{"product_id":"sundown-audio-sw-hzs10d4-horizon-hzs-10-shallow-subwoofer-dual-4-ohm","title":"SW-HZS10D4 Sundown Audio Horizon HZS 10\" Shallow Mount Subwoofer 600W RMS 4 Ohm DVC","description":"\u003cdiv style=\"text-align: start;\"\u003e\n\u003ch1\u003e\u003cspan\u003eSundown Audio SW-HZS10D4 Horizon HZS 10\" 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\u003cbr\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDon't let limited installation space limit your bass. The \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eSundown Audio Horizon HZS 10\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e was engineered specifically for enthusiasts who need serious low-frequency performance in shallow mounting locations without sacrificing the reliability and output that Sundown Audio is known for.\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 10 combines a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003enew cast aluminum basket\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \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, and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003evented motor design\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e into a compact package capable of producing clean, controlled bass in truck boxes, under-seat enclosures, stealth installations, and other space-restricted applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhether you're upgrading a daily driver or building a premium custom system, the HZS Series delivers authentic Sundown performance where traditional subwoofers simply won't fit.\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 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 Installations\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 Superior Control\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✔ Vented Motor Assembly for Improved Cooling \u0026amp; Reliability\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e✔ Built to Handle Real Daily Use\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\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Behind Truck Seat Enclosures\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Under Seat Truck Boxes\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Space-Limited Installations\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Stealth Audio Systems\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Daily Driver Bass Systems\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Compact SUVs\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• High-Performance Shallow Subwoofer Builds\u003c\/span\u003e\u003c\/p\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 designed from the ground up to solve one of the biggest challenges in mobile audio: delivering real bass performance where installation depth is limited.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRather than compromising performance for convenience, Sundown Audio engineered the HZS using many of the same design philosophies found in their larger subwoofers. The result is a shallow-mount subwoofer capable of producing impressive low-frequency output while maintaining the durability and thermal performance enthusiasts expect from the Sundown name.\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 further improves rigidity and structural strength, helping reduce unwanted resonance while providing a more stable platform for the moving assembly. Combined with a vented motor, progressive spider, stitched mini-XL tinsel leads, and a robust 2.5-inch aluminum voice coil, the HZS is built to deliver consistent performance through years of daily use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhile optimized for compact ported enclosures, the HZS also performs exceptionally well in properly designed sealed enclosures, making it an excellent solution for trucks, Jeeps, SUVs, and other vehicles where preserving cargo space is just as important as achieving impressive bass.\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 Sundown Audio HZS 10 is best suited for customers who want strong, musical bass without giving up valuable interior space.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIt pairs especially well with:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Single subwoofer truck builds\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Under-seat enclosure systems\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Behind-seat pickup truck installations\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Daily-driver SQL (Sound Quality + Loudness) systems\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Compact custom enclosures\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e• Factory cargo area upgrades\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIts efficient shallow-mount design allows installers to build systems that maintain usable storage space while still delivering the deep, controlled bass expected from a premium Sundown Audio subwoofer.\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\u003e10-Inch Shallow Mount Subwoofer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNew Cast 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 10\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSKU:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e SW-HZS10D4\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSpeaker Size:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10\"\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 0.50 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 0.04 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 3.8\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eOverall Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 10.8\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eCutout Diameter:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 9.4\"\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 44.557 Hz\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eVas:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 19.254 L\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQes:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 0.578\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQms:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3.320\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eQts:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 0.492\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eBL:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 20.281 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 124.028 g\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eCms:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 102.871 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 86.6 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 \u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eEnclosure Recommendations\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor the best overall performance, Sundown Audio designed the Horizon HZS Series to perform exceptionally well in compact enclosures while maintaining the output and reliability expected from the brand.\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 0.50 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 0.04 ft³\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eA sealed enclosure provides tight, accurate bass with excellent transient response, making it a great choice for daily drivers and sound quality-focused systems.\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 engineered to excel in ported enclosures when maximum output is the goal. While Sundown Audio has not published a recommended ported enclosure volume or tuning frequency for this model, a properly designed custom ported enclosure can significantly increase low-frequency output and efficiency.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIf you're planning a custom ported enclosure and would like assistance designing the ideal enclosure for your vehicle and application, our team is happy to help.\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\u003e3.8 inches\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the HZS 10 is an excellent solution for installations where traditional subwoofers 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 truck seats\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUnder-seat truck enclosures\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompact SUV installations\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStealth custom enclosures\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor best results, use a high-quality enclosure built to the recommended internal air volume and power the HZS with a quality 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\n\u003cspan\u003ePro Audio Center Tip\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIf you're limited on space but refuse to compromise on bass quality, this is exactly the type of subwoofer we recommend.\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 bass upgrade 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 10 is one of those products that fills a gap many manufacturers struggle to address. Instead of asking customers to sacrifice bass performance for a shallow mounting depth, Sundown Audio engineered a subwoofer that delivers both.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWe especially recommend the HZS 10 for pickup trucks and SUVs where preserving usable interior space is important. The new cast basket design adds rigidity and durability, while the 600 Watt RMS power handling provides plenty of output for an impressive daily driver system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePair it with a quality 600 Watt RMS monoblock amplifier and a properly built enclosure, and you'll have a system that performs far beyond what most people expect from a shallow mount subwoofer.\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 don't believe in simply selling equipment—we believe in helping customers build systems that perform exactly the way they expect.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eEvery product we offer is carefully selected based on real-world performance, reliability, and value. Whether you're building a compact truck system, upgrading your Jeep, or designing a custom audio installation, we're here to help you choose equipment that works together and delivers outstanding results.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhen you shop with Pro Audio Center, you're buying from enthusiasts and installers who understand what it takes to build a great sounding system.\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 10 a true shallow mount subwoofer?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eYes. The Horizon HZS Series was purpose-built for shallow mounting applications while maintaining the performance and durability Sundown Audio is known for.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch4\u003e\u003cspan\u003eHow much power does the HZS 10 handle?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe HZS 10 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 pairs well with this subwoofer?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor the best balance of performance and reliability, we recommend a quality monoblock 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 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 better in a sealed or ported enclosure?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe HZS performs well in both enclosure types. A sealed enclosure offers tight, accurate bass in a compact footprint, while a properly designed ported enclosure can provide increased low-frequency output and efficiency.\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\u003e3.8 inches\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, the HZS is specifically designed for installations where traditional subwoofers won't fit. We always recommend verifying available mounting depth before purchasing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch4\u003e\u003cspan\u003eWhat makes the new cast basket version better?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe updated cast aluminum basket provides increased structural rigidity compared to stamped designs, helping reduce unwanted flex and creating a stronger foundation for the moving assembly during high-output operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch4\u003e\u003cspan\u003eIs this a good subwoofer for daily listening?\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eAbsolutely. The HZS was engineered for reliable everyday performance while still delivering the powerful, musical bass that has made Sundown Audio one of the most respected names in car audio.\u003c\/span\u003e\u003c\/p\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e","brand":"Sundown","offers":[{"title":"Default Title","offer_id":53689389121704,"sku":"SW-HZS10D4","price":244.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0631\/9508\/7016\/files\/SW-HZS10_New_Front.jpg?v=1783461618","url":"https:\/\/proaudiocenter.com\/products\/sundown-audio-sw-hzs10d4-horizon-hzs-10-shallow-subwoofer-dual-4-ohm","provider":"Pro Audio Center","version":"1.0","type":"link"}