{"product_id":"vfl-audio-vfl-stealth-500-4-4-channel-amplifier","title":"VFL Audio VFL Stealth 500.4 4-Channel Amplifier","description":"\u003cdiv\u003e\n\u003cp\u003eThe VFL Audio VFL Stealth 500.4 is a 4-channel Class AB amplifier designed for multi-speaker car audio systems, delivering clean, controlled power with flexible tone shaping for precise on-vehicle tuning.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e4 CH\u003c\/b\u003e: 4-channel operation lets you power four individual speakers or create a cohesive front\/rear setup for consistent imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCONFIGURATION\u003c\/b\u003e: Class AB topology balances fidelity with practical heat management in typical installation scenarios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFREQUENCY RESPONSE\u003c\/b\u003e: 10-50 kHz range ensures extended high-frequency detail for smoother, more articulate highs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSIGNAL TO NOISE RATIO\u003c\/b\u003e: 105 dB provides a low noise floor, helping quiet passages stay clean when the music isn’t loud.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEFFICIENCY @ 4 OHM\u003c\/b\u003e: Over 70% efficiency reduces heat and electrical demand under common car audio loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDAMPING FACTOR\u003c\/b\u003e: 150 delivers strong control of speaker cone movement, aiding tighter bass and cleaner transients.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eINPUT SENSITIVITY\u003c\/b\u003e: 6V-0.2V accommodates a wide range of source levels, from common head units to higher-output sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLOW PASS FILTER\u003c\/b\u003e: 50 Hz–5 kHz tailors low-end output to the subwoofer and mains without bleed into higher frequencies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHIGH PASS FILTER\u003c\/b\u003e: 20 Hz–5 kHz helps block subsonic content and protect woofers while shaping mid\/highs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBASS BOOST @45HZ\u003c\/b\u003e: 0–12 dB at 45 Hz adds precise low-end emphasis when your system needs extra punch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTHD @ 4 OHM\u003c\/b\u003e: \u0026lt;0.1% total harmonic distortion at a 4-ohm load for clean, accurate music reproduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFUSE RATING\u003c\/b\u003e: 120A fuse protection tailored to the amplifier’s power needs and vehicle wiring requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDIMENSIONS (L)\u003c\/b\u003e: 19.69 in length to plan mounting space in dash or trunk installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Stealth 500.4 is ideal for four-channel setups in a wide range of vehicles, offering high SNR and low distortion while giving you flexible filtering and bass shaping to integrate subs, midranges, and tweeters without compromising clarity or control. Its substantial length requires a suitable mounting location, and the 120A fuse protection helps safeguard the installation and wiring from common power surges.\u003c\/p\u003e \u003cbr\u003e \u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eNUMBER OF CHANNELS\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-sheets-userformat='{\"2\":12288,\"15\":\"Arial\",\"16\":12}' data-sheets-value='{\"1\":2,\"2\":\"4 CH\"}'\u003e4 CH\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eCONFIGURATION\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-sheets-userformat='{\"2\":14977,\"3\":{\"1\":0},\"10\":1,\"12\":0,\"14\":{\"1\":2,\"2\":0},\"15\":\"Arial\",\"16\":12}' data-sheets-value='{\"1\":2,\"2\":\"Class AB\"}'\u003eClass AB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFREQUENCY RESPONSE\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-sheets-userformat='{\"2\":14465,\"3\":{\"1\":0,\"3\":1},\"10\":1,\"14\":{\"1\":2,\"2\":0},\"15\":\"Arial\",\"16\":12}' data-sheets-value='{\"1\":2,\"2\":\"10-50KHZ\"}'\u003e10-50KHZ\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eSIGNAL TO NOISE RATIO\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-sheets-userformat='{\"2\":14529,\"3\":{\"1\":0,\"3\":1},\"9\":0,\"10\":1,\"14\":{\"1\":2,\"2\":0},\"15\":\"Arial\",\"16\":12}' data-sheets-value='{\"1\":2,\"2\":\"105DB\"}'\u003e105DB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eEFFICIENCY @ 4 OHM\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-sheets-userformat='{\"2\":12288,\"15\":\"Arial\",\"16\":12}' data-sheets-value='{\"1\":2,\"2\":\"OVER 70%\"}'\u003eOVER 70%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eDAMPING FACTOR\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-sheets-userformat='{\"2\":12288,\"15\":\"Arial\",\"16\":12}' data-sheets-value='{\"1\":2,\"2\":\"150\u0026lt;\"}'\u003e150\u0026lt;\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eINPUT SENSITIVITY\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-sheets-userformat='{\"2\":12288,\"15\":\"Arial\",\"16\":12}' data-sheets-value='{\"1\":2,\"2\":\"6V-0.2\"}'\u003e6V-0.2\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eSUBSONIC FILTER\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-sheets-userformat='{\"2\":12801,\"3\":{\"1\":0},\"12\":0,\"15\":\"Arial\",\"16\":12}' data-sheets-value='{\"1\":2,\"2\":\"na\"}'\u003ena\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eLOW PASS FILTER\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-sheets-userformat='{\"2\":12801,\"3\":{\"1\":0},\"12\":0,\"15\":\"Arial\",\"16\":12}' data-sheets-value='{\"1\":2,\"2\":\"50Hz-5KHz\"}'\u003e50Hz-5KHz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eHIGH PASS FILTER\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-sheets-userformat='{\"2\":12801,\"3\":{\"1\":0},\"12\":0,\"15\":\"Arial\",\"16\":12}' data-sheets-value='{\"1\":2,\"2\":\"20Hz-5KHz\"}'\u003e20Hz-5KHz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eBASS BOOST @45HZ\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-sheets-userformat='{\"2\":12801,\"3\":{\"1\":0},\"12\":0,\"15\":\"Arial\",\"16\":12}' data-sheets-value='{\"1\":2,\"2\":\"0dB-12dB\"}'\u003e0dB-12dB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eTHD @ 4 OHM\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-sheets-userformat='{\"2\":12288,\"15\":\"Arial\",\"16\":12}' data-sheets-value='{\"1\":2,\"2\":\"\u0026lt;0.1%\"}'\u003e\u0026lt;0.1%\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eFUSE RATING\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-sheets-userformat='{\"2\":12288,\"15\":\"Arial\",\"16\":12}' data-sheets-value='{\"1\":2,\"2\":\"120A\"}'\u003e120A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eLINKED FUSE RATING\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-sheets-userformat='{\"2\":12801,\"3\":{\"1\":0},\"12\":0,\"15\":\"Arial\",\"16\":12}' data-sheets-value='{\"1\":2,\"2\":\"na\"}'\u003ena\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eDIMENSIONS ( L INCHES)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-sheets-userformat='{\"2\":12801,\"3\":{\"1\":0},\"12\":0,\"15\":\"Arial\",\"16\":12}' data-sheets-value='{\"1\":2,\"2\":\"19.69\\\"\"}'\u003e19.69\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"VFL Audio","offers":[{"title":"Default Title","offer_id":49850168869092,"sku":null,"price":264.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/2522\/9028\/files\/vfl-stealth-5004-amplifier-990652_600x_1dd1873f-5826-4d9b-be18-ecb59ecb0ddc.webp?v=1789259709","url":"https:\/\/www.12voltoutlet.com\/products\/vfl-audio-vfl-stealth-500-4-4-channel-amplifier","provider":"12 Volt Outlet","version":"1.0","type":"link"}