.

 

A 10-Inch Woofer with Serious Authority

At the heart of Gravis III is a 250 mm (10-inch) long-throw woofer featuring a sandwich honeycomb cone and wide rubber surround.

Its sealed enclosure is engineered for controlled low-frequency reproduction, while a high-performance Class AB amplifier delivers 600 watts RMS and up to 900 watts of peak power.

With bass extension reaching 25 Hz at -6 dB under the manufacturer's specified default settings, Gravis III adds weight, depth, and impact to everything from acoustic music to demanding cinematic soundtracks.

 

Intelligent Bass. Tailored to Your Room.

Great bass depends on more than power. Room acoustics, speaker placement, and system integration all play an important role.

Gravis III features advanced digital controls through a dedicated app for iOS and Android, allowing you to fine-tune its performance to your listening environment.

Adjust crossover frequency, phase, volume, delay, and parametric equalization directly from your device. Four selectable presets and automatic room calibration provide additional flexibility for optimizing bass performance.

Whether you're integrating Gravis III into a two-channel music system or a dedicated home theater, these controls help achieve a more cohesive listening experience.

 

Italian Craftsmanship, Down to the Details

A subwoofer doesn't have to be an anonymous black box.

Gravis III combines a clean, understated cabinet with an artisan-crafted wood or lacquer top and Sonus faber's signature black leather side panels.

Available finishes include:

• Walnut Wood / Black Leather

• Wenge Wood / Black Leather

• Piano Black Lacquer / Black Leather

Its refined appearance makes Gravis III a natural visual companion to the Olympica Nova Collection and a sophisticated addition to modern listening rooms.

Flexible Connections for Music and Cinema

Gravis III offers multiple connection options for integration into a wide range of audio systems.

Unbalanced RCA inputs accommodate stereo line-level and LFE connections, while a balanced XLR input supports compatible audio components. A high-level Neutrik Speakon connection provides additional flexibility for stereo amplifier integration.

For installations where running a signal cable is impractical, Gravis III also supports Sonus faber's optional wireless Gravis Transmitter.

The result is a versatile subwoofer equally suited to traditional HiFi systems and custom home theater installations.

Key Features

• 10-Inch Long-Throw Woofer: Sandwich honeycomb cone with wide rubber surround.

• 600W Class AB Amplifier: Delivers 600 watts RMS and 900 watts peak.

• Sealed Enclosure: Engineered for controlled bass reproduction.

• 25 Hz Bass Extension: Manufacturer-specified low-frequency response at -6 dB.

• App-Based DSP Control: Adjust crossover, phase, volume, delay, and equalization.

• Automatic Room Calibration: Helps optimize bass performance for your listening environment.

• Four Selectable Presets: Convenient configuration for different listening preferences.

• Versatile Connectivity: RCA, balanced XLR, and high-level Speakon inputs.

• Optional Wireless Integration: Compatible with the Sonus faber Gravis Transmitter.

• Luxury Italian Finishes: Walnut, Wenge, or Piano Black with leather detailing.

Technical Specifications

Technical specifications sourced from the official Sonus faber Gravis III documentation.

 

Experience Sonus faber at The Grid HiFi

At The Grid HiFi in Houston, we specialize in creating high-performance audio systems where every component works together.

Our team can help you integrate the Sonus faber Gravis III into a reference stereo system or luxury home theater, including subwoofer placement, system matching, room calibration, and professional installation.

Whether you're adding depth to your favorite music or building an immersive cinema, The Grid can help you achieve beautifully integrated bass.

Contact The Grid HiFi to explore the Sonus faber Gravis III.