{"product_id":"sundown-audio-m-series-12-sub-and-box-combo-2000w-rms","title":"Sundown Audio M-Series 12” Sub \u0026 Box Combo – 2000W RMS","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch2\u003eSundown Audio M-Series 12” Subwoofer \u0026amp; Custom Birch Box Combo – 2000W RMS \/ 4000W Peak (Dual 1 Ω or Dual 2 Ω)\u003c\/h2\u003e\n\u003ch3\u003eUnmatched Bass Performance — Built for Power and Precision\u003c\/h3\u003e\n\u003cp\u003eExperience true low-frequency dominance with the \u003cstrong\u003eSundown Audio M-Series 12” Subwoofer \u0026amp; Box Combo\u003c\/strong\u003e, engineered for clean, deep, and hard-hitting bass. Rated at \u003cstrong\u003e2000 Watts RMS \/ 4000 Watts Peak\u003c\/strong\u003e, this setup blends the precision engineering of Sundown’s new M-Series subwoofer with a handcrafted \u003cstrong\u003eBasshead Supply branded birch enclosure\u003c\/strong\u003e — built and tuned specifically to extract every ounce of performance.\u003c\/p\u003e\n\u003ch3\u003eSubwoofer Highlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Handling:\u003c\/strong\u003e 2000 Watts RMS \/ 4000 Watts Peak\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImpedance Options:\u003c\/strong\u003e Dual 1 Ω or Dual 2 Ω voice coils\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Mega Roll Surround + Patented Mega Frame (U.S. Patent D691596–D741841)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Structure:\u003c\/strong\u003e Quad-Stack 200 mm (7.87”) magnet with 88 mm stack height\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoice Coil:\u003c\/strong\u003e 3″ 4-layer round-wire aluminum on thick aluminum former\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcursion:\u003c\/strong\u003e 35 mm one-way linear travel (4.68″ peak-to-peak)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackplate:\u003c\/strong\u003e Laser-etched all-black design with custom M-Series boot\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling System:\u003c\/strong\u003e High-velocity pole vent + vented magnetic gap + cast-aluminum frame venting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTop Plate:\u003c\/strong\u003e 20 mm thick for maximum magnetic efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDistortion Control:\u003c\/strong\u003e Inner-diameter aluminum shorting ring for ultra-low inductive distortion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBuilt for serious daily drivers and demo-wall systems alike, the \u003cstrong\u003eM-Series\u003c\/strong\u003e offers the same design DNA found in Sundown’s legendary X, Z, and NS platforms — but at a far more accessible price.\u003c\/p\u003e\n\u003ch3\u003eEnclosure Specifications – Basshead Supply Branded Series\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Internal Volume:\u003c\/strong\u003e 2.5 cu ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning Frequency:\u003c\/strong\u003e 31 Hz (for deep musical bass with daily drivability)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Area:\u003c\/strong\u003e 35 sq in (14″ × 2.5″ slot port)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubwoofer Cutout:\u003c\/strong\u003e 11.01″\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Full 1″ thick Baltic Birch (17-ply veneer — no MDF)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Carbon gray stain with polyurethane protective topcoat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAssembly:\u003c\/strong\u003e Seamless screwless design glued with Titebond III\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring:\u003c\/strong\u003e Prewired 10-gauge OFC speaker lead\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminals:\u003c\/strong\u003e Recessed satin-nickel brass binding posts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Dimensions:\u003c\/strong\u003e 16″ H × 27.375″ W × 19″ D\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHand-Built in the USA for True Bassheads\u003c\/h3\u003e\n\u003cp\u003eEvery enclosure in the \u003cstrong\u003eBasshead Supply Branded Series\u003c\/strong\u003e is handcrafted in the USA using premium Baltic Birch and precision tuning to deliver unmatched sound quality, output, and strength. Each box is custom cut, tuned, and finished to order (2–3 week lead time).\u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Combo from JS Ultimate Sounds?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOfficial \u003cstrong\u003eSundown Audio Authorized Online Dealer 2025\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eGuaranteed genuine products — no clones, no fakes\u003c\/li\u003e\n\u003cli\u003eProfessionally matched sub + box combo for maximum output\u003c\/li\u003e\n\u003cli\u003eBuilt-to-order craftsmanship with unbeatable value\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTake your system to the next level with the \u003cstrong\u003eSundown Audio M-Series 12″ Combo\u003c\/strong\u003e — engineered for brutal low-end, clean power handling, and proven Sundown reliability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- SEO Metadata --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- Suggested URL Handle: \/products\/sundown-audio-m-series-12-subwoofer-and-box-combo-2000w-rms --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!-- Meta Description: Discover the Sundown Audio M-Series 12″ Sub \u0026 Box Combo — 2000 W RMS, 4000 W Peak power, Mega Roll surround, quad-stack motor, and hand-built Basshead Supply birch enclosure tuned for 31 Hz performance. Shop JS Ultimate Sounds — Authorized Sundown Dealer 2025. --\u003e","brand":"Sundown Audio","offers":[{"title":"Dual 1 Ohm","offer_id":66741609857069,"sku":null,"price":1099.99,"currency_code":"USD","in_stock":true},{"title":"Dual 2 Ohm","offer_id":66741609889837,"sku":null,"price":1099.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0755\/8096\/4909\/files\/Sundown_Audio_M-Series_12_Sub_Box_Combo_2000W_RMS.webp?v=1782197077","url":"https:\/\/www.jsultimatesounds.com\/products\/sundown-audio-m-series-12-sub-and-box-combo-2000w-rms","provider":"JS Ultimate Sounds","version":"1.0","type":"link"}