{"product_id":"soundqubed-hdb2-10d4","title":"SoundQubed HDB2-10D4 10\" HDB2 Series Sub, D4, 400w\/800w","description":"\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e HDB2-10D4   \u003cstrong\u003eSold as:\u003c\/strong\u003e Each\u003c\/p\u003e\u003cp\u003eSoundQubed 10\" HDB2 Series Sub, D4, 400w\/800w\u003c\/p\u003e\u003cp\u003eThe SoundQubed HDB2-10-D4 is a competition-grade 10” subwoofer built for serious bass enthusiasts who demand powerful, controlled low-frequency performance. With dual 4-ohm voice coils and 400W RMS \/ 800W peak power handling, this sub delivers deep, accurate bass with enhanced heat dissipation for long-lasting performance. Featuring a conical paper cone, PPI dust cap, and foam surround housed in a steel black basket, it’s built for strength and precision. The 2” black aluminum voice coil and 87dB sensitivity allow for efficient output in both sealed and ported enclosures. Ideal for custom installs and SPL builds where punch, durability, and depth are non-negotiable.\u003c\/p\u003e\u003cp\u003eGeneral Specifications\u003cbr\u003eNominal Diameter: 10\" \/ 254mm\u003cbr\u003eNominal Impedance: 4+4 Ohms\u003cbr\u003eRMS Power Handling: 400W\u003cbr\u003eMAX Power Handling: 800W\u003cbr\u003eSensitivity (1w\/1m): 87dB\u003cbr\u003eFrequency Response: 25-300 KHz\u003cbr\u003eRecommended Low-Pass Crossover: 120 Hz\u003cbr\u003eFeatures\u003cbr\u003eImproved Heat Dissipation\u003cbr\u003eCone Shape: Conical\u003cbr\u003eSpeaker Terminals: Push 8Ga\u003cbr\u003eThiele \u0026amp; Small Parameters\u003cbr\u003eEquivalent Volume (Vas): 10.6L \/ 0.37ft³\u003cbr\u003eExcursion (one way) (Xmax): 7.75mm\u003cbr\u003eFree Air Resonance (Fs): 42 Hz\u003cbr\u003eMechanical Factor (Qms): 5.191\u003cbr\u003eElectrical Factor (Qes): 0.616\u003cbr\u003eTotal Factor (Qts): 0.551\u003cbr\u003eMechanical Mass (Mms): 123.04g\u003cbr\u003eMechanical Compliance (Cms): 0.069mm\/N\u003cbr\u003eBL Factor (BL): 10.905\u003cbr\u003eVoice Coil Inductance (Le): 8.22 mH\u003cbr\u003eCone Area (Sd): 330.06 Cm²\u003cbr\u003eDC Resistance (Re): 3.2 + 3.2 ohms\u003cbr\u003eEfficiency Bandwidth Product (EBP): 68.1\u003cbr\u003eMeasurements\u003cbr\u003eOverall Diameter: 10.6\" \/ 270mm\u003cbr\u003eOverall Depth: 6.4\" \/ 162.4mm\u003cbr\u003eFront Mount Baffle Cutout: 9.2\" \/ 234mm\u003cbr\u003eMounting Depth: 5.4\" \/ 137mm\u003cbr\u003eMotor Diameter: 6.14\" \/ 156mm\u003c\/p\u003e","brand":"SoundQubed","offers":[{"title":"Default Title","offer_id":47640279154850,"sku":"HDB2-10D4","price":169.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0455\/3526\/4930\/files\/HDB2-10D4_lg.png?v=1789044733","url":"https:\/\/tdscaraudio.com\/products\/soundqubed-hdb2-10d4","provider":"TDS Car Audio","version":"1.0","type":"link"}