{"product_id":"sundown-horizon-compact-4-channel-400-watt-rms-4-ohm-car-audio-amplifier-hz100-4","title":"Sundown Audio Horizon HZ100.4 400W RMS 4-Ohm 4-Channel Amplifier","description":"\u003cul\u003e\n\u003cli\u003ePowerful 4-Channel Performance: Delivers 100W RMS x4 at 4 ohms and 170W RMS x4 at 2 ohms, providing strong, clean output for component speakers, coaxials, and pro audio style mids and highs.\u003c\/li\u003e\n\u003cli\u003eFully Adjustable Crossovers: Independent high-pass and low-pass filters on all channels (27Hz to 250Hz) allow precise system tuning for active front stages, rear fill, or custom mixed setups.\u003c\/li\u003e\n\u003cli\u003eFlexible System Configurations: Bridgeable channels provide additional output options for higher-power speaker applications while maintaining full-range capability.\u003c\/li\u003e\n\u003cli\u003eFactory Radio Integration Ready: Equipped with high-level inputs and DC Sense for seamless integration with OEM head units without requiring additional converters.\u003c\/li\u003e\n\u003cli\u003eCompact and Efficient Design: Small chassis fits easily in tight installation spaces while delivering reliable Horizon Series performance and stable power for daily or custom builds.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eSundown Audio Horizon HZ100.4 400W RMS 4-Ohm 4-Channel Amplifier\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eThis Listing Includes\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003e(1) Sundown Horizon 4-Channel Amplifier HZ100.4\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003eMore power. More control. Better sound.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eThe Horizon HZ-100.4 4-channel amplifier is built for systems that demand headroom and clarity. Producing 100 watts RMS per channel at 4 ohms and 170 watts RMS per channel at 2 ohms, this amplifier delivers strong, clean output for component speakers, pro audio drivers, and full-range coaxials.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eWith fully adjustable high-pass and low-pass crossovers on every channel, the HZ-100.4 gives you precise control over system tuning. Run passive speaker setups, build a fully active front stage, bridge channels for increased output, or mix configurations to suit your build. The flexibility makes it ideal for both factory integration upgrades and custom audio systems.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eHigh-level inputs and DC Sense capability simplify installation with OEM head units, while built-in 4-way protection ensures safe and reliable operation. Despite its compact footprint, the HZ-100.4 offers serious power in a clean, efficient design that runs cool and installs easily in tight spaces.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003eWhether you are upgrading your mids and highs or building a fresh system from scratch, the HZ-100.4 provides the output, control, and reliability expected from the Horizon Series.\u003c\/p\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003e4-channel full-range amplifier\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003e100W RMS x4 @ 4 ohms\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003e170W RMS x4 @ 2 ohms\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eBridgeable for higher-output applications\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eAdjustable high-pass and low-pass filters on all channels\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eHigh-level input capability for factory radio integration\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eDC Sense automatic turn-on\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eCompact design for easy installation\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003e4-way protection circuitry\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eEfficient, cool-running operation\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003eRMS Power (@ 14.4V): 100W x4 @4-Ohms\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eRMS Power (@ 14.4V): 170W x4 @2-Ohms\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eHigh Pass Filter (CH 1–4): 27Hz – 250Hz\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eLow Pass Filter (CH 1–4): 27Hz – 250Hz\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eInput Sensitivity: Up to 6V\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eSignal-to-Noise Ratio: 95dB\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eFuse Rating: 60A\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eWeight: 2.93 lbs (1.33 kg)\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cbr\u003e\n  \u003cli\u003eLength: 8.63\"\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eWidth: 4.63\"\u003c\/li\u003e\n\u003cbr\u003e\n  \u003cli\u003eDepth: 2.2\"\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e","brand":"Sundown Horizon","offers":[{"title":"Default Title","offer_id":47979777982712,"sku":"SD-HZ100.4","price":289.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0029\/9384\/8365\/files\/Sundown_Audio_HZ-100.4_4-Channel_Amplifier_400W_4Ohm_Horizon_Series_main_image.jpg?v=1770919344","url":"https:\/\/bigjeffaudio.com\/products\/sundown-horizon-compact-4-channel-400-watt-rms-4-ohm-car-audio-amplifier-hz100-4","provider":"Big Jeff Online Inc","version":"1.0","type":"link"}