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Our knowledgeable advisers like Eddie Fields can help you choose and buy the gear you’ll love for years to come. Call, chat, or email us, or come by the showroom!

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Overview

The Gravis I and II subwoofers, the collection representing an ideal compromise between size and performance. 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. GRAVIS II 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)

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FAQs

Please read our FAQs page to find out more.

Do you price match?

Yes. We match any authorised dealer, including big-box retailers. If you find the same product at a lower price, contact us and we'll match it.

Do you offer free shipping?

Yes — free shipping on every order, with 2-day delivery available on most products. Easy returns and exchanges are included.

Where is your showroom?

We're at 6362 Alder Drive, Houston, Texas. The showroom lets you hear and compare reference-level systems in person before making any decisions. If you're considering a larger purchase or installation, it's well worth the visit.

Can I buy online without visiting the showroom?

Yes. The full product range is available through the online store with free nationwide shipping. For more complex system builds, speaking with one of our advisers first tends to lead to a better result.

Do you offer financing?

Yes. Special financing is available through the BrandSource Credit Card for qualifying purchases, allowing you to spread payments over time with no annual fee. Promotional rebate savings are also available periodically. See the financing page for full details.

Do you install systems as well as sell equipment?

Yes — installation is central to what we do. We design and install whole-home audio and video, home theaters, media rooms, outdoor audio, lighting and motorised shades, and full smart home automation.

Do you provide support after installation?

Yes. We provide ongoing service and support to ensure systems continue performing as intended — not just on installation day, but over the long term.