{"product_id":"sundown-audio-sw-hzs12d4-horizon-hzs-12-shallow-subwoofer-dual-4-ohm","title":"SW-HZS12D4 Sundown Audio Horizon HZS 12\" Shallow Mount Subwoofer 600W RMS 4 Ohm DVC","description":"\u003cdiv style=\"text-align: start;\"\u003e\n\u003ch1 class=\"title\"\u003e\u003cspan\u003eSundown Audio SW-HZS12D4 Horizon HZS 12\" Shallow Mount Subwoofer | 600W RMS Dual 4 Ohm | Cast Basket\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cimg style=\"float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0631\/9508\/7016\/files\/493e75a0-da7d-45d2-8e38-6f3d64ac24da.__CR0_0_600_180_PT0_SX600_V1_480x480.png?v=1707238923\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"uk-panel uk-margin\"\u003e\n\u003cb\u003e \u003cmeta charset=\"UTF-8\"\u003e\u003c\/b\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eGet the deep, powerful bass you want without giving up valuable installation space. The \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSundown Audio Horizon HZS 12\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e was engineered specifically for enthusiasts who need true low-frequency performance in shallow mounting applications. Whether you're building a truck enclosure, upgrading a Jeep, or designing a stealth audio system, the HZS 12 delivers authentic Sundown Audio performance while fitting where many traditional subwoofers simply can't.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRated at \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e600 Watts RMS\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the HZS 12 features the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003enew heavy-duty cast aluminum basket\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2.5-inch black aluminum voice coil\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ehigh-roll surround\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eprogressive spider suspension\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, and an advanced \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003evented motor design\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to provide excellent thermal management, reliability, and clean bass performance. The larger 12-inch cone area moves more air than the 10-inch model, making it an excellent choice for customers seeking deeper bass and increased low-frequency output while maintaining a shallow mounting profile.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eWhy You'll Love It\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✔ 600 Watts RMS Continuous Power Handling\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✔ New Heavy-Duty Cast Aluminum Basket Design\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✔ Dual 4 Ohm Voice Coils\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✔ Designed Specifically for Shallow Mount Installations\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✔ Larger 12-Inch Cone for Greater Low-Frequency Output\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✔ Excellent Performance in Compact Sealed or Ported Enclosures\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✔ High-Roll Surround for Increased Linear Excursion\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✔ Progressive Spider Suspension for Outstanding Control\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✔ Vented Motor Design for Improved Cooling \u0026amp; Reliability\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✔ Built for Years of Daily Performance\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003ePerfect For\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eBehind Truck Seat Enclosures\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUnder-Seat Truck Box Builds\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUVs \u0026amp; Crossovers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSpace-Limited Installations\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStealth Audio Systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDaily Driver Bass Upgrades\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-Performance SQL Builds\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCustomers Wanting More Output Than a Typical 10-Inch Shallow Subwoofer\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Overview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eHorizon HZS Series\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e was created to deliver serious bass performance where installation space is at a premium. Instead of compromising output to achieve a shallow mounting depth, Sundown Audio engineered the HZS platform from the ground up using proven design principles focused on strength, thermal performance, and clean excursion.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003enew cast basket version\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e improves structural rigidity and provides a stronger foundation for the moving assembly, helping reduce unwanted resonance while increasing long-term durability. Combined with a vented motor gap, solid pole piece cooling, stitched mini-XL tinsel leads, and a progressive spider suspension, the HZS 12 is built to perform consistently through years of demanding daily use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIts larger cone area allows it to produce deeper bass and move more air than smaller shallow-mount subwoofers, making it an excellent choice for truck owners, Jeep enthusiasts, SUV builds, and custom installations where preserving cargo space is just as important as achieving impressive low-frequency performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhether installed in a compact sealed enclosure or a properly designed ported enclosure, the HZS 12 provides the combination of output, reliability, and installation flexibility that has made Sundown Audio one of the most respected names in high-performance mobile audio.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eIdeal Applications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Horizon HZS 12 is ideal for customers who want stronger low-frequency performance while maintaining a compact installation footprint.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIt performs exceptionally well in:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eBehind-seat truck enclosures\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUnder-seat truck systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUV stealth installations\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDaily-driver SQL systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCustom fiberglass enclosures\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSpace-conscious high-performance audio systems\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIf you're looking for a shallow-mount subwoofer that delivers deeper extension and increased output without requiring excessive mounting depth, the HZS 12 is an outstanding solution.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003e12-Inch Shallow Mount Subwoofer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNew Cast Aluminum Basket Design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e600 Watts RMS Power Handling\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDual 4 Ohm Voice Coils\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e2.5-Inch Black Aluminum Voice Coil\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVented Motor Gap\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSolid Pole Piece Cooling\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-Roll Foam Surround\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProgressive Spider Suspension\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStitched Mini-XL Tinsel Leads\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBolt-Through Motor Assembly\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOptimized for Compact Enclosures\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDesigned for Daily High-Performance Use\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eBrand:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Sundown Audio\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSeries:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Horizon HZS\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eModel:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e HZS 12\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSKU:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e SW-HZS12D4\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSpeaker Size:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 12\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSubwoofer Type:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Shallow Mount\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003ePower Handling (RMS):\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 600 Watts\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eVoice Coil Configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Dual 4 Ohm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eVoice Coil Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 2.5\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eVoice Coil Former:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Black Aluminum\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eBasket:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Cast Aluminum (New Version)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eMotor Cooling:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Vented Motor Gap \u0026amp; Solid Pole Piece\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSuspension:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Progressive Spider\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSurround:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-Roll Foam\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eLead Wires:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Stitched Mini-XL Tinsel Leads\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eRecommended Sealed Enclosure:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1.0 ft³ Net\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDriver Displacement:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 0.05 ft³\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eMounting Depth:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 4.1\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eOverall Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 12.8\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eCutout Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 11.3\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eThiele \/ Small Parameters\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eRe:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 6.850 Ohms\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eFs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 32.802 Hz\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eVas:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 56.708 L\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQes:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 0.564\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQms:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3.240\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQts:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 0.480\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eBL:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 21.348 N\/A\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eMms:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 182.051 g\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eCms:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 129.313 µm\/N\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSensitivity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 87.4 dB (1W\/1M)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eXmax:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Not Published by Manufacturer\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cmeta charset=\"UTF-8\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eEnclosure Recommendations\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Horizon HZS 12 was engineered to deliver outstanding bass performance in compact enclosures while maintaining the reliability and output expected from Sundown Audio.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eRecommended Sealed Enclosure\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eNet Air Space:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1.0 ft³\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eDriver Displacement:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 0.05 ft³\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA properly built sealed enclosure delivers accurate, controlled bass with excellent musical detail while maximizing available cargo space.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePorted Enclosures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe HZS Series was designed to perform exceptionally well in properly engineered ported enclosures when higher output is desired. \u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eInstallation Notes\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWith a mounting depth of only \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.1 inches\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the HZS 12 is an excellent solution for installations where conventional 12-inch subwoofers simply won't fit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePopular applications include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\u003cspan\u003eBehind-seat truck enclosures\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUnder-seat truck systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSUVs and crossovers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCustom fiberglass installations\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor best performance, install the HZS 12 in a properly constructed enclosure and pair it with an amplifier capable of delivering approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e600 Watts RMS\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e at the final wired impedance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003ePro Audio Center Tip\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eShallow-mount subwoofers have come a long way, and the Horizon HZS Series is a great example of how thoughtful engineering can overcome limited installation space.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRather than simply reducing mounting depth, Sundown Audio designed the HZS platform with a purpose-built motor, progressive suspension, and efficient cooling system to deliver clean, reliable bass performance in applications where traditional subwoofers aren't practical.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIf space is limited but quality matters, the HZS 12 is an excellent option.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eBuild Your System\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eComplete your installation with:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cspan\u003eMonoblock amplifier rated around \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e600 Watts RMS\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOFC amplifier wiring kit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-quality RCA cables\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSound deadening material\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAGM battery upgrade (recommended for larger systems)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCustom sealed or ported enclosure\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBass remote level control (when supported by your amplifier)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eExpert Recommendation from Pro Audio Center\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Horizon HZS 12 is a great choice for customers who want to retain valuable interior space without giving up the performance expected from a premium subwoofer.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWe especially like this model for trucks, SUVs, and custom installations where mounting depth is limited but reliability and sound quality remain priorities. The updated cast aluminum basket adds strength and rigidity, while the 600 Watt RMS rating makes it easy to pair with a wide variety of quality monoblock amplifiers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eMatched with a properly designed enclosure and the right amplifier, the HZS 12 delivers the dependable performance that has made Sundown Audio one of the most respected names in mobile audio.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch3\u003e\u003cspan\u003eWhy Buy From Pro Audio Center?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAt Pro Audio Center, we know that choosing the right subwoofer involves more than comparing specifications. The enclosure, amplifier, and overall system design all play an important role in achieving the performance you're looking for.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eOur goal is to help you build a system that performs as well in the real world as it does on paper. Whether you're upgrading a daily driver, outfitting a truck, or designing a custom installation, we're here to help you select equipment that works together seamlessly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhen you purchase from Pro Audio Center, you're buying from enthusiasts who are passionate about mobile electronics and committed to helping you get the most from your investment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch1\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch4\u003e\u003cspan\u003eIs the HZS 12 a true shallow-mount subwoofer?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eYes. The Horizon HZS Series was engineered specifically for shallow mounting applications while maintaining the performance and durability expected from Sundown Audio.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch4\u003e\u003cspan\u003eHow much power does the HZS 12 handle?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe HZS 12 is rated to handle \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e600 Watts RMS\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e continuous power.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch4\u003e\u003cspan\u003eWhat amplifier should I use?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor the best results, we recommend a quality monoblock amplifier capable of producing approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e600 Watts RMS\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003eat the final impedance of your system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch4\u003e\u003cspan\u003eIs this subwoofer compatible with sealed and ported enclosures?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eYes. The HZS 12 performs well in both sealed and properly designed ported enclosures. Sundown Audio provides a recommended sealed enclosure specification, while custom ported enclosures can be designed for customers seeking higher output.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch4\u003e\u003cspan\u003eWill this fit under the seat of my truck?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIn many applications, yes. With a mounting depth of only \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4.1 inches\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the HZS 12 was developed specifically for installations where space is limited. We recommend measuring your available mounting depth before purchasing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch4\u003e\u003cspan\u003eWhat are the benefits of the new cast basket design?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe updated cast aluminum basket provides greater structural rigidity and durability than traditional stamped baskets, helping maintain consistent performance during demanding operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch4\u003e\u003cspan\u003eIs the HZS 12 a good daily driver subwoofer?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eAbsolutely. The Horizon HZS Series was designed for dependable everyday performance while delivering the clean, musical bass that Sundown Audio enthusiasts have come to expect.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Sundown","offers":[{"title":"Default Title","offer_id":53261248594088,"sku":"SW-HZS12D4","price":259.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0631\/9508\/7016\/files\/SW-HZS12NewFront.jpg?v=1783461053","url":"https:\/\/proaudiocenter.com\/products\/sundown-audio-sw-hzs12d4-horizon-hzs-12-shallow-subwoofer-dual-4-ohm","provider":"Pro Audio Center","version":"1.0","type":"link"}