{"product_id":"alliance-audio-vl1500d-monoblock-class-d-amplifier","title":"Alliance Audio VL1500D Monoblock Class D Amplifier","description":"\u003cp\u003eThe \u003cstrong\u003eAlliance Audio VL1500D\u003c\/strong\u003e is a compact, high-efficiency \u003cstrong\u003emonoblock Class D amplifier\u003c\/strong\u003e delivering up to \u003cstrong\u003e375 watts RMS at 1 ohm\u003c\/strong\u003e in a chassis small enough to tuck under a seat or fit in the tightest trunk builds. Engineered for serious bass enthusiasts who need real power without sacrificing install flexibility, the VL1500D pairs precision low-frequency amplification with a rock-solid Class D topology that runs 80% more efficiently than traditional Class A\/B designs — keeping heat low and output consistent even during extended high-volume sessions.\u003c\/p\u003e\u003cp\u003eThe VL1500D features a variable \u003cstrong\u003elow-pass filter (50Hz–220Hz)\u003c\/strong\u003e, a \u003cstrong\u003esubsonic\/high-pass filter (10Hz–50Hz)\u003c\/strong\u003e, and a \u003cstrong\u003e0–12dB variable bass boost\u003c\/strong\u003e for dialing in your exact sub-bass response without an external processor. With an input sensitivity range of \u003cstrong\u003e0.2V to 9V\u003c\/strong\u003e, it integrates cleanly with both factory head units and aftermarket source units. A \u003cstrong\u003edamping factor of 150\u003c\/strong\u003e ensures tight, controlled woofer movement for punchy, accurate bass reproduction. The included \u003cstrong\u003ewired sub-level remote\u003c\/strong\u003e lets you adjust bass output on the fly from the driver's seat — no reaching into the trunk required.\u003c\/p\u003e\u003cp\u003eAt just \u003cstrong\u003e14.7 cm × 20.8 cm × 4.8 cm\u003c\/strong\u003e and 1.8 kg, the VL1500D is purpose-built for stealth installs where space is at a premium. It operates across a wide voltage range of \u003cstrong\u003e9V–16V\u003c\/strong\u003e, draws a maximum of 45A at full tilt, and is recommended to be fused at 30A for safe, reliable operation. Whether you're powering a single 10\", 12\", or 15\" subwoofer in a ported or sealed enclosure, the Alliance Audio VL1500D delivers clean, efficient, high-output bass amplification in a package that fits anywhere.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the Alliance Audio VL1500D?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Monoblock Design:\u003c\/strong\u003e At just 14.7 × 20.8 × 4.8 cm, it fits under seats, in small trunk corners, or behind panels where full-size amps won't go.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Efficiency Class D Topology:\u003c\/strong\u003e Runs 80% more efficiently than Class A\/B, generating less heat and drawing less current for the same output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e375W RMS at 1 Ohm:\u003c\/strong\u003e Stable 1-ohm operation lets you wire dual voice coil subwoofers in parallel for maximum power delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Bass Boost (0–12dB):\u003c\/strong\u003e Dial in the exact low-frequency emphasis your system needs without an outboard equalizer or processor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired Remote Sub Control Included:\u003c\/strong\u003e Adjust bass level from the driver's seat without touching the amp — ideal for daily drivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Input Sensitivity (0.2V–9V):\u003c\/strong\u003e Compatible with factory head units, aftermarket decks, and DSP outputs without additional signal adapters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-In Crossover Filters:\u003c\/strong\u003e Onboard LPF (50–220Hz) and subsonic filter (10–50Hz) protect your subwoofer and keep your bass tight and clean.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamping Factor of 150:\u003c\/strong\u003e Delivers precise woofer control for punchy, accurate sub-bass rather than loose, boomy output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAmplifier \u0026amp; Subwoofer Pairing Recommendations\u003c\/h2\u003e\n\u003cp\u003eThe VL1500D is best matched with a single subwoofer rated between 150–375W RMS, or a dual voice coil subwoofer wired to a 1-ohm or 2-ohm load. For a ported enclosure build, set the low-pass filter between 80–120Hz and the subsonic filter at 25–35Hz to protect the woofer from over-excursion below the box's tuning frequency. For sealed enclosures, a low-pass setting of 80Hz with no subsonic filter is typically sufficient. Wire the amp with a minimum 4-gauge power and ground cable, and use the included remote to fine-tune bass output for different music genres on the fly.\u003c\/p\u003e\n\n\u003ch2\u003eFull Specifications\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAlliance Audio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eVL1500D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplifier Class\u003c\/td\u003e\n\u003ctd\u003eClass D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e1 (Monoblock)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Power\u003c\/td\u003e\n\u003ctd\u003e1500W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power @ 1Ω \/ 14.4V\u003c\/td\u003e\n\u003ctd\u003e375W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power @ 2Ω \/ 14.4V\u003c\/td\u003e\n\u003ctd\u003e187.5W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Power @ 4Ω \/ 14.4V\u003c\/td\u003e\n\u003ctd\u003e93.75W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e15Hz – 250Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal-to-Noise Ratio\u003c\/td\u003e\n\u003ctd\u003e91dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Sensitivity\u003c\/td\u003e\n\u003ctd\u003e0.2V – 9V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDamping Factor\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e9V – 16V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh Pass \/ Subsonic Filter\u003c\/td\u003e\n\u003ctd\u003e10Hz – 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow Pass Filter\u003c\/td\u003e\n\u003ctd\u003e50Hz – 220Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBass Boost\u003c\/td\u003e\n\u003ctd\u003e0 – 12dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Current Draw\u003c\/td\u003e\n\u003ctd\u003e45A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMusic Current Draw\u003c\/td\u003e\n\u003ctd\u003e24A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuse Recommendation\u003c\/td\u003e\n\u003ctd\u003e30A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W × L × H)\u003c\/td\u003e\n\u003ctd\u003e14.7 cm × 20.8 cm × 4.8 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.8 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat size subwoofer pairs best with the VL1500D?\u003c\/strong\u003e\u003cbr\u003eThe VL1500D works well with 10\", 12\", or 15\" subwoofers rated between 150–375W RMS. A dual 2-ohm DVC subwoofer wired in parallel to 1 ohm will unlock the full 375W RMS output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this amp with a factory head unit?\u003c\/strong\u003e\u003cbr\u003eYes. The wide input sensitivity range (0.2V–9V) makes the VL1500D fully compatible with low-voltage factory outputs. No line output converter is required in most cases.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this amp better suited for a ported or sealed enclosure?\u003c\/strong\u003e\u003cbr\u003eBoth work well. Ported enclosures will maximize output and low-frequency extension; sealed enclosures will deliver tighter, more accurate bass. Use the subsonic filter (set around 30Hz) when running ported to protect the woofer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat gauge power wire do I need?\u003c\/strong\u003e\u003cbr\u003eAlliance Audio recommends a minimum 4-gauge power and ground cable for the VL1500D. Use a 30A inline fuse within 18 inches of the battery for safe, code-compliant installation.\u003c\/p\u003e","brand":"Alliance Audio","offers":[{"title":"Default Title","offer_id":43697599250499,"sku":"VL1500D","price":169.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/9575\/7123\/files\/VL1500D_Front-1.png?v=1787241731","url":"https:\/\/www.trinitycaraudio.com\/products\/alliance-audio-vl1500d-monoblock-class-d-amplifier","provider":"Trinity Car Audio","version":"1.0","type":"link"}