{"title":"Ex-Demo Subwoofers","description":"","products":[{"product_id":"sonus-faber-gravis-ii-subwoofer-ex-demonstration","title":"Sonus Faber Gravis II Subwoofer - Ex-Demonstration","description":"\u003cstyle\u003e\n  .hb-tabs { margin: 18px 0; border: 1px solid rgba(0,0,0,0.12); border-radius: 10px; overflow: hidden; }\n  .hb-tabs input { display: none; }\n  .hb-tab-labels { display: flex; gap: 0; border-bottom: 1px solid rgba(0,0,0,0.12); background: rgba(0,0,0,0.03); }\n  .hb-tab-labels label {\n    flex: 1;\n    padding: 12px 14px;\n    cursor: pointer;\n    font-weight: 600;\n    text-align: center;\n    user-select: none;\n  }\n  .hb-panels { padding: 14px 16px; background: #fff; }\n  .hb-panel { display: none; }\n\n  #hb-sonus-faber-gravis-ii-tab-1:checked ~ .hb-tab-labels label[for=\"hb-sonus-faber-gravis-ii-tab-1\"],\n  #hb-sonus-faber-gravis-ii-tab-2:checked ~ .hb-tab-labels label[for=\"hb-sonus-faber-gravis-ii-tab-2\"] {\n    background: #fff;\n    border-bottom: 2px solid rgba(0,0,0,0.65);\n  }\n\n  #hb-sonus-faber-gravis-ii-tab-1:checked ~ .hb-panels #hb-sonus-faber-gravis-ii-panel-1,\n  #hb-sonus-faber-gravis-ii-tab-2:checked ~ .hb-panels #hb-sonus-faber-gravis-ii-panel-2 {\n    display: block;\n  }\n\n  .hb-panels h3 { margin: 18px 0 12px; font-size: 1.05em; }\n  .hb-panels p { margin: 20px 0 6px; }\n  .hb-panels ul { margin: 8px 0 20px 18px; }\n\u003c\/style\u003e\n\u003cdiv class=\"hb-tabs\"\u003e\n\u003cinput checked id=\"hb-sonus-faber-gravis-ii-tab-1\" name=\"hb-sonus-faber-gravis-ii-tabs\" type=\"radio\"\u003e \u003cinput id=\"hb-sonus-faber-gravis-ii-tab-2\" name=\"hb-sonus-faber-gravis-ii-tabs\" type=\"radio\"\u003e\n\u003cdiv class=\"hb-tab-labels\"\u003e\n\u003clabel for=\"hb-sonus-faber-gravis-ii-tab-1\"\u003eProduct Summary \u0026amp; Benefits\u003c\/label\u003e \u003clabel for=\"hb-sonus-faber-gravis-ii-tab-2\"\u003eTech Specs \u0026amp; Box Contents\u003c\/label\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hb-panels\"\u003e\n\u003cdiv id=\"hb-sonus-faber-gravis-ii-panel-1\" class=\"hb-panel\"\u003e\n\u003ch3\u003eProduct Summary\u003c\/h3\u003e\n\u003cp\u003eThe Sonus faber Gravis II is an active subwoofer designed to bring greater depth, weight and authority to music and home cinema systems while retaining the elegant styling associated with Sonus faber. Compact enough to integrate into a wide range of rooms, it is particularly well matched visually and sonically with the Sonetto collection.\u003c\/p\u003e\n\u003cp\u003eAt its heart is a 260 mm very long throw treated paper cone woofer, partnered with a 260 mm long throw passive radiator. This combination helps the Gravis II deliver powerful, controlled low frequencies with the texture and responsiveness needed for both musical bass lines and cinematic effects.\u003c\/p\u003e\n\u003cp\u003eA high-linearity Class AB amplifier provides 350 W RMS power, with peak output up to 700 W, giving the subwoofer the drive required for confident low-end performance. Rear-panel controls include independent Master and LFE volume settings, adjustable crossover frequency, phase switching and auto on\/off, making it easier to tune the Gravis II to suit different systems and listening spaces.\u003c\/p\u003e\n\u003cp\u003eFinished with Sonus faber’s distinctive wood or lacquer cabinet options and black leather detailing, the Gravis II adds low-frequency impact without compromising the look of a refined hi-fi or AV setup.\u003c\/p\u003e\n\u003cp\u003eThis is an ex-demonstration subwoofer that has been very well cared for. It comes supplied with original boxing and accessories.\u003c\/p\u003e\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdds deeper, more powerful bass to music, films and television without overwhelming the rest of the system\u003c\/li\u003e\n\u003cli\u003eLong throw 260 mm woofer and matching passive radiator deliver low frequencies with scale, control and precision\u003c\/li\u003e\n\u003cli\u003e350 W RMS Class AB amplification provides confident output for demanding stereo and AV systems\u003c\/li\u003e\n\u003cli\u003eIndependent Master and LFE volume controls make it easier to optimise bass separately for music and home cinema use\u003c\/li\u003e\n\u003cli\u003eAdjustable crossover and phase controls help the subwoofer blend smoothly with your main speakers\u003c\/li\u003e\n\u003cli\u003eCompact cabinet design makes it easier to accommodate in living rooms and dedicated listening spaces\u003c\/li\u003e\n\u003cli\u003eDesigned to complement Sonus faber loudspeakers, especially the Sonetto collection\u003c\/li\u003e\n\u003cli\u003eElegant cabinet with wood or lacquer colour options and black leather detailing\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e2 years standard manufacturer's warranty, extendable to 3 years on subwoofer electronic boards and drivers when registered with Sonus faber within 30 days of purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"hb-sonus-faber-gravis-ii-panel-2\" class=\"hb-panel\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSubwoofer Type\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: Active subwoofer\u003c\/li\u003e\n\u003cli\u003eSystem: Passive radiator bass-reflex loading active subwoofer\u003c\/li\u003e\n\u003cli\u003eWoofer: 260 mm very long throw treated paper cone woofer with wide rubber surround\u003c\/li\u003e\n\u003cli\u003ePassive Radiator: 260 mm long throw treated paper cone ABR unit with wide rubber surround\u003c\/li\u003e\n\u003cli\u003eDecoupling System: Rubber pad\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFrequency Response: From 25 Hz to Fc, user adjustable at -6 dB\u003c\/li\u003e\n\u003cli\u003eAmplifier Type: High-linearity Class AB\u003c\/li\u003e\n\u003cli\u003eAmplifier Power: 350 W RMS, 700 W peak\u003c\/li\u003e\n\u003cli\u003eCrossover Frequency: Continuously adjustable from 30 Hz to 120 Hz\u003c\/li\u003e\n\u003cli\u003eCrossover Slope: 24 dB \/ octave\u003c\/li\u003e\n\u003cli\u003ePhase Control: 0 \/ 180° signal phase inversion switch\u003c\/li\u003e\n\u003cli\u003eAuto Switch-On \/ Off: Deselectable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eConnections \u0026amp; Controls\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInputs: LFE mono RCA, Line mono RCA and High Level Neutrik 4-pole Speakon\u003c\/li\u003e\n\u003cli\u003eControls: Independent Master and LFE volume controls\u003c\/li\u003e\n\u003cli\u003eMains Input Voltage: Factory selected, 120 V AC 60 Hz or 230 V AC 50 Hz\u003c\/li\u003e\n\u003cli\u003ePower Consumption: 0.5 W standby, 450 W rated power\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions (H × W × D): 404 × 356 × 408 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 19.1 kg per unit\u003c\/li\u003e\n\u003cli\u003eCabinet: Squared shape with open-pore, matte or high gloss wood\/lacquer finish and black leather\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat’s in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSonus faber Gravis II active subwoofer\u003c\/li\u003e\n\u003cli\u003ePower cable\u003c\/li\u003e\n\u003cli\u003eHigh Level Neutrik Speakon cable\u003c\/li\u003e\n\u003cli\u003eProduct documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sonus Faber","offers":[{"title":"Default Title","offer_id":57988188504451,"sku":null,"price":1000.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0160\/4606\/3670\/files\/Untitled_3500x3500px_-2026-05-06T140601.961.png?v=1778073609"}],"url":"https:\/\/www.holburnonline.co.uk\/collections\/ex-demo-subwoofers.oembed","provider":"Holburn Online","version":"1.0","type":"link"}