{"product_id":"adastra-sl4-slimline-4-ceiling-speakers-pair","title":"Adastra SL4 Slimline 4\" Ceiling Speakers (Pair)","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Adastra SL4 is a pair of slimline ceiling speakers built for full range sound without taking up much visual space. Each speaker uses a hi-flex main driver that gives you full range output with extended low frequency response, so you get useful bass alongside clear mid and treble. The result is a discreet setup that fits neatly into most rooms, whether you want background music in the kitchen or a tidier layout for a home cinema.\u003c\/p\u003e\n\u003cp\u003eInstallation is straightforward. The SL4 comes with three spring clips that clamp the speaker to your ceiling once the cut-out is ready, so you don't need extra brackets for this model. Wiring runs to gold-plated spring terminals, which make connecting speaker cable quick and keep a good contact over time. An efficient 2-way crossover network splits the signal, and the flared baffle helps spread sound across a wide area with a dispersion angle of 160 degrees. Each speaker runs at 8 ohms, so they suit most standard amplifiers and multi-room systems.\u003c\/p\u003e\n\u003cp\u003eThese speakers are supplied in pairs and sit within the wider Adastra SL range, which also includes 3\", 5.25\" and 6.5\" versions. The larger SL5 and SL6 models add a mylar tweeter and use three 'dog-ear' mounts rather than spring clips, so you can match the driver size to the room. If you want a low-profile ceiling speaker (called an in-ceiling speaker in the US) that stays out of the way while still filling a room, the SL4 is a sensible choice for everyday listening.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight (each)\u003c\/td\u003e\n\u003ctd\u003e0.60KG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (each)\u003c\/td\u003e\n\u003ctd\u003e71mm x 145mmØ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSPL @ 1W\/1m\u003c\/td\u003e\n\u003ctd\u003e88dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting depth\u003c\/td\u003e\n\u003ctd\u003e70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCutout\u003c\/td\u003e\n\u003ctd\u003e134mmØ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower rms\u003c\/td\u003e\n\u003ctd\u003e20W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e100Hz - 18kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWoofer\u003c\/td\u003e\n\u003ctd\u003e100mmØ (4\") paper cone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e8 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDispersion angle\u003c\/td\u003e\n\u003ctd\u003e160°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eHow are the SL4 speakers fixed to the ceiling?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach SL4 uses three spring clips that clamp onto the ceiling once you've made the cut-out. There's no need for separate brackets with this model.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo the SL4 speakers have a tweeter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The SL4 uses a hi-flex main driver for full range output. The larger 5.25\" and 6.5\" models in the SL range add a mylar tweeter for high frequency reproduction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre these sold individually or as a pair?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe SL4 is supplied as a pair, so you get two speakers in the box.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat amplifier do I need for the SL4?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEach speaker runs at 8 ohms, which suits most standard stereo amplifiers and multi-room systems. Check your amplifier supports an 8 ohm load.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow wide is the sound spread?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe flared baffle gives a dispersion angle of 160 degrees, which helps spread sound across a wide area of the room.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do the SL4 clips differ from the SL5 and SL6?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe SL4 uses three spring clips, while the SL5 and SL6 use three 'dog-ear' mounts. The SL3 uses two spring clips.\u003c\/p\u003e\n","brand":"AVSL","offers":[{"title":"Default Title","offer_id":53272116461835,"sku":"952.546UK","price":39.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/952546UK_0.jpg?v=1785053357","url":"https:\/\/niori.co.uk\/products\/adastra-sl4-slimline-4-ceiling-speakers-pair","provider":"Niori","version":"1.0","type":"link"}