{"product_id":"hertz-dbx-30-3-12-4-ohm-subwoofer-enclosure","title":"Hertz DBX 30.3 12\" 4-Ohm Subwoofer Enclosure","description":"\u003cp\u003eThe Hertz DBX 30.3 is a passive 12-inch subwoofer enclosure designed to add low-frequency output to a car audio system without requiring a custom-built box. Its factory enclosure helps simplify a bass upgrade where available trunk or cargo space is limited. It is intended for use with an external amplifier matched appropriately to its 4-ohm load and 250-watt continuous power rating.\u003c\/p\u003e\u003cp\u003eThis enclosure is suited to listeners who want a dedicated bass channel to support full-range door speakers or a factory head unit with added amplification. The 12-inch driver is designed for bass reproduction from 28 to 300 Hz, covering deep low-end content as well as upper-bass impact. With a rated sensitivity of 91 dB SPL, it can be integrated into systems that prioritize efficient output from moderate amplifier power.\u003c\/p\u003e\u003cp\u003eThe DBX 30.3 uses a polypropylene cone with mica injection, a material combination selected for a rigid diaphragm structure. Its cone also features deep surface ribbing to increase rigidity, while the butyl-rubber surround supports driver excursion. A high-density-flux ferrite magnet and 1.5-inch voice coil form the motor system behind the enclosed driver.\u003c\/p\u003e\u003cp\u003eHertz builds the enclosure from thick MDF to provide a rigid cabinet structure for the installed subwoofer. The rear panel is angled to help reduce internal back-wave reflections and to make placement easier in a vehicle. High-current plated terminals provide the connection point for speaker wire from an external amplifier.\u003c\/p\u003e\u003cp\u003eAt 19 inches wide, 8.9 inches deep, and 13.5 inches high, the DBX 30.3 offers a compact factory-enclosure format for a 12-inch subwoofer. It can serve as the bass foundation in an entry-level or moderate-power upgrade system. Pair it with a stable amplifier that delivers power suitable for a 4-ohm, 250-watt continuous subwoofer load, then set crossover and gain controls carefully during installation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12-Inch Subwoofer:\u003c\/strong\u003e Provides dedicated low-frequency reinforcement in a prebuilt enclosure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e250-Watt Continuous Rating:\u003c\/strong\u003e Supports amplifier matching for sustained bass playback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Ohm Impedance:\u003c\/strong\u003e Works with amplifiers rated for a 4-ohm subwoofer load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolypropylene Mica Cone:\u003c\/strong\u003e Combines a rigid cone structure with mineral reinforcement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThick MDF Cabinet:\u003c\/strong\u003e Creates a rigid enclosure structure for the installed driver.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAngled Rear Panel:\u003c\/strong\u003e Helps fit the enclosure against vehicle interior contours.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe DBX 30.3 combines a thick MDF cabinet with an angled rear wall and a high-density-flux ferrite motor. Its polypropylene cone with mica injection, deep cone ribbing, and high-excursion butyl-rubber surround are designed as part of the installed driver system. The enclosure uses high-current plated terminals for its speaker-level connection from an amplifier.\u003c\/p\u003e\u003cp\u003eMount the enclosure securely on a stable vehicle surface so it cannot move during driving, and leave room around the terminal area for wiring. Connect it to an external amplifier that is compatible with a 4-ohm load and configured for the subwoofer's 250-watt continuous rating. Use the amplifier's low-pass crossover and gain settings to blend the enclosure with the vehicle's main speakers rather than using it as a full-range speaker.\u003c\/p\u003e","brand":"Hertz","offers":[{"title":"Default Title","offer_id":45631724191814,"sku":"DBX30-3","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71D0WVWBqaL.jpg?v=1784379824","url":"https:\/\/audiowatt.store\/products\/hertz-dbx-30-3-12-4-ohm-subwoofer-enclosure","provider":"Audio Watt Store","version":"1.0","type":"link"}