{"product_id":"soundqubed-hds2-3-series-8-subwoofer-2-5-dvc-700-watts-rms-d2-d4","title":"Soundqubed HDS2.3 Series 8\" Subwoofer 2.5\" DVC 700 Watts RMS D2\/D4","description":"\u003ch2\u003e\n\u003cstrong\u003eSoundQubed HDS2.3-8\u003c\/strong\u003e — 8\" Subwoofer | 700W RMS | Dual 2 or Dual 4 Ohm\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSoundQubed HDS2.3-8\u003c\/strong\u003e is an 8\" subwoofer that refuses to play small. Rated at \u003cstrong\u003e700W RMS \/ 1,400W Peak\u003c\/strong\u003e, this driver delivers the kind of authoritative, ground-shaking bass you'd expect from a much larger woofer — all in a compact 8\" platform built for tight enclosures and space-constrained builds. With a resonant frequency of 40.1 Hz (D2) \/ 41.6 Hz (D4) and sensitivity of 81.3 dB (D2) \/ 80.6 dB (D4), the HDS2.3-8 hits low, hits hard, and stays clean under sustained power.\u003c\/p\u003e\n\n\u003cp\u003eThe motor assembly features a \u003cstrong\u003e100 oz magnet\u003c\/strong\u003e paired with a \u003cstrong\u003e2.5\" dual voice coil\u003c\/strong\u003e wound to 36mm — a serious coil length for an 8\" driver that translates directly into superior thermal management and long-term reliability. The \u003cstrong\u003e13mm Xmax\u003c\/strong\u003e (23mm Xmech) gives this sub impressive linear excursion for its size, while the 196 cm² cone area (SD) moves real air. Available in \u003cstrong\u003eDual 2 Ohm\u003c\/strong\u003e and \u003cstrong\u003eDual 4 Ohm\u003c\/strong\u003e configurations, the HDS2.3-8 wires to 1Ω, 2Ω, or 4Ω to match virtually any mono amplifier on the market.\u003c\/p\u003e\n\n\u003cp\u003eThe HDS2.3-8 is at home in sealed enclosures from \u003cstrong\u003e0.35–0.75 ft³\u003c\/strong\u003e for tight, accurate bass, or ported boxes from \u003cstrong\u003e0.75–1.25 ft³\u003c\/strong\u003e for maximum output and low-frequency extension. Whether you're building a compact daily driver system, a motorcycle audio setup, or a space-efficient SQL build, the HDS2.3-8 delivers premium performance without demanding premium real estate. Pair it with a 300–700W RMS mono amplifier for best results.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the SoundQubed HDS2.3-8?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e700W RMS \/ 1,400W Peak Power Handling\u003c\/strong\u003e — Exceptional output for an 8\" driver, built for daily SQL and moderate competition applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100 oz Magnet Structure\u003c\/strong\u003e — Oversized motor delivers strong BL force, tight transient response, and excellent control over cone movement.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2.5\" Dual Voice Coil (36mm Wind)\u003c\/strong\u003e — Extended coil length maximizes heat dissipation, keeping the driver cool and reliable under sustained high-power use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e13mm Xmax \/ 23mm Xmech\u003c\/strong\u003e — Impressive linear excursion for an 8\" sub, delivering deep, distortion-free bass at high output levels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eD2 or D4 Impedance Options\u003c\/strong\u003e — Wire to 1Ω, 2Ω, or 4Ω to match your amplifier's optimal stable load.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e81.3 \/ 80.6 dB Sensitivity\u003c\/strong\u003e — Efficient enough to perform well with a wide range of amplifier power levels.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Enclosure Compatibility\u003c\/strong\u003e — Sealed 0.35–0.75 ft³ or ported 0.75–1.25 ft³ for maximum install flexibility in tight spaces.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSoundQubed HDS2.3 Series Build Quality\u003c\/strong\u003e — Competition-grade materials and engineering at a daily-driver price point.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAmplifier \u0026amp; Enclosure Recommendations\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eAmplifier Pairing:\u003c\/strong\u003e The HDS2.3-8 is rated at 700W RMS, so target a mono amplifier delivering \u003cstrong\u003e300–700W RMS\u003c\/strong\u003e at your chosen final impedance. The \u003cstrong\u003eDual 2 Ohm\u003c\/strong\u003e variant wires to \u003cstrong\u003e1Ω\u003c\/strong\u003e (parallel) or \u003cstrong\u003e4Ω\u003c\/strong\u003e (series). The \u003cstrong\u003eDual 4 Ohm\u003c\/strong\u003e variant wires to \u003cstrong\u003e2Ω\u003c\/strong\u003e (parallel) or \u003cstrong\u003e8Ω\u003c\/strong\u003e (series). For most daily builds, wiring the D2 to 2Ω or the D4 to 2Ω gives you the best balance of power and amplifier stability. A quality 500W RMS mono block at 2Ω is the sweet spot for this driver.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEnclosure:\u003c\/strong\u003e For \u003cstrong\u003esealed\u003c\/strong\u003e installs, target \u003cstrong\u003e0.35–0.75 ft³\u003c\/strong\u003e net internal volume for tight, accurate bass with excellent transient response — ideal for rock, country, and acoustic genres. For \u003cstrong\u003eported\u003c\/strong\u003e builds, use \u003cstrong\u003e0.75–1.25 ft³\u003c\/strong\u003e net with a port tuned to 33–42 Hz for added output and low-frequency extension — perfect for hip-hop, EDM, and bass-heavy content. The HDS2.3-8 is well-suited for compact custom enclosures, under-seat boxes, and space-efficient builds where an 8\" is the largest driver that will fit.\u003c\/p\u003e\n\n\u003ch2\u003eFull Specifications — T\/S Parameters\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:left;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eHDS2.3-8D2\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eHDS2.3-8D4\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eWoofer Size\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e8\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eRMS Power\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e700W\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e700W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003ePeak Power\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e1,400W\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e1,400W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eMagnet Weight\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e100 oz\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e100 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eCoil Diameter\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e2.5 in\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e2.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eCoil Length\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e36 mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e36 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eFs\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e40.1 Hz\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e41.6 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eImpedance\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e2+2 Ohm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e4+4 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eQMS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e6.13\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e5.48\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eQES\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.69\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eQTS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.62\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.66\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eVAS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e5.1 L\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e5.1 L\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eLe\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e2.20 mH\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e2.42 mH\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eη₀ (No)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.05%\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.05%\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eCMS\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.10 mm\/N\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.10 mm\/N\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eSensitivity (1W\/1m)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e81.3 dB\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e80.6 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eBL\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e15.1 N\/A\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e19.2 N\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eXmax (±)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e13 mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e13 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eXmech (±)\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e23 mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e23 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eSD\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e196 cm²\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e196 cm²\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eMounting Dimensions\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:left;\"\u003eModel\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eA\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eB\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eC\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eD\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eHDS2.3-8D2\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e220 mm \/ 8.66\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e185 mm \/ 7.28\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e162 mm \/ 6.38\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e146 mm \/ 5.75\"\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eHDS2.3-8D4\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e220 mm \/ 8.66\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e185 mm \/ 7.28\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e162 mm \/ 6.38\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e146 mm \/ 5.75\"\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEnclosure Suggestions\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:left;\"\u003eEnclosure Type\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eHDS2.3-8D2\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eHDS2.3-8D4\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003eSealed Enclosure\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.35–0.75 ft³\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.35–0.75 ft³\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003ePorted Enclosure\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.75–1.25 ft³\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.75–1.25 ft³\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\n\u003cp\u003e\u003cstrong\u003eQ: What amplifier should I pair with the HDS2.3-8?\u003c\/strong\u003e\u003cbr\u003e\nA: Target a mono amplifier rated at \u003cstrong\u003e300–700W RMS\u003c\/strong\u003e at your final impedance. Wire the D2 to 1Ω or 4Ω, or the D4 to 2Ω or 8Ω. A 500W RMS mono block at 2Ω is the sweet spot for most daily builds.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What's the difference between the D2 and D4 versions?\u003c\/strong\u003e\u003cbr\u003e\nA: Both handle the same power and share identical physical specs. The \u003cstrong\u003eD2 (Dual 2 Ohm)\u003c\/strong\u003e wires to 1Ω or 4Ω; the \u003cstrong\u003eD4 (Dual 4 Ohm)\u003c\/strong\u003e wires to 2Ω or 8Ω. Choose based on your amplifier's stable impedance rating.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What box size does the HDS2.3-8 need?\u003c\/strong\u003e\u003cbr\u003e\nA: Sealed: \u003cstrong\u003e0.35–0.75 ft³\u003c\/strong\u003e for tight, accurate bass. Ported: \u003cstrong\u003e0.75–1.25 ft³\u003c\/strong\u003e tuned to 33–42 Hz for more output and extension. This driver works great in compact custom enclosures and space-efficient builds.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is this sub good for daily use or competition?\u003c\/strong\u003e\u003cbr\u003e\nA: The HDS2.3-8 is primarily a \u003cstrong\u003edaily SQL driver\u003c\/strong\u003e — optimized for sound quality and reliable output at 700W RMS. It will outperform most 8\" drivers in its class for everyday listening and moderate SQL builds, and can handle light competition duty as well.\u003c\/p\u003e","brand":"SoundQubed","offers":[{"title":"Dual 2 Ohm","offer_id":43672737284163,"sku":null,"price":209.95,"currency_code":"USD","in_stock":true},{"title":"Dual 4 Ohm","offer_id":43672737316931,"sku":null,"price":209.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/9575\/7123\/files\/SoundqubedHDS2.38insubwooferfront.png?v=1786718063","url":"https:\/\/www.trinitycaraudio.com\/products\/soundqubed-hds2-3-series-8-subwoofer-2-5-dvc-700-watts-rms-d2-d4","provider":"Trinity Car Audio","version":"1.0","type":"link"}