{"product_id":"bishopsound-delta-18-birch-plywood-passive-1000w-rms-touring-grade-subwoofer","title":"BishopSound Delta 18\" Birch Plywood Passive 1000w RMS Touring Grade Subwoofer","description":"\u003cp\u003eDescriptionMade in Britain from 18mm 13-ply braced, air pocket free BB grade birch plywood and 1000w RMS (4000w peak). Available in 4 ohms and 8 ohms.\u003c\/p\u003e \u003cp\u003eBritish engineering enables this ported subwoofer to go down to 30 Hz - with a max SPL of 134dB. We manufacture the cast alloy 1kw driver so we control the performance and quality of this subwoofer.\u003c\/p\u003e \u003cp\u003eThe cabinet is finished in 4 coats of Heavy Duty black splatter PU paint it will withstand all the knocks and scrapes gathered through touring. No crossover is fitted in the box as all users should use a speaker management processor.\u003c\/p\u003e \u003cp\u003e\u003cbr\u003eImportant information about subwoofers\u003c\/p\u003e \u003cp\u003eSubwoofers are designed to reproduce low-bass audio signals between 30Hz and 150Hz. Driving them with full frequencies will cause permanent damage, so they should only be operated with a passive low-pass filter, a crossover network, or an active electronic crossover or speaker management system.\u003cbr\u003eTechnical SpecificationsProduct Weight\u003cbr\u003e42kg\u003cbr\u003eProduct Depth\u003cbr\u003e58cm\u003cbr\u003eProduct Height\u003cbr\u003e68cm\u003cbr\u003eProduct Width\u003cbr\u003e73cm\u003cbr\u003eRMS Power\u003cbr\u003e1000w\u003cbr\u003ePeak Power\u003cbr\u003e4000w\u003cbr\u003eAudio Type:\u003cbr\u003ePassive\u003cbr\u003eLF Type\u003cbr\u003eFerrite BDP18 with 4\" Voice Coil\u003cbr\u003eTop hat\u003cbr\u003e20mm threaded Inverted in top of the cabinet for pole mount\u003cbr\u003eForce Factor\u003cbr\u003eBL: 20.87 Wb\/m\u003cbr\u003eEquivalent Acoustic Volume\u003cbr\u003e219.7 It\u003cbr\u003eAcoustic foam\u003cbr\u003ebehind grill to prevent water and dust ingression\u003cbr\u003eGrill\u003cbr\u003ePowder coated punched steel thick metal\u003cbr\u003eFrequency Range\u003cbr\u003e30~250 Hz\u003cbr\u003eImpedance:\u003cbr\u003e8 Ohm or 4 Ohm (select at time of order)\u003cbr\u003eMax SPL:\u003cbr\u003e134db\u003cbr\u003eSuggested x\/over point\u003cbr\u003e105 DB\u003cbr\u003eConnections:\u003cbr\u003eSpeakon connector x 2 (in and out)\u003c\/p\u003e","brand":"Simply Sound and Lighting","offers":[{"title":"Default Title","offer_id":46235240530240,"sku":"163-BD118S","price":951.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/9322\/1184\/files\/f11c6b9a-baee-4659-9277-9981d5bb2cd9.jpg?v=1692222604","url":"https:\/\/www.simplysoundandlighting.co.uk\/products\/bishopsound-delta-18-birch-plywood-passive-1000w-rms-touring-grade-subwoofer","provider":"Simply Sound and Lighting","version":"1.0","type":"link"}