{"product_id":"aunex-ac1600k5-5-channel-car-amplifier-800w-sub-125w-x4","title":"AC1600K5","description":"\u003cstyle\u003e\n  :root {\n    --red:       #8b0000;\n    --red-dim:   #600000;\n    --page-bg:   #ffffff;\n    --surface-2: #f5f5f2;\n    --surface-3: #eeeeea;\n    --border:    #ddddd8;\n    --ink:       #111110;\n    --ink-soft:  #333330;\n    --mid-text:  #666660;\n    --mono:      'Share Tech Mono', monospace;\n    --red-light: #f0e4e4;\n    --red-mid:   #d4a0a0;\n  }\n\n  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }\n\n  .seo-card {\n    background: var(--page-bg);\n    border-top: 1px solid var(--border);\n    padding: 100px max(72px, calc((100% - 1440px) \/ 2 + 72px));\n    font-size: 16px;\n  }\n\n  .seo-card-inner {\n    display: grid;\n    grid-template-columns: 1fr;\n    gap: 60px;\n  }\n\n  \/* ─── LEAD ─── *\/\n  .seo-lead-tag {\n    font-family: var(--mono);\n    font-size: 12px;\n    color: var(--red);\n    letter-spacing: 0.22em;\n    text-transform: uppercase;\n    display: block;\n    margin-bottom: 16px;\n  }\n\n  .seo-lead-title {\n    font-family: 'Barlow Condensed', sans-serif;\n    font-weight: 800;\n    font-size: clamp(32px, 4vw, 52px);\n    line-height: 1;\n    text-transform: uppercase;\n    letter-spacing: 0.01em;\n    color: var(--ink);\n    margin-bottom: 24px;\n  }\n\n  .seo-lead-title .red { color: var(--red); }\n\n  .seo-lead-intro {\n    font-size: 15.5px;\n    line-height: 1.8;\n    color: var(--ink-soft);\n    max-width: 820px;\n  }\n\n  .seo-lead-intro strong { color: var(--ink); font-weight: 600; }\n\n  \/* ─── BODY GRID ─── *\/\n  .seo-body {\n    display: grid;\n    grid-template-columns: repeat(3, 1fr);\n    gap: 2px;\n    background: var(--border);\n  }\n\n  .seo-block {\n    background: var(--page-bg);\n    padding: 32px 28px;\n    transition: background 0.2s;\n    position: relative;\n    overflow: hidden;\n  }\n\n  .seo-block::after {\n    content: '';\n    position: absolute;\n    bottom: 0; left: 0; right: 0;\n    height: 2px;\n    background: var(--red);\n    transform: scaleX(0);\n    transform-origin: left;\n    transition: transform 0.3s ease;\n  }\n\n  .seo-block:hover { background: var(--surface-2); }\n  .seo-block:hover::after { transform: scaleX(1); }\n\n  .seo-block h3 {\n    font-family: 'Barlow Condensed', sans-serif;\n    font-weight: 600;\n    font-size: 16px;\n    text-transform: uppercase;\n    letter-spacing: 0.06em;\n    color: var(--ink);\n    margin-bottom: 10px;\n  }\n\n  .seo-block p {\n    font-size: 13.5px;\n    line-height: 1.7;\n    color: var(--mid-text);\n    font-family: 'Open Sans', sans-serif;\n    font-weight: 300;\n  }\n\n  \/* ─── KEYWORD TAGS ─── *\/\n  .seo-tags {\n    display: flex;\n    flex-wrap: wrap;\n    gap: 8px;\n    padding-top: 8px;\n    border-top: 1px solid var(--border);\n  }\n\n  .seo-tag {\n    font-family: var(--mono);\n    font-size: 11px;\n    letter-spacing: 0.12em;\n    text-transform: uppercase;\n    color: var(--mid-text);\n    border: 1px solid var(--border);\n    padding: 6px 14px;\n    background: var(--surface-2);\n  }\n\n  \/* ─── RESPONSIVE ─── *\/\n  @media (max-width: 900px) {\n    .seo-card { padding: 72px 24px; }\n    .seo-body { grid-template-columns: 1fr; }\n  }\n\u003c\/style\u003e\n\n\u003csection class=\"seo-card\"\u003e\n  \u003cdiv class=\"seo-card-inner\"\u003e\n\n    \u003c!-- LEAD --\u003e\n    \u003cdiv class=\"seo-lead\"\u003e\n      \u003cspan class=\"seo-lead-tag\"\u003e◆ AC Series · Hybrid Full-Range Digital 5-Channel · 2026 Edition\u003c\/span\u003e\n      \u003ch2 class=\"seo-lead-title\"\u003eAUNEX AC1600\u003cspan class=\"red\"\u003eK5\u003c\/span\u003e — 800W Sub + 125W × 4\u003cbr\u003e5-Channel Car Amplifier | Full System. One Amp.\u003c\/h2\u003e\n      \u003cp class=\"seo-lead-intro\"\u003eThe AUNEX AC1600K5 is a hybrid full-range digital 5-channel amplifier that powers your entire car audio system from a single compact chassis. A dedicated \u003cstrong\u003e800W RMS subwoofer channel at 1 ohm\u003c\/strong\u003e pairs with \u003cstrong\u003e125W RMS per channel across four full-range outputs\u003c\/strong\u003e — front stage, rear fill, and sub, all independently verified, all in one install. Less wiring. Less space. No compromise on output.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- BODY BLOCKS --\u003e\n    \u003cdiv class=\"seo-body\"\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003eOne Amp. Complete System.\u003c\/h3\u003e\n        \u003cp\u003eMost builds require two amplifiers — one for the stage, one for the sub. The AC1600K5 eliminates that. A single chassis handles front stage (CH1–CH2), rear fill (CH3–CH4), and a dedicated 1-ohm stable subwoofer channel (CH5) with 800W RMS. One power run. One signal chain. One install done right.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003e800W Sub Channel — 1-Ohm Stable\u003c\/h3\u003e\n        \u003cp\u003eCH5 is a purpose-built subwoofer output rated at 800W RMS at 1Ω, 500W at 2Ω, and 300W at 4Ω — independently verified under real-world conditions. Run a single 1-ohm DVC subwoofer without derating or thermal runaway. A 24dB\/octave low-pass crossover (50–250Hz), subsonic filter (10–50Hz), and 0–18dB bass boost at 45Hz give CH5 full dedicated tuning control.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003e125W × 4 Full-Range Channels\u003c\/h3\u003e\n        \u003cp\u003eCH1–CH4 deliver 125W RMS per channel at 4Ω and 200W at 2Ω — all four channels driven simultaneously, all independently verified. Bridge any pair for 400W RMS into a 4Ω load. An independent HPF crossover (40–400Hz, 18dB\/octave) per channel pair keeps tweeters, mid-bass, and rear fill tuned correctly without a separate DSP.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003e2CH \/ 5CH Input Switch\u003c\/h3\u003e\n        \u003cp\u003eA front-panel input switch selects between 2-channel and 5-channel input modes, making the AC1600K5 compatible with both standard aftermarket head units and OEM source units running through a DSP processor. Input sensitivity spans 250mV to 10V — no additional line-output converter required in most OEM integrations.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003e4-Layer SMD PCB Construction\u003c\/h3\u003e\n        \u003cp\u003eWhere most 5-channel amplifiers at this price point use a 2-layer PCB, the AC1600K5 is built on a 4-layer surface-mount design. Dedicated internal power and ground planes reduce impedance across all five output stages, improve thermal dissipation, and deliver the structural rigidity needed to survive road vibration over the long term.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003eSpectra-Core RGB · Custom Heatsink\u003c\/h3\u003e\n        \u003cp\u003eFull addressable RGB is integrated into the amplifier chassis — no external controller kit, no separate wiring harness. A custom anodized extruded aluminum heatsink manages sustained thermal load across all five channels simultaneously. Remote bass knob ships in the box, ready to install from day one.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n    \u003c\/div\u003e\n\n    \u003c!-- KEYWORD TAGS --\u003e\n    \u003cdiv class=\"seo-tags\"\u003e\n      \u003cspan class=\"seo-tag\"\u003e5-Channel Car Amplifier\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003e800W Subwoofer Channel\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eHybrid 5-Channel Amp\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eFull System Amplifier\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003e1-Ohm Sub Channel\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003e125W x 4 RMS\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eLab-Verified Power\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eAC Series 2026\u003c\/span\u003e\n    \u003c\/div\u003e\n\n  \u003c\/div\u003e\n\u003c\/section\u003e\n","brand":"AUNEX","offers":[{"title":"Default Title","offer_id":45043955105889,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/aunexusa.com\/products\/aunex-ac1600k5-5-channel-car-amplifier-800w-sub-125w-x4","provider":"AUNEX","version":"1.0","type":"link"}