{"title":"Amplifiers","description":"\u003cp\u003eLet's be real: factory radios and stock stereos just don't have the guts to run aftermarket gear the way it was designed to play. If you want loud, clear music that doesn't clip, fade, or distort the second you turn the volume knob up, a dedicated amplifier isn't optional—it’s the backbone of your build.\u003cbr\u003eWe put this collection together using the latest advancements in H\u003cstrong\u003eigh-Speed Class-D and Full-Range Digital Amplifier Technology\u003c\/strong\u003e. These designs don't eat up your car's battery or take over your entire trunk like old-school setups used to. Instead, they pack massive, clean power into compact frames that run cool for hours on end. Whether you are building a budget-conscious daily driver or a competition-grade wall, we have the exact layout your system needs.\u003c\/p\u003e","products":[{"product_id":"aunex-ac1800kd1-class-d-monoblock-amplifier-1800w-rms","title":"AC1800KD1","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 · Class-D Monoblock · 2026 Edition\u003c\/span\u003e\n      \u003ch2 class=\"seo-lead-title\"\u003eAUNEX AC1800\u003cspan class=\"red\"\u003eKD1\u003c\/span\u003e — 1800W RMS\u003cbr\u003eClass-D Monoblock Car Amplifier | 1-Ohm Stable\u003c\/h2\u003e\n      \u003cp class=\"seo-lead-intro\"\u003eThe AUNEX AC1800KD1 is a compact, full-power Class-D monoblock amplifier engineered for high-output subwoofer systems where verified performance matters. Rated at \u003cstrong\u003e1,800 watts RMS at 1 ohm\u003c\/strong\u003e — not peak, not burst — every unit is independently lab-tested at rated power before it ships. What's on the spec sheet is what comes out of the terminals.\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\u003eIndependently Verified RMS Power\u003c\/h3\u003e\n        \u003cp\u003eUnlike inflated peak-power ratings common in the car audio market, the AC1800KD1 is rated under real-world operating conditions: 14.4V DC, full bandwidth, both channels driven. 1,800W at 1Ω. 1,200W at 2Ω. 650W at 4Ω. No asterisks. No fine print. Just the power we promised.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003e1-Ohm Mono Stable — By Design\u003c\/h3\u003e\n        \u003cp\u003e1-ohm stability is built into the AC Series topology, not a premium feature. Drive your subwoofer at a 1-ohm load without thermal derating, current limiting, or protection-circuit interference. Class-D efficiency means the compact chassis stays cool under extended high-power operation.\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 car amplifiers use a 2-layer PCB, the AC1800KD1 is built on a 4-layer surface-mount design. Additional copper layers reduce power-plane impedance, improve thermal dissipation, and deliver structural rigidity that holds up to vehicle vibration over time.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003eUniversal Source Compatibility\u003c\/h3\u003e\n        \u003cp\u003eZero-Point Balanced inputs (CMRR architecture) reject common-mode noise from vehicle electrical systems. Input sensitivity spans 400mV to 20V — compatible with factory OEM head units via high-level input, aftermarket receivers, and DSP processors. No additional adapter required in most installations.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003eComplete Tuning Control\u003c\/h3\u003e\n        \u003cp\u003eVariable low-pass crossover (50–250Hz, 24dB\/octave), subsonic filter (10–50Hz), bass boost (0–18dB @ 45Hz), phase switch (0°\/180°), and an LED clipping indicator for real-time distortion monitoring during setup. Remote bass knob included in the box — not a $30 accessory.\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. Ready to configure and mount 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\"\u003e1800W RMS Monoblock\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eClass-D Car Amplifier\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003e1-Ohm Stable Amp\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003e4-Layer SMD PCB\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eSubwoofer Amplifier\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eCompact Car Amp\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      \u003cspan class=\"seo-tag\"\u003eCategory ID: 3583\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":44821119467617,"sku":"AC1800KD1","price":569.99,"currency_code":"USD","in_stock":false}]},{"product_id":"aunex-ac800kd1-class-d-monoblock-amplifier-800w-rms","title":"AC800KD1","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 · Class-D Monoblock · 2026 Edition\u003c\/span\u003e\n      \u003ch2 class=\"seo-lead-title\"\u003eAUNEX AC800\u003cspan class=\"red\"\u003eKD1\u003c\/span\u003e — 800W RMS\u003cbr\u003eClass-D Monoblock Car Amplifier | 1-Ohm Stable\u003c\/h2\u003e\n      \u003cp class=\"seo-lead-intro\"\u003eThe AUNEX AC800KD1 is a compact, full-power Class-D monoblock amplifier built for high-output subwoofer systems in space-constrained installs. Rated at \u003cstrong\u003e800 watts RMS at 1 ohm\u003c\/strong\u003e — not peak, not burst — every unit is independently lab-tested at rated power before it ships. At just 6.71″ in length, it delivers serious subwoofer performance without sacrificing trunk real estate.\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\u003eIndependently Verified RMS Power\u003c\/h3\u003e\n        \u003cp\u003eUnlike inflated peak-power ratings common in the car audio market, the AC800KD1 is rated under real-world operating conditions: 14.4V DC, full bandwidth, both channels driven. 800W at 1Ω. 500W at 2Ω. 300W at 4Ω. No asterisks. No fine print. Just the power we promised.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003e1-Ohm Mono Stable — By Design\u003c\/h3\u003e\n        \u003cp\u003e1-ohm stability is built into the AC Series topology, not a premium feature. Drive your subwoofer at a 1-ohm load without thermal derating, current limiting, or protection-circuit interference. Class-D efficiency means the compact chassis stays cool under extended high-power operation.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003eCompact Build. Full-Power Output.\u003c\/h3\u003e\n        \u003cp\u003eAt 5.70″ wide and just 6.71″ long, the AC800KD1 fits where larger monoblocks cannot — under seats, in shallow trunk compartments, and custom enclosure panels — without compromising output. The 4-layer SMD PCB delivers the structural rigidity and thermal performance of a full-size build in a significantly smaller footprint.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003eUltra-Low Noise Floor — \u0026gt;105 dB S\/N\u003c\/h3\u003e\n        \u003cp\u003eWith a signal-to-noise ratio exceeding 105 dB, the AC800KD1 delivers a dead-silent background between bass hits. Zero-Point Balanced inputs (CMRR architecture) reject alternator whine and ignition interference at the point of entry. Input sensitivity spans 250mV to 10V, compatible with factory OEM head units and aftermarket processors alike.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003eComplete Tuning Control\u003c\/h3\u003e\n        \u003cp\u003eVariable low-pass crossover (50–250Hz, 24dB\/octave), subsonic filter (10–50Hz), bass boost (0–18dB @ 45Hz), phase switch (0°\/180°), and an LED clipping indicator for real-time distortion monitoring during setup. Remote bass knob included in the box — not a $30 accessory.\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 the AC800KD1’s compact form factor. Ready to configure and mount 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\"\u003e800W RMS Monoblock\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eClass-D Car Amplifier\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003e1-Ohm Stable Amp\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eCompact Monoblock Amp\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eSmall Car Amplifier\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eSubwoofer Amplifier\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":45039734718561,"sku":"AC1800KD1","price":569.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0618\/0785\/3665\/files\/IMG_1072.jpg?v=1779496378"},{"product_id":"aunex-ac1200kd1-class-d-monoblock-amplifier-1200w-rms","title":"AC1200KD1","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 · Class-D Monoblock · 2026 Edition\u003c\/span\u003e\n      \u003ch2 class=\"seo-lead-title\"\u003eAUNEX AC1200\u003cspan class=\"red\"\u003eKD1\u003c\/span\u003e — 1200W RMS\u003cbr\u003eClass-D Monoblock Car Amplifier | 1-Ohm Stable\u003c\/h2\u003e\n      \u003cp class=\"seo-lead-intro\"\u003eThe AUNEX AC1200KD1 is a compact, full-power Class-D monoblock amplifier built for high-output subwoofer systems where verified performance matters. Rated at \u003cstrong\u003e1,200 watts RMS at 1 ohm\u003c\/strong\u003e — not peak, not burst — every unit is independently lab-tested at rated power before it ships. What’s on the spec sheet is what comes out of the terminals.\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\u003eIndependently Verified RMS Power\u003c\/h3\u003e\n        \u003cp\u003eUnlike inflated peak-power ratings common in the car audio market, the AC1200KD1 is rated under real-world operating conditions: 14.4V DC, full bandwidth, both channels driven. 1,200W at 1Ω. 700W at 2Ω. 400W at 4Ω. No asterisks. No fine print. Just the power we promised.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003e1-Ohm Mono Stable — By Design\u003c\/h3\u003e\n        \u003cp\u003e1-ohm stability is built into the AC Series topology, not a premium feature. Drive your subwoofer at a 1-ohm load without thermal derating, current limiting, or protection-circuit interference. Class-D efficiency means the compact chassis stays cool under extended high-power operation.\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 car amplifiers use a 2-layer PCB, the AC1200KD1 is built on a 4-layer surface-mount design. Additional copper layers reduce power-plane impedance, improve thermal dissipation, and deliver structural rigidity that holds up to vehicle vibration over time.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003eUniversal Source Compatibility\u003c\/h3\u003e\n        \u003cp\u003eZero-Point Balanced inputs (CMRR architecture) reject common-mode noise from vehicle electrical systems. Input sensitivity spans 400mV to 20V — compatible with factory OEM head units via high-level input, aftermarket receivers, and DSP processors. No additional adapter required in most installations.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003eComplete Tuning Control\u003c\/h3\u003e\n        \u003cp\u003eVariable low-pass crossover (50–250Hz, 24dB\/octave), subsonic filter (10–50Hz), bass boost (0–18dB @ 45Hz), phase switch (0°\/180°), and an LED clipping indicator for real-time distortion monitoring during setup. Remote bass knob included in the box — not a $30 accessory.\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 at the AC1200KD1’s compact 8.28″ chassis length. Ready to configure and mount 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\"\u003e1200W RMS Monoblock\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eClass-D Car Amplifier\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003e1-Ohm Stable Amp\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003e4-Layer SMD PCB\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eSubwoofer Amplifier\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eCompact Car Amp\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":45043765837921,"sku":null,"price":569.99,"currency_code":"USD","in_stock":false}]},{"product_id":"ac1800kd1-v2","title":"AC1800KD1 (v2)","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 · Class-D Monoblock · 2026 Edition\u003c\/span\u003e\n      \u003ch2 class=\"seo-lead-title\"\u003eAUNEX AC1800\u003cspan class=\"red\"\u003eKD1\u003c\/span\u003e — 1800W RMS\u003cbr\u003eClass-D Monoblock Car Amplifier | 1-Ohm Stable\u003c\/h2\u003e\n      \u003cp class=\"seo-lead-intro\"\u003eThe AUNEX AC1800KD1 is a compact, full-power Class-D monoblock amplifier engineered for high-output subwoofer systems where verified performance matters. Rated at \u003cstrong\u003e1,800 watts RMS at 1 ohm\u003c\/strong\u003e — not peak, not burst — every unit is independently lab-tested at rated power before it ships. What's on the spec sheet is what comes out of the terminals.\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\u003eIndependently Verified RMS Power\u003c\/h3\u003e\n        \u003cp\u003eUnlike inflated peak-power ratings common in the car audio market, the AC1800KD1 is rated under real-world operating conditions: 14.4V DC, full bandwidth, both channels driven. 1,800W at 1Ω. 1,200W at 2Ω. 650W at 4Ω. No asterisks. No fine print. Just the power we promised.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003e1-Ohm Mono Stable — By Design\u003c\/h3\u003e\n        \u003cp\u003e1-ohm stability is built into the AC Series topology, not a premium feature. Drive your subwoofer at a 1-ohm load without thermal derating, current limiting, or protection-circuit interference. Class-D efficiency means the compact chassis stays cool under extended high-power operation.\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 car amplifiers use a 2-layer PCB, the AC1800KD1 is built on a 4-layer surface-mount design. Additional copper layers reduce power-plane impedance, improve thermal dissipation, and deliver structural rigidity that holds up to vehicle vibration over time.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003eUniversal Source Compatibility\u003c\/h3\u003e\n        \u003cp\u003eZero-Point Balanced inputs (CMRR architecture) reject common-mode noise from vehicle electrical systems. Input sensitivity spans 400mV to 20V — compatible with factory OEM head units via high-level input, aftermarket receivers, and DSP processors. No additional adapter required in most installations.\u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"seo-block\"\u003e\n        \u003ch3\u003eComplete Tuning Control\u003c\/h3\u003e\n        \u003cp\u003eVariable low-pass crossover (50–250Hz, 24dB\/octave), subsonic filter (10–50Hz), bass boost (0–18dB @ 45Hz), phase switch (0°\/180°), and an LED clipping indicator for real-time distortion monitoring during setup. Remote bass knob included in the box — not a $30 accessory.\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. Ready to configure and mount 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\"\u003e1800W RMS Monoblock\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eClass-D Car Amplifier\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003e1-Ohm Stable Amp\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003e4-Layer SMD PCB\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eSubwoofer Amplifier\u003c\/span\u003e\n      \u003cspan class=\"seo-tag\"\u003eCompact Car Amp\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      \u003cspan class=\"seo-tag\"\u003eCategory ID: 3583\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":45100347850849,"sku":"AC1800KD1","price":529.99,"currency_code":"USD","in_stock":false}]}],"url":"https:\/\/aunexusa.com\/collections\/amplifiers.oembed","provider":"AUNEX","version":"1.0","type":"link"}