{"product_id":"subwoofer-hertz-mps-300-s4-12-500w-rms-4ω-shallow-profondeur-88mm","title":"Hertz MPS 300 S4 Subwoofer - 12\" - 500W RMS - 4Ω - Shallow - 88mm Depth","description":"\u003ch3\u003eHighlights\u003c\/h3\u003e\u003cul\u003e\n\n\u003cli\u003eMille PRO 12-inch shallow subwoofer for ultra-tight spaces\u003c\/li\u003e\n\n\u003cli\u003eExceptionally shallow depth: only 88 mm (3.46\")\u003c\/li\u003e\n\n\u003cli\u003e500W RMS power and 1000W peak power\u003c\/li\u003e\n\n\u003cli\u003eOptimized for ultra-compact sealed enclosures starting from 22.7 liters\u003c\/li\u003e\n\n\u003cli\u003eCone excursion 20% greater than traditional designs\u003c\/li\u003e\n\n\u003cli\u003eIngenious suspension system with dedicated support structure\u003c\/li\u003e\n\n\u003cli\u003eMagnet assembly moved inward to reduce depth\u003c\/li\u003e\n\n\u003cli\u003eIdeal for installation under the rear seats of pickup trucks\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eMille PRO shallow subwoofers were designed to achieve exceptional performance even when there is very little space available to install the subwoofer enclosure.\u003c\/p\u003e\u003cp\u003eThe MPS 300 S4 (12-inch) is optimized to work in ultra-compact sealed enclosures starting from just 22.7 liters (0.8 Cf). A typical example is a subwoofer enclosure under the rear seats of pickup trucks, where space – and height – are limited.\u003c\/p\u003e\u003cp\u003eThe Mille PRO subwoofer boasts an unprecedented depth-to-performance ratio thanks to the impressive cone excursion capability, which is 20% greater than traditional designs.\u003c\/p\u003e\u003cp\u003eThis exceptional objective was achieved through the ingenious design of the suspension system, featuring a dedicated support structure for the spider and voice coil. This solution allowed the magnet assembly to be moved inward, reducing depth while maximizing linear cone excursion.\u003c\/p\u003e\u003cul\u003e\n\n\u003cli\u003eMille PRO 12-inch shallow subwoofer for exceptional performance in tight spaces\u003c\/li\u003e\n\n\u003cli\u003eExceptionally shallow depth: only 88 mm (3.46\") for easy installation\u003c\/li\u003e\n\n\u003cli\u003e500W RMS power and 1000W peak power for deep bass\u003c\/li\u003e\n\n\u003cli\u003eOptimized for ultra-compact sealed enclosures starting from 22.7 liters (0.8 Cf)\u003c\/li\u003e\n\n\u003cli\u003eIdeal for installation under the rear seats of pickup trucks\u003c\/li\u003e\n\n\u003cli\u003ePerfect for spaces where height is limited\u003c\/li\u003e\n\n\u003cli\u003eUnprecedented depth-to-performance ratio\u003c\/li\u003e\n\n\u003cli\u003eCone excursion capability 20% greater than traditional designs\u003c\/li\u003e\n\n\u003cli\u003eIngenious suspension system with dedicated support structure for spider and voice coil\u003c\/li\u003e\n\n\u003cli\u003eMagnet assembly moved inward to reduce depth\u003c\/li\u003e\n\n\u003cli\u003eMaximization of linear cone excursion for optimal performance\u003c\/li\u003e\n\n\u003cli\u003e38 mm (1.5\") voice coil for power and control\u003c\/li\u003e\n\n\u003cli\u003eHigh flux density ferrite magnet for high motor force\u003c\/li\u003e\n\n\u003cli\u003eMagnet size: 156 x 60 x 36 mm for optimal performance\u003c\/li\u003e\n\n\u003cli\u003ePolypropylene cone for fast and controlled response\u003c\/li\u003e\n\n\u003cli\u003eLinear excursion (Xmax) of 16.8 mm for significant air displacement\u003c\/li\u003e\n\n\u003cli\u003eMechanical excursion (Xmech) of 20 mm (0.79\") for extreme performance\u003c\/li\u003e\n\n\u003cli\u003eFrequency response: 25-400 Hz for low-frequency reproduction\u003c\/li\u003e\n\n\u003cli\u003eResonance frequency (Fs) of 23 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 motor force (BL) of 18.7 T•m for optimal control\u003c\/li\u003e\n\n\u003cli\u003eSensitivity of 85 dB for optimal efficiency\u003c\/li\u003e\n\n\u003cli\u003e4-ohm impedance for compatibility with most amplifiers\u003c\/li\u003e\n\n\u003cli\u003eSingle Voice Coil for wiring simplicity\u003c\/li\u003e\n\n\u003cli\u003eRobust construction weighing 6.64 kg for maximum durability\u003c\/li\u003e\n\n\n\u003c\/ul\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\u003e500 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\u003e1000 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 Ω\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e88 mm (3.46\")\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eVoice Coil Type\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003eSingle Voice Coil\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\u003e38 mm (1.5\")\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eFrequency Response\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e25 - 400 Hz\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\u003e156 x 60 x 36 mm (6.14 x 2.36 x 1.42\")\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\u003e6.64 kg (14.64 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\u003ePolypropylene\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\u003e16.8 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\u003e20 mm (0.79\")\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\u003e262.59 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\u003e16.8 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\u003e3.4 Ω\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eFs (Resonance Frequency)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e23 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\u003e3.75 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\u003e62.13 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\u003e320 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\u003e0.15 mm\/N\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eBL (Motor Force)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e18.7 T•m\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eQts (Total Quality 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 Quality 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 Quality Factor)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e6.3\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\u003e85 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\u003eOuter Diameter (A)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e318.3 mm (12.53\")\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003e\u003cstrong\u003eCutout Diameter (B)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd\u003e282.5 mm (11.12\")\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\u003e108.88 mm (4.29\")\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\u003e88 mm (3.46\")\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\u003eMille PRO 12-inch shallow subwoofer for exceptional performance in ultra-tight spaces\u003c\/li\u003e\n\n\u003cli\u003eExceptionally shallow depth of only 88 mm (3.46\") for easy installation\u003c\/li\u003e\n\n\u003cli\u003e500W RMS power and 1000W peak power for deep and impactful bass\u003c\/li\u003e\n\n\u003cli\u003eOptimized for ultra-compact sealed enclosures from just 22.7 liters\u003c\/li\u003e\n\n\u003cli\u003eIdeal for installation under the rear seats of pickup trucks\u003c\/li\u003e\n\n\u003cli\u003ePerfect for spaces where height is limited\u003c\/li\u003e\n\n\u003cli\u003eUnprecedented depth-to-performance ratio\u003c\/li\u003e\n\n\u003cli\u003eCone excursion capability 20% greater than traditional designs\u003c\/li\u003e\n\n\u003cli\u003eIngenious suspension system with dedicated support structure for spider and voice coil\u003c\/li\u003e\n\n\u003cli\u003eMagnet assembly moved inward to reduce depth\u003c\/li\u003e\n\n\u003cli\u003eMaximization of linear cone excursion for optimal performance\u003c\/li\u003e\n\n\u003cli\u003e38 mm (1.5\") voice coil for power and control\u003c\/li\u003e\n\n\u003cli\u003eHigh flux density ferrite magnet for high motor force\u003c\/li\u003e\n\n\u003cli\u003eExceptional motor force (BL) of 18.7 T•m for optimal control\u003c\/li\u003e\n\n\u003cli\u003ePolypropylene cone for fast and controlled response\u003c\/li\u003e\n\n\u003cli\u003eLinear excursion (Xmax) of 16.8 mm for significant air displacement\u003c\/li\u003e\n\n\u003cli\u003eMechanical excursion (Xmech) of 20 mm (0.79\") for extreme performance\u003c\/li\u003e\n\n\u003cli\u003eFrequency response of 25-400 Hz for low-frequency reproduction\u003c\/li\u003e\n\n\u003cli\u003eResonance frequency (Fs) of 23 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\u003eSensitivity of 85 dB for optimal efficiency\u003c\/li\u003e\n\n\u003cli\u003e4-ohm impedance for compatibility with most amplifiers\u003c\/li\u003e\n\n\u003cli\u003eSingle voice coil for wiring simplicity\u003c\/li\u003e\n\n\u003cli\u003eRobust construction of 6.64 kg ensuring maximum durability\u003c\/li\u003e\n\n\u003cli\u003eUltimate solution for installations in ultra-tight spaces without compromising performance\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":54168108663107,"sku":"MPS 300 S4","price":399.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/6247\/4051\/files\/Hertz_Mille_MPS_300_EMO_2aedc757-860e-4aa9-a115-8da851a2d8ca.jpg?v=1770301133","url":"https:\/\/soundautoconcept.com\/en-eu\/products\/subwoofer-hertz-mps-300-s4-12-500w-rms-4%cf%89-shallow-profondeur-88mm","provider":"Sound Auto Concept","version":"1.0","type":"link"}