{"product_id":"hertz-mille-pro-mps-250-s4-shallow-mount-4-ohm-500w-10-subwoofer","title":"Hertz Mille PRO MPS 250 S4 Shallow Mount 4-Ohm 500W 10\" Subwoofer","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 12pt;\"\u003eMILLE PRO SHALLOW SUBWOOFER\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e \u003cp id=\"isPasted\"\u003eMPS 250 S4 is optimized to work in ultra-compact sealed boxes starting from only 14 Lt (0.49 Cf). A typical example is a subwoofer enclosure under the rear bench of pickup trucks, where the space - and the height - are limited.\u003c\/p\u003e \u003cp\u003eMille PRO subwoofer has a depth\/performance ratio never achieved before thanks to the impressive cone excursion capacity which is 20% higher than a traditional design.\u003c\/p\u003e \u003cp\u003eThis exceptional target has been achieved thanks to the ingenious suspension group design featuring a dedicated support structure for the spider and coil. This solution has allowed moving the magnetic group inwards, reducing the depth and at the same time maximizing cone linear excursion.\u003c\/p\u003e \u003cp\u003e500 W continuous power handling is an incredible result for such a compact subwoofer. To accomplish this ambitious goal, the Hertz R\u0026amp;D has developed the proprietary AIR (Air Intercooling Revolution) technology, optimizing the fluid dynamics of the inner acoustic structure and the magnetic group to minimize the internal compression of air and maximize cooling capacity. The 6 layers, 1.5 in. (38 mm) voice-coil with cooling openings on the former contributes to the thermal stability of the subwoofer, making MPS subs ready to face to the most demanding high-SPL listening session.\u003c\/p\u003e \u003cp\u003eThe design of the magnetic unit has been FEM simulated to maximize force factor (BxL) symmetry and thus obtain optimal linearity even at high excursions, perfectly controlling the inductance modulation.\u003c\/p\u003e \u003cp\u003ePole piece geometry has been optimized using a breakthrough simulation model that allowed improving unit force factor.\u003c\/p\u003e \u003cp\u003eHertz R\u0026amp;D also focused on modeling the cone\/enclosure behavior: inside a sealed box, air behaves like a spring – a non-linear suspension – whose effect must be compensated to obtain a system as linear as possible at high excursions.\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cstrong\u003eProduct Features:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eSize mm (in.) 250mm (10”)\u003c\/li\u003e \u003cli\u003ePower Handling Continuous 500W\u003c\/li\u003e \u003cli\u003ePower Handling Peak 1000W\u003c\/li\u003e \u003cli\u003eImpedance Ohm 4\u003c\/li\u003e \u003cli\u003eDepth mm (in.) 82,6 (3.25)\u003c\/li\u003e \u003cli\u003eVoice Coil Type Single\u003c\/li\u003e \u003cli\u003eNo Filter Component Subwoofers\u003c\/li\u003e \u003cli\u003eVoice Coil Ø  38 (1.5)\u003c\/li\u003e \u003cli\u003eFrequency Response 25 – 400Hz\u003c\/li\u003e \u003cli\u003eMagnet size D x d x h mm (in.) 134 x 55 x 36 (6.28 x 2.17 x 1.42)\u003c\/li\u003e \u003cli\u003eWeight of one component kg (lb.) 5,11 (11.27)\u003c\/li\u003e \u003cli\u003eMagnet High-density flux ferrite\u003c\/li\u003e \u003cli\u003eCone Polypropylene\u003c\/li\u003e \u003cli\u003eXmech mm (in.) 20 (0.79)\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSpecification:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eD 216,6mm\u003c\/li\u003e \u003cli\u003eXmax 16,8mm\u003c\/li\u003e \u003cli\u003eRe Ohm 2,2\u003c\/li\u003e \u003cli\u003eFs Hz  28\u003c\/li\u003e \u003cli\u003eLe mH 2,67\u003c\/li\u003e \u003cli\u003eVas I 24,5\u003c\/li\u003e \u003cli\u003eMms 250g\u003c\/li\u003e \u003cli\u003eCms 0,13mm\/N\u003c\/li\u003e \u003cli\u003eBL 14,7*m\u003c\/li\u003e \u003cli\u003eQts 0,41\u003c\/li\u003e \u003cli\u003eQes 0,45\u003c\/li\u003e \u003cli\u003eQms 5,3\u003c\/li\u003e \u003cli\u003eSpl 82,5dB\u003c\/li\u003e \u003c\/ul\u003e","brand":"Hertz","offers":[{"title":"Default Title","offer_id":52761091670282,"sku":"PRO MPS250-S4","price":379.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0930\/4578\/4842\/files\/mps-345577644_1.jpg?v=1774291352","url":"https:\/\/audiovisualworld.co.uk\/products\/hertz-mille-pro-mps-250-s4-shallow-mount-4-ohm-500w-10-subwoofer","provider":"Audio Visual World","version":"1.0","type":"link"}