{"product_id":"soundqubed-hds2-3-series-6-5-subwoofer-2-5-dvc-500-watts-rms-d2-d4","title":"Soundqubed HDS2.3 Series 6.5\" Subwoofer 2.5\" DVC 500 Watts RMS D2\/D4","description":"\u003ch2\u003e\n\u003cstrong\u003eSoundQubed HDS2.3-6\u003c\/strong\u003e — 6.5\" Subwoofer | 500W RMS | Dual 2 or Dual 4 Ohm\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eSoundQubed HDS2.3-6\u003c\/strong\u003e is a compact, high-output 6.5\" subwoofer engineered for enthusiasts who demand real bass in tight spaces. Rated at \u003cstrong\u003e500W RMS \/ 1,000W Peak\u003c\/strong\u003e, this driver punches well above its size class — delivering tight, authoritative low-end whether you're building a daily SQL system or a space-constrained competition entry. With a resonant frequency of 53.0 Hz and a sensitivity of 79.5 dB (D2) \/ 80.2 dB (D4), the HDS2.3-6 responds fast and hits hard without sacrificing clarity.\u003c\/p\u003e\n\n\u003cp\u003eUnder the cone, SoundQubed packed a \u003cstrong\u003e63 oz magnet\u003c\/strong\u003e and a \u003cstrong\u003e2\" dual voice coil\u003c\/strong\u003e with 26mm of winding length for exceptional thermal management in a compact motor. The \u003cstrong\u003e9mm Xmax\u003c\/strong\u003e (17mm Xmech) gives this 6.5\" driver surprising linear excursion, while the 139 cm² cone area (SD) moves serious air for its size. Available in \u003cstrong\u003eDual 2 Ohm\u003c\/strong\u003e and \u003cstrong\u003eDual 4 Ohm\u003c\/strong\u003e configurations, the HDS2.3-6 wires to 1Ω, 2Ω, or 4Ω final loads to match virtually any mono amplifier on the market.\u003c\/p\u003e\n\n\u003cp\u003eThe HDS2.3-6 thrives in sealed enclosures from \u003cstrong\u003e0.25–0.5 ft³\u003c\/strong\u003e for tight, accurate bass, or ported boxes from \u003cstrong\u003e0.25–0.75 ft³\u003c\/strong\u003e for added output and extension. Ideal for compact builds, under-seat installs, motorcycle audio, and any application where space is at a premium but bass quality is non-negotiable. Pairs perfectly with a 150–300W RMS mono amplifier for daily use.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose the SoundQubed HDS2.3-6?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e500W RMS \/ 1,000W Peak Power Handling\u003c\/strong\u003e — Serious output from a 6.5\" platform, built for daily and SQL applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e63 oz Magnet Structure\u003c\/strong\u003e — Oversized motor for a 6.5\" driver, delivering strong BL force and tight transient response.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2\" Dual Voice Coil (26mm Wind)\u003c\/strong\u003e — Extended coil length improves heat dissipation and keeps the driver cool under sustained power.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e9mm Xmax \/ 17mm Xmech\u003c\/strong\u003e — Impressive linear excursion for a compact sub, maximizing output without over-excursion.\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 load.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e79.5–80.2 dB Sensitivity\u003c\/strong\u003e — Efficient enough to perform well with modest amplifier power.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Enclosure Compatibility\u003c\/strong\u003e — Sealed 0.25–0.5 ft³ or ported 0.25–0.75 ft³ for maximum install flexibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSoundQubed HDS2.3 Series Build Quality\u003c\/strong\u003e — Engineered for real-world durability with competition-grade materials 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 HDS2.3-6 is rated at 500W RMS, so target a mono amplifier delivering \u003cstrong\u003e150–500W 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. Avoid exceeding rated RMS — this driver is built for quality output, not abuse.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEnclosure:\u003c\/strong\u003e For \u003cstrong\u003esealed\u003c\/strong\u003e installs, target \u003cstrong\u003e0.25–0.5 ft³\u003c\/strong\u003e net internal volume for tight, accurate bass with excellent transient response — ideal for music genres like rock, country, and jazz. For \u003cstrong\u003eported\u003c\/strong\u003e builds, use \u003cstrong\u003e0.25–0.75 ft³\u003c\/strong\u003e net with a port tuned to 35–45 Hz for added output and low-frequency extension — great for hip-hop, EDM, and bass-heavy content. Under-seat enclosures and compact custom boxes are ideal applications for this driver.\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;\"\u003eHDS2.3-6D2\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eHDS2.3-6D4\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;\"\u003e6.5\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e6.5\"\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;\"\u003e500W\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e500W\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;\"\u003e1,000W\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e1,000W\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;\"\u003e63 oz\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e63 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 in\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e2 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;\"\u003e26 mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e26 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;\"\u003e53.0 Hz\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e53.0 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;\"\u003e8.57\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e6.21\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;\"\u003e0.77\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.81\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;\"\u003e0.69\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.72\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;\"\u003e2.9 L\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e2.9 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;\"\u003e1.53 mH\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e1.68 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;\"\u003e0.11 mm\/N\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.11 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;\"\u003e79.5 dB\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e80.2 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;\"\u003e11.7 N\/A\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e15.3 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;\"\u003e9 mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e9 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;\"\u003e17 mm\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e17 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;\"\u003e139 cm²\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e139 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;\"\u003eHDS2.3-6D2\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e180 mm \/ 7.09\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e150 mm \/ 5.9\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e140 mm \/ 5.51\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e109 mm \/ 4.29\"\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003eHDS2.3-6D4\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e180 mm \/ 7.09\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e150 mm \/ 5.9\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e140 mm \/ 5.51\"\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e109 mm \/ 4.29\"\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;\"\u003eHDS2.3-6D2\u003c\/th\u003e\n      \u003cth style=\"background-color:#222;color:#fff;padding:8px;text-align:center;\"\u003eHDS2.3-6D4\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;\"\u003e0.25–0.5 ft³\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.25–0.5 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;\"\u003e0.25–0.75 ft³\u003c\/td\u003e\n\u003ctd style=\"padding:8px;text-align:center;\"\u003e0.25–0.75 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 HDS2.3-6?\u003c\/strong\u003e\u003cbr\u003e\nA: Target a mono amplifier rated at \u003cstrong\u003e150–500W RMS\u003c\/strong\u003e at your final impedance. Wire the D2 to 1Ω or 4Ω, or the D4 to 2Ω or 8Ω. A 300W RMS amp 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 HDS2.3-6 need?\u003c\/strong\u003e\u003cbr\u003e\nA: Sealed: \u003cstrong\u003e0.25–0.5 ft³\u003c\/strong\u003e for tight, accurate bass. Ported: \u003cstrong\u003e0.25–0.75 ft³\u003c\/strong\u003e tuned to 35–45 Hz for more output and extension. This driver is well-suited for compact under-seat or custom enclosures.\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 HDS2.3-6 is primarily a \u003cstrong\u003edaily SQL driver\u003c\/strong\u003e — optimized for sound quality and reliable output at 500W RMS. It's not a dedicated SPL competition sub, but it will outperform most drivers in its class for everyday listening and moderate SQL builds.\u003c\/p\u003e","brand":"SoundQubed","offers":[{"title":"Dual 2 Ohm","offer_id":43672735350851,"sku":null,"price":159.95,"currency_code":"USD","in_stock":true},{"title":"Dual 4 Ohm","offer_id":43672735383619,"sku":null,"price":159.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/9575\/7123\/files\/SoundqubedHDS2.36.5insubwooferfront.png?v=1786717386","url":"https:\/\/www.trinitycaraudio.com\/products\/soundqubed-hds2-3-series-6-5-subwoofer-2-5-dvc-500-watts-rms-d2-d4","provider":"Trinity Car Audio","version":"1.0","type":"link"}