{"product_id":"peavey-1508-4-sps-bwx-replacement-woofer","title":"Peavey 1508-4 SPS BWX Replacement Woofer","description":"\u003cdiv\u003eThe \u003cspan style=\"font-weight: bold;\"\u003eBlack Widow 15\" BWX Loudspeaker\u003c\/span\u003e by \u003cspan style=\"font-weight: bold;\"\u003ePeavey\u003c\/span\u003e uses a variation on the existing Kevlar impregnated cones used on all Black Widows. This cone is stronger and tougher, highly water resistant, and has a specially designed surround.\u003c\/div\u003e \u003cdiv\u003e \u003c\/div\u003e \u003cdiv\u003eThe voice coil assembly uses the thermoset-insulated aluminum ribbon wire, bonded onto an incredibly durable, heat resistant polyimide composite former. The coil wires are solderless diffusion welded to high conductivity OFHC copper foil leads, which are embedded inside the former assembly and soldered to the tinsel leads with high temperature silver solder. The solder joint is then coated with a special thermally conductive silicone adhesive for encapsulation and heat dissipation.\u003c\/div\u003e \u003cdiv\u003e \u003c\/div\u003e \u003cdiv\u003eThe voice coil assembly is bonded to the Kevlar cone and nylon composite spider using a thermoset epoxy originally developed for attaching nose cones to ICBM missiles. The spider and surround are bonded to the frame with a high-strength adhesive.\u003c\/div\u003e \u003cdiv\u003e \u003c\/div\u003e \u003cdiv\u003eThe magnet structure includes subtle changes to its geometry that improve power handling. The driver features a cast aluminum frame, replaceable basket assembly, Rubatex gaskets and spring-loaded terminals.\u003c\/div\u003e \u003cdiv\u003e \u003c\/div\u003e \u003cdiv\u003e\u003cspan style=\"font-weight: bold; text-decoration: underline;\"\u003eSpecifications\u003c\/span\u003e\u003c\/div\u003e \u003cdiv\u003e \u003cul\u003e \u003cli\u003eSpeaker Size: 15\" (380 mm)\u003c\/li\u003e \u003cli\u003eImpedance: 4Ω\u003c\/li\u003e \u003cli\u003ePower Capacity: 2,000W peak, 1,000W program, 500W continuous (per AES 2-1984 50 - 500 Hz)\u003c\/li\u003e \u003cli\u003eSensitivity: 97.5 dB (1 Watt \/1 meter)\u003c\/li\u003e \u003cli\u003eUsable Frequency Range: 40 Hz to 2 kHz\u003c\/li\u003e \u003cli\u003eCone Material: Kevlar impregnated cellulose\u003c\/li\u003e \u003cli\u003eVoice Coil Diameter: 4\" (100 mm)\u003c\/li\u003e \u003cli\u003eVoice Coil\u003c\/li\u003e \u003cul\u003e \u003cli\u003eAluminum ribbon wire\u003c\/li\u003e \u003cli\u003ePolymide-impregnated fiberglass former\u003c\/li\u003e \u003cli\u003eNomex stiffner\u003c\/li\u003e \u003cli\u003eSolderless diffusion welded OFHC copper leads\u003c\/li\u003e \u003c\/ul\u003e \u003cli\u003eDriver Design\u003c\/li\u003e \u003cul\u003e \u003cli\u003eXnom (Ohms): 4\u003c\/li\u003e \u003cli\u003eRevc (Ohms): 3.30\u003c\/li\u003e \u003cli\u003eSd (M2): 0.084\u003c\/li\u003e \u003cli\u003eBL (TM): 12.72\u003c\/li\u003e \u003cli\u003eVas (liters): 163.3\u003c\/li\u003e \u003cli\u003eFo Hz.: 45.9\u003c\/li\u003e \u003cli\u003eCms (uM\/N): 163.3\u003c\/li\u003e \u003cli\u003eMms (gm): 73.5\u003c\/li\u003e \u003cli\u003eQms: 11.20\u003c\/li\u003e \u003cli\u003eQes: 0.433\u003c\/li\u003e \u003cli\u003eQts: 0.417\u003c\/li\u003e \u003cli\u003eXmax (mm): 2.3\u003c\/li\u003e \u003cli\u003eLe (mH): 2.11\u003c\/li\u003e \u003cli\u003eSPL (1W 1m): 97.5\u003c\/li\u003e \u003cli\u003eno (%): 3.60\u003c\/li\u003e \u003cli\u003eVd (milliliters): 23.6\/386\u003c\/li\u003e \u003cli\u003ePmax (w. pgm.): 1000\u003c\/li\u003e \u003cli\u003eDisp in 3\/ml: 197\/3229\u003c\/li\u003e \u003c\/ul\u003e \u003cli\u003eWeight: 17 lb (7.7 kg)\u003c\/li\u003e \u003c\/ul\u003e \u003c\/div\u003e","brand":"Peavey","offers":[{"title":"Default Title","offer_id":32389613486215,"sku":"1508-4-SPS-BWX","price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0319\/3687\/2583\/products\/img_proxy_e498174b-c960-400d-81a2-4c393e23af2e.jpg?v=1582287281","url":"https:\/\/www.balkanimal.com\/products\/peavey-1508-4-sps-bwx-replacement-woofer","provider":"Audiofeen","version":"1.0","type":"link"}