{"v":"2.0","page_type":"product","title":"General features: 12\" subwoofer with dual 4-ohm voice coils Kevlar reinforced pulp cone with HAMRS Santoprene rubber surround frequency response: 24-200 Hz power handling: 300-1,000 watts RMS (500 watts per coil) peak power: 3,000 watts sensitivity: 84.9 dB top-mount depth: 6-3/8\" sealed box volume: 0.75-1.00 cu. ft. ported box volume: 1.25-1.50 cu. ft.","breadcrumbs":[{"label":"Home","href":"/python/html6/index.html"},{"label":"Brands","href":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html"},{"label":"Alpine","href":"/python/html6/menu_brand_products/1000/9000/menu_brand_products_ALPINE_1_45abfa9476.html"},{"label":"swr-12d4","href":null}],"content":{"product":{"mpn":"swr-12d4","manufacturer":"Alpine","brand":"Alpine","brand_url":"/python/html6/menu_brand_products/1000/9000/menu_brand_products_ALPINE_1_45abfa9476.html","title":"General features: 12\" subwoofer with dual 4-ohm voice coils Kevlar reinforced pulp cone with HAMRS Santoprene rubber surround frequency response: 24-200 Hz power handling: 300-1,000 watts RMS (500 watts per coil) peak power: 3,000 watts sensitivity: 84.9 dB top-mount depth: 6-3/8\" sealed box volume: 0.75-1.00 cu. ft. ported box volume: 1.25-1.50 cu. ft.","description":"","attributes":[{"name":"Brand name","values":[{"value":"Alpine","url":"/python/html6/menu_attr_pair/1000/153000000/153342000/menu_attr_pair_Brandname_Alpine_1_6207af13b7.html"}],"name_url":"/python/html6/menu_attr_pair/1000/153000000/153342000/menu_attr_pair_Brandname_Alpine_1_6207af13b7.html"},{"name":"Manufacturer name","values":[{"value":"Alpine","url":"/python/html6/menu_attr_pair/1000/17000000/17388000/menu_attr_pair_Manufacturername_Alpine_1_528ca6fa5f.html"}],"name_url":"/python/html6/menu_attr_pair/1000/17000000/17388000/menu_attr_pair_Manufacturername_Alpine_1_528ca6fa5f.html"},{"name":"Manufacturer","values":[{"value":"Alpine","url":"/python/html6/menu_attr_pair/1000/86000000/86341000/menu_attr_pair_Manufacturer_Alpine_1_d17858c8a8.html"}],"name_url":"/python/html6/menu_attr_pair/1000/86000000/86341000/menu_attr_pair_Manufacturer_Alpine_1_d17858c8a8.html"}],"images":[],"distributors":[{"name":"Walmart","sku":"48453668","url":"https://www.walmart.com/ip/Alpine-SWR-12D4-Type-R-12-Inch-1000W-Subwoofer/48453668","pricing":[{"quantity":1,"price_usd":139.99}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://i5.walmartimages.com/asr/dc1428e1-8bb2-403b-a685-3292b0376b48_1.153f612aef426b2cf04649904ac09051.jpeg?odnHeight=450&odnWidth=450&odnBg=FFFFFF"}],"amazon":{"available":false,"products":[]},"metadata":{"generated_date":"2026-09-16","last_updated":"2026-09-16","data_sources":["Walmart"],"completeness":0.55,"version":"1.2"}}},"pagination":null,"nav":{"home":"/python/html6/index.html","brands":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html","parts":"/python/html6/menu_part_index/menu_part_index_parts_909e6bf0ca.html","attributes":"/python/html6/menu_attr_index/menu_attr_index_attributes_d7f67a250d.html"}}