{"product_id":"subwoofer-hertz-mp-300-d4-3-pro-12-600w-rms-4-4ω-mille-pro-v-cone","title":"Hertz MP 300 D4.3 PRO Subwoofer - 12\" - 600W RMS - 4+4Ω - Mille PRO - V-Cone","description":"\u003ch3\u003eHighlights\u003c\/h3\u003e\u003cul\u003e\n\n\u003cli\u003e12-inch Mille PRO subwoofer for extraordinary performance in a compact volume\u003c\/li\u003e\n\n\u003cli\u003e600W RMS power and 1200W peak power\u003c\/li\u003e\n\n\u003cli\u003eMineral-powder-loaded cellulose membrane (Legend technology)\u003c\/li\u003e\n\n\u003cli\u003eV-cone® profile for maximum rigidity and piston-like operation\u003c\/li\u003e\n\n\u003cli\u003eBoundary Free Surround technology for superior emissive surface\u003c\/li\u003e\n\n\u003cli\u003e65 mm 4-layer voice coil on TIL-P former\u003c\/li\u003e\n\n\u003cli\u003e4Ω + 4Ω impedance for maximum versatility\u003c\/li\u003e\n\n\u003cli\u003eOptimized ventilation system without bottom plate drilling\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eExtraordinary performance in a compact volume: this is the challenge of Mille PRO car audio subwoofers. With the solid experience gained with Mille Legend, the R\u0026amp;D team optimized the production process to offer the \"Hertz Sound Experience\" to the greatest number of people, by re-employing the technologies and materials from this flagship line.\u003c\/p\u003e\u003ch4\u003eMEMBRANE AND CONE\u003c\/h4\u003e\u003cp\u003eThe MP 300 D4.3's membrane is made of mineral-powder-loaded cellulose, the same construction technique as for Legend. The V-cone® profile increases rigidity, allowing the cone to operate like a piston. The surround is made of very pure IIR butyl.\u003c\/p\u003e\u003ch4\u003eBOUNDARY FREE SURROUND\u003c\/h4\u003e\u003cp\u003eAs with the Legend ML 2000.3 and ML 2500.3, Mille PRO subwoofers use Boundary Free Surround technology, which allows for a larger emissive surface at the same diameter, for higher sound pressure.\u003c\/p\u003e\u003ch4\u003eCOMPACT BASKET\u003c\/h4\u003e\u003cp\u003eThe compact, anti-resonant, six-spoke aluminum basket is the same as for the ML 2500.3; it contributes to the subwoofer's mechanical damping by being totally acoustically transparent.\u003c\/p\u003e\u003ch4\u003eHIGH-PERFORMANCE VOICE COIL\u003c\/h4\u003e\u003cp\u003eThe 65 mm diameter, 4-layer voice coil wound on a TIL-P former is over 60 mm high to allow for larger displacements. The 4Ω + 4Ω impedance enhances versatility by allowing the use of any type of amplifier.\u003c\/p\u003e\u003ch4\u003eOPTIMIZED VENTILATION SYSTEM\u003c\/h4\u003e\u003cp\u003eThe ventilation and pressure relief system avoids the need for drilling in the bottom plate, with the following advantages:\u003c\/p\u003e\u003cul\u003e\n\n\u003cli\u003eBetter thermal inertia for lower operating temperatures during musical transients\u003c\/li\u003e\n\n\u003cli\u003eBetter magnetic field induction in the coil with the same motor size. Thanks to the high iron content in the pole pieces, the probability of magnetic saturation decreases by making the most of the flux density generated by the magnet\u003c\/li\u003e\n\n\u003cli\u003ePossibility of installing the subwoofer on the rear wall, taking advantage of its compact dimensions. A damping disc is supplied with the product, allowing it to be fixed to the enclosure via the 10 pre-drilled holes\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003ch4\u003eOPTIMIZED COOLING\u003c\/h4\u003e\u003cp\u003eThe orifices around the voice coil and the 10 holes in the back plate allow for better air exchange with the inside of the windings, forcing air to pass through the air gap to maintain a low operating temperature even during the most extreme musical passages.\u003c\/p\u003e\u003ch4\u003ePROFESSIONAL CONNECTORS\u003c\/h4\u003e\u003cp\u003eConnection is made via solid push-in connectors with short-circuit protection, accepting 8 AWG cables for the lowest possible resistance in low-impedance (1Ω) configurations.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width: 100%; border-collapse: collapse;\"\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e300 mm (12\")\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eContinuous Power (RMS)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e600 W\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003ePeak Power\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e1200 W\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eImpedance\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e4+4 Ω\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eSubwoofer\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eVoice Coil Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e65 mm (2.5\")\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eMagnet Size (D x d x h)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e165 x 75 x 35 mm (6.5 x 2.95 x 1.38\")\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e8.63 kg (19.03 lbs)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eMagnet\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eHigh Flux Density Ferrite\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eCone\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eWater-repellent Pressed Paper (V-cone®)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eSurround\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eVery Pure IIR Butyl\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eLinear Excursion (Xmax)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e17 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eMechanical Excursion (Xmech)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e±27 mm (1.06\")\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/table\u003e\u003ch3\u003eThiele \u0026amp; Small Parameters\u003c\/h3\u003e\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width: 100%; border-collapse: collapse;\"\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eSd (Cone Area)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e260 cm²\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eXmax (Linear Excursion)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e17 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eRe (Voice Coil Resistance)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e1.9 Ω\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eFs (Resonant Frequency)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e24 Hz\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eLe (Voice Coil Inductance)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e1.6 mH\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eVas (Equivalent Air Volume)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e74 liters\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eMms (Moving Mass)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e235 g\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eCms (Suspension Compliance)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e0.19 mm\/N\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eBL (Force Factor)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e12 T•m\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eQts (Total Q Factor)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e0.42\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eQes (Electrical Q Factor)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e0.45\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eQms (Mechanical Q Factor)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e5.9\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eSPL (Sensitivity)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e86 dB\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/table\u003e\u003ch3\u003eMounting Dimensions\u003c\/h3\u003e\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width: 100%; border-collapse: collapse;\"\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eOverall Diameter (A)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e321 mm (12.64\")\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eMounting Hole Diameter (B)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e287 mm (11.3\")\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eMounting Depth (C)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e187 mm (7.36\")\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eMagnet Depth (D)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e164 mm (6.46\")\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/table\u003e\u003ch3\u003eWhy Choose It\u003c\/h3\u003e\u003cul\u003e\n\n\u003cli\u003e12-inch Mille PRO subwoofer offering the Hertz Sound Experience to the greatest number of people\u003c\/li\u003e\n\n\u003cli\u003eTechnologies and materials from the flagship Legend line for exceptional performance\u003c\/li\u003e\n\n\u003cli\u003eMineral-powder-loaded cellulose membrane (same technique as Legend)\u003c\/li\u003e\n\n\u003cli\u003eV-cone® profile for maximum rigidity and piston-like operation\u003c\/li\u003e\n\n\u003cli\u003eVery pure IIR butyl surround for durability and consistent performance\u003c\/li\u003e\n\n\u003cli\u003eBoundary Free Surround technology for superior emissive surface\u003c\/li\u003e\n\n\u003cli\u003eHigher sound pressure at the same diameter\u003c\/li\u003e\n\n\u003cli\u003eCompact, anti-resonant, six-spoke aluminum basket (same as ML 2500.3)\u003c\/li\u003e\n\n\u003cli\u003eOptimal mechanical damping and total acoustic transparency\u003c\/li\u003e\n\n\u003cli\u003e65 mm diameter 4-layer voice coil on TIL-P former\u003c\/li\u003e\n\n\u003cli\u003eVoice coil height greater than 60 mm for large displacements\u003c\/li\u003e\n\n\u003cli\u003eLinear excursion (Xmax) of 17 mm for significant air movement\u003c\/li\u003e\n\n\u003cli\u003eMechanical excursion (Xmech) of ±27 mm for extreme performance\u003c\/li\u003e\n\n\u003cli\u003e4Ω + 4Ω impedance for maximum versatility with all amplifiers\u003c\/li\u003e\n\n\u003cli\u003eExceptional force factor (BL) of 12 T•m for optimal control\u003c\/li\u003e\n\n\u003cli\u003eVentilation system without bottom plate drilling for multiple advantages\u003c\/li\u003e\n\n\u003cli\u003eBetter thermal inertia for lower temperatures during musical transients\u003c\/li\u003e\n\n\u003cli\u003eBetter magnetic field induction in the coil\u003c\/li\u003e\n\n\u003cli\u003eHigh iron content in pole pieces to prevent magnetic saturation\u003c\/li\u003e\n\n\u003cli\u003ePossibility of installation on the rear wall thanks to compact dimensions\u003c\/li\u003e\n\n\u003cli\u003eDamping disc supplied with 10 threaded holes for fixing to the enclosure\u003c\/li\u003e\n\n\u003cli\u003eOrifices around the voice coil for better air exchange\u003c\/li\u003e\n\n\u003cli\u003e10 holes in the back plate for optimal cooling\u003c\/li\u003e\n\n\u003cli\u003eLow operating temperature even during extreme musical passages\u003c\/li\u003e\n\n\u003cli\u003eSolid push-in connectors with short-circuit protection\u003c\/li\u003e\n\n\u003cli\u003eAccepts 8 AWG cables for minimum resistance in 1Ω configuration\u003c\/li\u003e\n\n\u003cli\u003eResonant frequency (Fs) of 24 Hz for ultra-deep bass\u003c\/li\u003e\n\n\u003cli\u003eQts of 0.42 ideal for sealed enclosures\u003c\/li\u003e\n\n\u003cli\u003eExceptional sensitivity of 86 dB for maximum efficiency\u003c\/li\u003e\n\n\u003cli\u003eRobust 8.63 kg construction guaranteeing maximum durability\u003c\/li\u003e\n\n\u003cli\u003eUltimate solution for extraordinary performance in a compact volume\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003ch3\u003eDocumentation\u003c\/h3\u003e\u003cp\u003eFor more technical information and the complete installation manual, please consult the \u003ca href=\"https:\/\/www.hertzaudiovideo.com\" target=\"_blank\"\u003eofficial Hertz documentation\u003c\/a\u003e.\u003c\/p\u003e","brand":"Hertz","offers":[{"title":"Default Title","offer_id":54168220139843,"sku":"MP 300 D4.3 PRO","price":329.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/6247\/4051\/files\/Hertz_Mille_PRO_MP300_3_emo_db8246a2-95cf-4a18-bc66-6d60a0450503.png?v=1770304143","url":"https:\/\/soundautoconcept.com\/en-eu\/products\/subwoofer-hertz-mp-300-d4-3-pro-12-600w-rms-4-4%cf%89-mille-pro-v-cone","provider":"Sound Auto Concept","version":"1.0","type":"link"}