{"product_id":"ds18-exl-p4000x1d-exl-power-1-channel-class-d-amplifier-4000-x-1-1-ohm-watts-rms-made-in-korea","title":"DS18 EXL-P4000X1D EXL Power 1-Channel Class D Amplifier 4000 x 1 @ 1-Ohm Watts Rms  Made In Korea","description":"\u003cdiv\u003e\n\u003cp\u003eDS18 EXL-P4000X1D is a 1-channel Class D car amplifier delivering 4000W RMS at 1Ω, built in Korea for demanding subwoofer systems. Its optimized Korean circuitry, robust heatsink, and thermal protection maintain consistent performance under demanding bass passages.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eRMS Power @ 1 Ohm\u003c\/b\u003e: 4000W x 1 CH — continuous, high-current power ideal for deep, authoritative bass in a dedicated subwoofer setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eChannel \/ Class\u003c\/b\u003e: 1-Channel Monoblock Class D — single-channel design optimized for subwoofers with high efficiency and heat management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMinimum Impedance\u003c\/b\u003e: 1 Ohm — supports very low-impedance subs for maximum output while maintaining stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFrequency Response\u003c\/b\u003e: 15Hz–250Hz — extends into ultrabass ranges, giving you flexibility to tailor the low end.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSignal-to-Noise Ratio\u003c\/b\u003e: \u0026gt;98dB — ensures a very low noise floor so bass remains clean even at high output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEfficiency @ 4 Ohm\u003c\/b\u003e: \u0026gt;87% — high efficiency reduces heat buildup during sustained bass playback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTHD\u003c\/b\u003e: \u0026lt;0.02% — extremely low total harmonic distortion for tight, accurate bass reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInputs \/ Wiring\u003c\/b\u003e: 1\/0 AWG power\/ground inputs and 8 AWG speaker terminals — designed for minimal voltage drop and solid high-current connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e bass boost \/ filters\u003c\/b\u003e: Bass Boost 0–+9dB (30–60 Hz); Infrasonic Filter 10–30 Hz; LPF is fixed with a selectable range (35–250 Hz) — gives you precise control over the bass spectrum and protection against subsonic signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRemote Level Control\u003c\/b\u003e: Dash-mount remote level control — adjust bass level from the cockpit to match your listening position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProtection \u0026amp; Safety\u003c\/b\u003e: Thermal Protection (\u0026gt;75°C \/ 167°F); Over-Load, DC Output, Short Circuit Output, Voltage Input (\u0026gt;15.5V); Clipping Protection — guards against common fault conditions during hard play.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFuse \/ Power Input\u003c\/b\u003e: 450 A inline fuse recommended; Power Input Size 0 AWG — aligns with high-current installation practices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePhysical\u003c\/b\u003e: Black Aluminum enclosure; Dimensions 17.4 x 8.77 x 2.67 inches — a compact, rugged chassis designed for performance-focused builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade In\u003c\/b\u003e: Korea — engineered and manufactured in Korea with premium components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBenefits: The EXL-P4000X1D is built for high-demand monoblock subs, delivering serious 1Ω power while maintaining efficiency and thermal stability. Its robust wiring, 450 A fuse recommendation, and protective features help sustain loud, low-distortion bass in premium installations. Fixed LPF with adjustable sub-bass tuning, bass boost, and infrasonic filtering allow precise shaping of the low end, while dash-mount remote control enables on-the-fly level matching to the rest of your system.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"DS18","offers":[{"title":"Default Title","offer_id":49850245513444,"sku":null,"price":699.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/2522\/9028\/files\/EXL-P4000X1D-2000X2000_700x_e7220238-9a13-446c-ace3-2e02ed6604fd.webp?v=1789261784","url":"https:\/\/www.12voltoutlet.com\/products\/ds18-exl-p4000x1d-exl-power-1-channel-class-d-amplifier-4000-x-1-1-ohm-watts-rms-made-in-korea","provider":"12 Volt Outlet","version":"1.0","type":"link"}