{"product_id":"hertz-mp-250-d4-3-10-dual-4-ohm-subwoofer","title":"Hertz MP 250 D4.3 10\" Dual 4-Ohm Subwoofer","description":"\u003cp\u003eThe Hertz MP 250 D4.3 is a 10-inch component subwoofer designed for car audio systems that need substantial low-frequency output without requiring an oversized enclosure. Its dual 4-ohm voice coil configuration gives system designers flexibility when matching the subwoofer to a compatible amplifier. It is intended for custom enclosures and aftermarket bass upgrades rather than factory replacement locations.\u003c\/p\u003e\u003cp\u003eWith 600 watts continuous power handling and 1,200 watts peak power handling, the MP 250 D4.3 is suited to dedicated subwoofer amplification. Its 83.5 dB sensitivity and 27 Hz resonant frequency support a low-frequency-focused system design. The subwoofer uses a 65 mm, four-layer CCAW voice coil to manage sustained power demands.\u003c\/p\u003e\u003cp\u003eThe pressed-pulp cone incorporates mineral powders for rigidity and damping, while the exponential V-cone profile is shaped to resist deformation during high excursion. A Boundary Free IIR rubber surround increases the available radiating area while maintaining the nominal 10-inch format. Together, these elements support controlled cone motion for bass reproduction in sealed or reflex enclosures.\u003c\/p\u003e\u003cp\u003eHertz builds the MP 250 D4.3 around a high-density-flux ferrite motor and a vented TIL-P voice-coil former. Venting behind the winding helps dissipate heat from the coil assembly. The aluminium alloy basket uses a six-spoke structure with venting beneath the spider to support airflow and reduce basket resonance.\u003c\/p\u003e\u003cp\u003eThis subwoofer can be the bass foundation for a Mille Pro-based system or a standalone upgraded subwoofer stage. Hertz specifies sealed-box use starting at 17 liters, with a 22-liter reflex design also provided by the manufacturer. Its compact enclosure recommendations make it appropriate where controlled bass performance and practical box size both matter.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e600W Continuous Power:\u003c\/strong\u003e Supports use with a properly matched dedicated subwoofer amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual 4-Ohm Voice Coils:\u003c\/strong\u003e Provides wiring flexibility for compatible amplifier configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMineral-Injected Pulp Cone:\u003c\/strong\u003e Combines damping characteristics with structural rigidity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoundary Free IIR Surround:\u003c\/strong\u003e Expands effective radiating area within the 10-inch format.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e65 mm Four-Layer Voice Coil:\u003c\/strong\u003e Uses CCAW windings for sustained power handling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVented Aluminium Alloy Basket:\u003c\/strong\u003e Supports airflow and a rigid mounting structure.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe MP 250 D4.3 uses a high-density-flux ferrite magnet, pressed-pulp mineral cone, IIR rubber surround, and anti-resonant aluminium alloy basket. Its basket has six spokes, built-in venting below the spider, and a CNC-machined diamond-cut edge. The terminal block includes a protective plastic cover and accepts speaker cable up to 8 AWG.\u003c\/p\u003e\u003cp\u003ePlan for a 236 mm (9.29-inch) mounting cutout and approximately 141 mm (5.55 inches) of mounting depth behind the mounting surface. Hertz specifies a sealed enclosure starting at 17 liters (0.60 cu. ft.) and also publishes a 22-liter (0.78 cu. ft.) reflex enclosure design. Confirm available enclosure clearance, amplifier stability at the selected voice-coil wiring configuration, and enclosure construction before installation.\u003c\/p\u003e","brand":"Hertz","offers":[{"title":"Default Title","offer_id":45631777964102,"sku":"MP250D4-3","price":549.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71I6DlOJKuL.jpg?v=1784382579","url":"https:\/\/audiowatt.store\/products\/hertz-mp-250-d4-3-10-dual-4-ohm-subwoofer","provider":"Audio Watt Store","version":"1.0","type":"link"}