{"product_id":"lowersubstitute-e6221","title":"Rockville W10T4-S4 10\" Shallow Mount 1200w Peak Car Subwoofer 4-Ohm Sub 300w RMS CEA Rated","description":"\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 24px;\"\u003e\u003cimg src=\"https:\/\/smhttp-ssl-33159.nexcesscdn.net\/uploads\/Miscellanious\/rockville%20logo%20small.jpg\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cfont size=\"5\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 24px;\"\u003eVideo of T4 Series Shallow Mount subs:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/p\u003e\n\u003ccenter\u003e\n\u003cdiv class=\"videoframe\"\u003e\n\u003cvideo controls=\"controls\" preload=\"none\" src=\"https:\/\/player.vimeo.com\/external\/368626930.hd.mp4?s=0dad294ce94bc73cb88db6a0b36c443c233f4024\u0026amp;profile_id=175\" poster=\"https:\/\/smhttp-ssl-33159.nexcesscdn.net\/Assets\/thumbnails\/T4.jpg\" width=\"640\" height=\"360\"\u003e\u003c\/video\u003e\n\u003c\/div\u003e\n\u003c\/center\u003e\n\u003cbr\u003e\n\u003cstrong\u003e\u003cp\u003e\u003cspan style=\"font-size: 24px; font-family: Arial;\"\u003eWiring for 1 SVC 4 Ohm SUBS:\u003c\/span\u003e\u003c\/p\u003e\u003c\/strong\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003ccenter\u003e\u003cdiv class=\"videoframe\"\u003e\u003cvideo controls=\"controls\" preload=\"none\" src=\"https:\/\/player.vimeo.com\/progressive_redirect\/playback\/465547813\/rendition\/720p\/file.mp4?loc=external\u0026amp;signature=45b44a0bb08aab63112fda170a60440a23e0bf7c2e7ca6c7f77d584af6432c83\" poster=\"https:\/\/smhttp-ssl-33159.nexcesscdn.net\/Assets\/thumbnails\/WIRING_for_1_SVC_4_OHM_SUBS.jpg\" width=\"640\" height=\"360\"\u003e\u003c\/video\u003e\u003c\/div\u003e\u003c\/center\u003e\n\n\u003cstrong\u003e\u003cp\u003e\u003cspan style=\"font-size: 24px; font-family: Arial;\"\u003eWiring for 2 SVC 4 Ohm SUBS:\u003c\/span\u003e\u003c\/p\u003e\u003c\/strong\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003ccenter\u003e\u003cdiv class=\"videoframe\"\u003e\u003cvideo controls=\"controls\" preload=\"none\" src=\"https:\/\/player.vimeo.com\/progressive_redirect\/playback\/466703570\/rendition\/720p\/file.mp4?loc=external\u0026amp;signature=09a7ba03311158d48233d5c115ce6e049e64bc353153a19f91e3ee45f818e6bd\" poster=\"https:\/\/smhttp-ssl-33159.nexcesscdn.net\/Assets\/thumbnails\/WIRING_for_2_SVC_4_OHM_SUBS.jpg\" width=\"640\" height=\"360\"\u003e\u003c\/video\u003e\u003c\/div\u003e\u003c\/center\u003e\n\n\n\u003cp style=\"text-align: center;\"\u003e\u003cfont size=\"5\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 24px;\"\u003eCEA Compliant Legitimate Power Ratings\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; color: #000080;\"\u003ePeak Power = Amount of power the sub can handle for a burst during the loudest point during a song. This number is not as important as the RMS power. This subwoofer has 1,200 watts peak which is a lot of power for a 10\" subwoofer.\n\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; color: #000080;\"\u003eProgram Power = The RMS power the way most middle of the road brands on the market rate their products. This sub can handle 600 watts program power. So for example a 600 watt RMS Hifonics amplifier will work perfectly with one of these.\n\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; color: #000080;\"\u003eCEA Rated RMS Power = This is an official tested rating by a specific industry standard. This is the way the top brands in the industry such as Kicker, Rockford, etc rate their items. This subwoofer is 300 watts RMS CEA rated. This rating is measured at a very specific distortion level. You can feel confident matching this with a high end amplifier from Kicker, or Rockford, or any other high end brand that uses CEA compliant ratings.\n\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; color: #000080;\"\u003eWe supply all 3 ratings so that you can compare prices of our product to any brand on the market and also so you can confidently match this subwoofer to amplifiers from many other brands.\n\u003c\/span\u003e\u003c\/p\u003e\n\u003chr width=\"100%\" size=\"2\"\u003e\n\u003cp\u003e\u003cfont size=\"5\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 24px;\"\u003eDescription:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; color: #000080;\"\u003eRockville W10T4-S4 10\" Subwoofers feature the thinnest mounting depths available making them the best shallow-mount driver's suitable for the most intricate bass installations. Deep bass that's made to fit where standard-sized subwoofers can’t. What else can you ask for?\n\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; color: #000080;\"\u003eThe Rockville W10T4-S4 subwoofers feature a 4-Ohm single voice coil. These subwoofers are engineered to deliver serious low frequency response where space is limited. Whether installed behind the seat in a compact car, pick-up truck or in a motorcycle's saddlebags, make no mistake Rockville T4™ subs will rock you!\n\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; color: #000080;\"\u003eUtilizing a sophisticated “High-BL” motor structure together with a large-diameter, progressive-roll spider provides increased linearity and superior overall sound quality. A vented core magnet motor structure with extra thick back \u0026amp; top plates allows for full voice-coil extended peak-to-peak excursion, creating ultra deep bass response. Engineered with a special aluminum alloy high-temperature voice coil winding around the high-mass vented pole piece, helps to keep the woofers cool even when your music gets “hot”!\n\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; color: #000080;\"\u003eThe Rockville W10T4-S4 is CEA-2031 compliant and rated with an amazing 1200 watts peak and 300 watts RMS. That means you are getting 100% accurate RMS power ratings. These days lots of brands have competitions over how many thousands of watts they can write on the box of their items. The problem is you do not know what you are getting from them. It is easy to print a box that says 2,000 watts Max. Our subwoofers are rated in the same way that other famous brands rate their products. We also feel our manufacturing engineers are the best. The sound quality on our Rockville subs are just amazing. Our engineers who design the subwoofers are all in in the USA and have over 30 years experience manufacturing car audio.\n\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; color: #000080;\"\u003eIf you are not happy with these, we will call tag them and take them back within 30 days of when you receive them for a full refund. On top of that you get a 1 year exchange warranty for any defects.\n\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; color: #000080;\"\u003eIf you want the best value for a shallow mount car subwoofer, and you want a great quality product that sounds great, and you also want hassle free return policies, then we highly recommend these Rockville T4 subs.\n\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cfont size=\"5\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 24px;\"\u003eFeatures:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eRockville W10T4-S4 10\" Shallow Mount 1200 Watt Car Subwoofer, CEA Compliant, 4-Ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003ePower Handling: 1200 Watts Peak Power \/ 600 Watts Program \/ 300 Watts RMS (CEA Rating)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003e2\" voice coil\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eUltra Stiff Paper Composite Cone\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003e3D Molded High Gloss Acrylic Dust Cap\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eUltra Slim, Expanded and Rolled Steel Basket\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eHigh Density Laminated Butyl Rubber Surround\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eHigh Power Strontium Magnet with Ultra Saturated, High BL Motor Gap\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eVented Core Magnet Motor Structure\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eHigh Temperature Aluminum Voice Coil Former\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eLightweight Compact Design Ideal for Any Installation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eRubber Magnet Boot\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"Arial\"\u003eMagnet Weight: 45 Oz\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eDual Nickel Plated Spring Loaded Push Terminals\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eShallow Mount Subwoofer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eImpedance: SVC 4 Ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eCutout Diameter: 9.1 Inches\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eMounting Depth: 3.39 Inches\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eFrequency Response: 36 Hz to 500 Hz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eSensitivity: 90dB @ 1w\/1m\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cfont size=\"5\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 24px;\"\u003eEnclosure Recommendations:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eSealed: 0.50 cu. Ft - 1.0 Cu. Ft.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eVented: 1.00 cu. Ft - 2.50 Cu. Ft.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eVented Tuned at 45Hz: 1.00 cu. Ft. - 3.00 Cu. Ft.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: 18px;\"\u003e\u003cstrong\u003eElectrical Parameters:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eRe              3.33      Ohm       electrical voice coil resistance at DC\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eLe              1.394     mH         frequency independent part of voice coil inductance\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eL2              2.231     mH         para-inductance of voice coil\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eR2             8.99       Ohm       electrical resistance due to eddy current losses\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eCmes        784.16   µF           electrical capacitance representing moving mass\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eLces          19.06     mH         electrical inductance representing driver compliance\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eRes           42.01     Ohm       resistance due to mechanical losses\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003efs               41.2       Hz          driver resonance frequency\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 18px;\"\u003eMechanical Parameters \u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"font-size: 18px;\"\u003e(using laser)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eMms          119.448  g          mechanical mass of driver diaphragm assembly including air load and voice coil\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eMmd          111.826  g          mechanical mass of voice coil and diaphragm without air load\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eRms           3.626     kg\/s      mechanical resistance of total-driver losses\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eCms           0.125     mm\/N   mechanical compliance of driver suspension\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eKms           7.99       N\/mm   mechanical stiffness of driver suspension\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eBl               12.342   N\/A       force factor (Bl product)\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eLambda s   0.029                 suspension creep factor\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: 18px;\"\u003e\u003cstrong\u003eLoss factors\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eQtp             0.633                 total Q-factor considering all losses\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eQms           8.522                 mechanical Q-factor of driver in free air considering Rms only\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eQes            0.676                 electrical Q-factor of driver in free air considering Re only\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eQts             0.626                 total Q-factor considering Re and Rms only\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: 18px;\"\u003e\u003cstrong\u003eOther Parameters\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eVas             22.5626  l         equivalent air volume of suspension\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003en0               0.224     %        reference efficiency (2 pi-radiation using Re)\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eLm              85.70     dB       characteristic sound pressure level (SPL at 1m for 1W @ Re)\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eLnom          86.49     dB       nominal sensitivity (SPL at 1m for 1W @ Zn)\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eSd               357.00   cm²     diaphragm area\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"font-family: Arial;\"\u003eEBP            60.94                efficiency bandwidth product\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial;\"\u003e\n\n\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cfont size=\"5\"\u003e\u003cspan style=\"font-family: Arial; color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 24px;\"\u003eAbout Rockville Quality Control Procedures:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/p\u003e\n\u003cspan style=\"font-family: Arial; font-size: 16px;\"\u003eThe Rockville brand stands for Quality, Innovation and Value. All Rockville products go through the most rigorous quality control standards in the industry. Products go through months of extensive testing before they reach your hands. All user functions are tested and all internal components are tested for quality. Rockville makes products that are virtually un-breakable! Rockville is one of the only brands in its class to test every concept model for weeks or months before starting production. Once production begins, Rockville sends product engineers to their factory to quality control every line of production. During production every product is tested and on top of that Rockville goes the extra mile and has their high level product engineers do an additional quality control. They test a certain percentage of all products from the production line a second time to ensure that the quality meets their vigorous standards, and to make sure that there is never a batch of products with even a slight problem. All Rockville products are backed with a hassle free warranty.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e","brand":"Rockville","offers":[{"title":"Default Title","offer_id":52223576899885,"sku":"W10T4S4","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/0805\/3037\/files\/1163079.jpg?v=1784086387","url":"https:\/\/audiosavings.com\/products\/lowersubstitute-e6221","provider":"Audio Savings","version":"1.0","type":"link"}