{"product_id":"sonus-faber-gravis-i-subwoofer","title":"Sonus Faber Gravis I Subwoofer","description":"\u003cp\u003e\u003cstrong\u003eCompact, controlled bass for music and home theater.\u003c\/strong\u003e The Sonus Faber Gravis I is the most compact powered subwoofer in the Gravis collection, designed for smaller listening spaces and systems that need deeper low-frequency extension without an oversized cabinet. Its sealed, down-firing architecture combines an 8-inch very-long-throw woofer with a high-linearity 150-watt RMS Class AB amplifier.\u003c\/p\u003e\n\u003ch2\u003eNatural, Expressive Bass in a Compact Cabinet\u003c\/h2\u003e\n\u003cp\u003eThe Gravis I is engineered to add weight and depth while preserving the texture, timing, and musical character of the main loudspeakers. Its treated-paper woofer uses a wide rubber surround and generous excursion to reproduce low frequencies with control, while the closed-box enclosure supports a tight, well-damped response. Bass extends down to 30 Hz at -6 dB, giving music greater scale and home theater soundtracks more impact.\u003c\/p\u003e\n\u003ch2\u003eDesigned to Integrate with Your System\u003c\/h2\u003e\n\u003cp\u003eFlexible controls make the Gravis I suitable for both two-channel and home theater systems. The continuously adjustable 30–120 Hz crossover helps blend the subwoofer with compact bookshelf speakers or larger floorstanding models, while a 0\/180-degree phase switch assists with room placement and timing. Independent Master and LFE volume controls make it easier to optimize playback for different sources and applications.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdjustable crossover from 30 to 120 Hz with a 24 dB-per-octave slope\u003c\/li\u003e\n\u003cli\u003eIndependent Master and LFE level controls\u003c\/li\u003e\n\u003cli\u003eSelectable 0\/180-degree phase\u003c\/li\u003e\n\u003cli\u003eAutomatic signal-sensing power mode that can be switched off\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFlexible Connections for Stereo and Home Theater\u003c\/h2\u003e\n\u003cp\u003eThe rear panel provides three practical connection methods. A mono RCA LFE input connects directly to an AV receiver or surround processor. A separate mono RCA line input supports stereo preamplifiers and integrated amplifiers with a subwoofer output. For traditional two-channel systems without a dedicated sub output, the high-level Neutrik Speakon connection allows the Gravis I to receive a speaker-level signal.\u003c\/p\u003e\n\u003ch2\u003eMade to Complement Sonus Faber Loudspeakers\u003c\/h2\u003e\n\u003cp\u003eSonus Faber designed the Gravis I to visually and acoustically complement the Lumina collection and smaller Sonetto bookshelf speakers, including the Sonetto I and Sonetto II. Its compact proportions also make it an elegant low-frequency partner for many other stereo and home theater systems. A leather top embossed with the Sonus Faber logo adds a distinctive finishing touch.\u003c\/p\u003e\n\u003cp\u003eChoose from four finishes to coordinate with your room and loudspeakers: Walnut Wood, Wenge Wood, Matte White Lacquer, or Piano Black Lacquer.\u003c\/p\u003e\n\u003ch2\u003eSonus Faber Gravis I Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;\" aria-label=\"Sonus Faber Gravis I specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;border:1px solid #ddd;padding:9px;background:#f5f5f5;\"\u003eSystem\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:9px;\"\u003eClosed-box, down-firing active subwoofer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;border:1px solid #ddd;padding:9px;background:#f5f5f5;\"\u003eWoofer\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:9px;\"\u003e210 mm \/ 8 in very-long-throw treated-paper cone with wide rubber surround\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;border:1px solid #ddd;padding:9px;background:#f5f5f5;\"\u003eAmplifier\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:9px;\"\u003eHigh-linearity Class AB; 150 W RMS \/ 250 W peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;border:1px solid #ddd;padding:9px;background:#f5f5f5;\"\u003eFrequency Response\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:9px;\"\u003e30 Hz at -6 dB to user-adjustable crossover frequency\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;border:1px solid #ddd;padding:9px;background:#f5f5f5;\"\u003eCrossover\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:9px;\"\u003eContinuously adjustable 30–120 Hz; 24 dB\/octave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;border:1px solid #ddd;padding:9px;background:#f5f5f5;\"\u003ePhase\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:9px;\"\u003e0\/180-degree inversion switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;border:1px solid #ddd;padding:9px;background:#f5f5f5;\"\u003eInputs\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:9px;\"\u003eMono RCA LFE, mono RCA line-level, Neutrik 4-pole Speakon high-level\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;border:1px solid #ddd;padding:9px;background:#f5f5f5;\"\u003ePower Consumption\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:9px;\"\u003e0.5 W standby; 200 W rated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;border:1px solid #ddd;padding:9px;background:#f5f5f5;\"\u003eU.S. Mains Voltage\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:9px;\"\u003e120 VAC \/ 60 Hz, factory selected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;border:1px solid #ddd;padding:9px;background:#f5f5f5;\"\u003eDimensions\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:9px;\"\u003e13.1 H × 11.2 W × 12.4 D in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;border:1px solid #ddd;padding:9px;background:#f5f5f5;\"\u003eWeight\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:9px;\"\u003e30.9 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;border:1px solid #ddd;padding:9px;background:#f5f5f5;\"\u003eFinishes\u003c\/th\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:9px;\"\u003eWalnut Wood, Wenge Wood, Matte White Lacquer, Piano Black Lacquer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eIn the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSonus Faber Gravis I powered subwoofer\u003c\/li\u003e\n\u003cli\u003eAC power cord\u003c\/li\u003e\n\u003cli\u003eOwner's documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eContact Audio Exchange for finish availability, system-matching advice, or help integrating the Gravis I into a two-channel or home theater system.\u003c\/p\u003e","brand":"Sonus Faber","offers":[{"title":"Walnut Wood","offer_id":45589895446575,"sku":"SBWU51RFI","price":1100.0,"currency_code":"USD","in_stock":true},{"title":"Wenge Wood","offer_id":45589895479343,"sku":"SBWU51EFI","price":1100.0,"currency_code":"USD","in_stock":true},{"title":"Piano Black Lacquer","offer_id":45589895512111,"sku":"SBWU51BFI","price":1100.0,"currency_code":"USD","in_stock":true},{"title":"Matte White Lacquer","offer_id":45589895544879,"sku":null,"price":1100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0235\/1375\/9791\/files\/sonus-faber-gravis-i-walnut.jpg?v=1783727270","url":"https:\/\/audio-exchange.com\/products\/sonus-faber-gravis-i-subwoofer","provider":"Audio-Exchange","version":"1.0","type":"link"}