{"product_id":"amina-amina-backbox-cv345","title":"Amina Backbox CV345","description":"Control your space with a Backbox\u003cbr\u003e\u003cbr\u003e\r\n\r\nWhichever speaker you choose, a Backbox can help give consistent audio performance and limit rearward sound transmission. This means more sound for you and less for everyone else. Whether cavity or solid wall, or even in the ceiling, we have a Backbox to suit.\r\n\r\nApplication:\u003cbr\u003e\r\nThe BackboxCV345 is an easy to install, sound proofing backbox for the Amina\r\nEvolution Series speaker models. For use in plasterboard cavity walls (drywalls) and\r\nceilings, the BackboxCV345 creates a sealed enclosure around the back of the\r\nspeaker utilising a specially designed composite sound proofing layer. The\r\nBackboxCV345 is recommended for multispeaker installations where the cavity loading\r\nthe backbox provides will ensure consistent sound quality from all speaker locations.\u003cbr\u003e\u003cbr\u003e\r\n\r\n\r\nInstallation:\u003cbr\u003e\r\nThe BackboxCV345 is designed to be retrofitted into the plasterboard wall or ceiling.\r\nImportantly it is fixed to the plasterboard only (not surrounding studwork) which\r\nreduces potential energy transfer to the wall\/ceiling joists. Our detailed\r\ninstallation guide provides information on how to achieve the correct speaker face\r\nalignment for different types of plaster finishes and plasterboard thicknesses. Optional\r\nalignment shims are also available.\u003cbr\u003e\u003cbr\u003e\r\n\r\nSound Proofing Characteristic:\u003cbr\u003e\r\nThe graph below shows the sound pressure level attenuation of an Amina AIW Evolution\r\nSeries speaker’s rearward output when installed in a BackboxCV345. Over the 150Hz\r\n– 5KHz range the rear firing airborne sound pressure is reduced on average by 26dB.\r\nIt is recommended that additional sound proofing steps are taken if your speakers are\r\ninstalled in a wall or ceiling where bedrooms or other occupied rooms are directly\r\nadjacent. The BackboxCV345 cannot stop mechanically induced noise transmission\r\ninherent in certain building structures. \u003cbr\u003e\u003cbr\u003e\r\n\r\nTechnical Specifications:\u003cbr\u003e\r\nDimensions:500mm x 351mm x 71.5mm\u003cbr\u003e\r\n\r\nPlasterboard cut-out required: 455mm x 350mm\u003cbr\u003e\r\nProduct weight: 2.8Kg (6.2lbs)\u003cbr\u003e\r\nSpeaker cable entry: Rubber grommet (can be replaced by M20\r\ngland)\u003cbr\u003e\r\nSpeaker fixing: Use 4x self tapping flangehead screws (supplied)\u003cbr\u003e\r\nWall fixing: Use 8x self tapping drywall screws (supplied)\u003cbr\u003e\r\nMinimum cavity depth: 75mm (3”)\u003cbr\u003e\r\nSound pressure reduction: -26dB on average over 150Hz - 5kHz range","brand":"Amina","offers":[{"title":"Amina Backbox CV345 (each)","offer_id":57851151057228,"sku":"AMINABACKBOXCV345","price":80.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/amibackboxcv345_85734-1200px.jpg?v=1781882921","url":"https:\/\/www.stoneaudio.co.uk\/products\/amina-amina-backbox-cv345","provider":"Stone Audio","version":"1.0","type":"link"}