{"v":"2.0","page_type":"product","title":"Single 12-inch round car subwoofer 300 watts of RMS power handling and 600 watts of peak power handling Stamped steel basket frame with minimal harmonics 1.5-inch voice coil made with copper to keep sub cool Vented aluminum dissipates heat quickly in high SPL situations for a long life Resin-reinforced cotton spider UV-resistant foam surround with immeasurable distortions Injection-molded polypropylene cone creates a deep bass Over-coil venting Ferrite magnet creates a strong magnetic field Reinforced molded ABS adds a clean cover to the back of the subwoofer Push-on terminals use spade connector or solder directly Dual voice coils Similar to HFX12D4 Impedance: 4 ohms Sensitivity: 88 dB Mechanical Q: 5.03 QMS Electrical Q: 0.621 QES Total speaker Q: 0.553 QTS Equivalent compliance VAS: 120.426 liters DC resistance: 2x4 RE Xmax: 9 mm Outside diameter: 12.19 inches Mounting depth: 5.58 inches Mounting height with gasket: 6.25 inches from gasket to magnet cover Dimensions: 14.75 x 14.75 x 8.38 inches Weight: 8 pounds Product warranty: 1-year warranty","breadcrumbs":[{"label":"Home","href":"/python/html6/index.html"},{"label":"Brands","href":"/python/html6/menu_brand_index/menu_brand_index_brands_87101ba214.html"},{"label":"Crunch","href":"/python/html6/menu_brand_products/1000/39000/menu_brand_products_Crunch_1_643f3d8b90.html"},{"label":"PZX12D4","href":null}],"content":{"product":{"mpn":"PZX12D4","manufacturer":"Crunch","brand":"Crunch","brand_url":"/python/html6/menu_brand_products/1000/39000/menu_brand_products_Crunch_1_643f3d8b90.html","title":"Single 12-inch round car subwoofer 300 watts of RMS power handling and 600 watts of peak power handling Stamped steel basket frame with minimal harmonics 1.5-inch voice coil made with copper to keep sub cool Vented aluminum dissipates heat quickly in high SPL situations for a long life Resin-reinforced cotton spider UV-resistant foam surround with immeasurable distortions Injection-molded polypropylene cone creates a deep bass Over-coil venting Ferrite magnet creates a strong magnetic field Reinforced molded ABS adds a clean cover to the back of the subwoofer Push-on terminals use spade connector or solder directly Dual voice coils Similar to HFX12D4 Impedance: 4 ohms Sensitivity: 88 dB Mechanical Q: 5.03 QMS Electrical Q: 0.621 QES Total speaker Q: 0.553 QTS Equivalent compliance VAS: 120.426 liters DC resistance: 2x4 RE Xmax: 9 mm Outside diameter: 12.19 inches Mounting depth: 5.58 inches Mounting height with gasket: 6.25 inches from gasket to magnet cover Dimensions: 14.75 x 14.75 x 8.38 inches Weight: 8 pounds Product warranty: 1-year warranty","description":"","attributes":[{"name":"Brand name","values":[{"value":"Crunch","url":"/python/html6/menu_attr_pair/1000/90000000/90545000/menu_attr_pair_Brandname_Crunch_1_2f3e558a13.html"}],"name_url":"/python/html6/menu_attr_pair/1000/90000000/90545000/menu_attr_pair_Brandname_Crunch_1_2f3e558a13.html"},{"name":"Manufacturer name","values":[{"value":"Crunch","url":"/python/html6/menu_attr_pair/1000/147000000/147525000/menu_attr_pair_Manufacturername_Crunch_1_e99d285f88.html"}],"name_url":"/python/html6/menu_attr_pair/1000/147000000/147525000/menu_attr_pair_Manufacturername_Crunch_1_e99d285f88.html"},{"name":"Manufacturer","values":[{"value":"Crunch","url":"/python/html6/menu_attr_pair/1000/39000000/39088000/menu_attr_pair_Manufacturer_Crunch_1_88a543f0be.html"}],"name_url":"/python/html6/menu_attr_pair/1000/39000000/39088000/menu_attr_pair_Manufacturer_Crunch_1_88a543f0be.html"}],"images":[],"distributors":[{"name":"Walmart","sku":"165568204","url":"https://www.walmart.com/ip/Crunch-600W-12-PZX-Series-Dual-4-Ohm-88-dB-Voice-Coil-Car-Subwoofer-PZX12D4/165568204","pricing":[{"quantity":1,"price_usd":39.99}],"stock":{"available":false,"quantity":null,"lead_time_days":null},"moq":1,"multiple":1,"image":"https://i5.walmartimages.com/asr/450108bc-b90c-4c95-b13b-c255dfe1d868_1.9cb3e5100f211b80dfe86899fc717273.jpeg?odnHeight=450&odnWidth=450&odnBg=FFFFFF"}],"amazon":{"available":false,"products":[]},"metadata":{"generated_date":"2026-09-17","last_updated":"2026-09-17","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"}}