{"product_id":"quest-qm600si-professional-dual-15-inch-passive-subwoofer","title":"Quest QM600Si Professional 15‑Inch Passive Subwoofer | 600W RMS","description":"\u003cp data-start=\"85\" data-end=\"608\"\u003eThe QUEST QM600Si is a professional high-output dual 15-inch passive subwoofer engineered for live sound reinforcement, portable PA systems, touring productions, entertainment venues, houses of worship, DJs, and high-performance commercial audio applications. Designed to deliver deep, powerful, and controlled low-frequency reinforcement, the QM600Si combines high SPL capability, excellent transient response, and rugged professional construction in a versatile subwoofer system suitable for demanding sound environments.\u003c\/p\u003e\n\u003cp data-start=\"610\" data-end=\"1080\"\u003eFeaturing dual high-excursion 15-inch low-frequency drivers housed within an acoustically optimized bass reflex enclosure, the QM600Si provides impactful low-frequency extension, tight bass reproduction, and impressive output performance for live music, DJ systems, and professional sound reinforcement applications. Its optimized cabinet design ensures efficient bass loading and controlled low-frequency response suitable for both portable and installed sound systems.\u003c\/p\u003e\n\u003cp data-start=\"1082\" data-end=\"1434\"\u003eBuilt with durable professional-grade construction, the QM600Si is engineered to withstand demanding touring and live production environments while maintaining reliable long-term performance. The enclosure integrates seamlessly with QUEST full-range loudspeaker systems, creating powerful and balanced PA systems for medium to large-scale applications.\u003c\/p\u003e\n\u003cp data-start=\"1436\" data-end=\"1795\"\u003ePerformance Highlights:\u003cbr data-start=\"1459\" data-end=\"1462\"\u003e• Professional dual 15-inch passive subwoofer system\u003cbr data-start=\"1514\" data-end=\"1517\"\u003e• Powerful low-frequency reinforcement with high SPL capability\u003cbr data-start=\"1580\" data-end=\"1583\"\u003e• Bass reflex enclosure optimized for tight and musical bass response\u003cbr data-start=\"1652\" data-end=\"1655\"\u003e• Suitable for live sound, DJ systems, and touring applications\u003cbr data-start=\"1718\" data-end=\"1721\"\u003e• Rugged professional construction for demanding real-world environments\u003c\/p\u003e\n\u003ch2 data-section-id=\"1071k5m\" data-start=\"1797\" data-end=\"1831\"\u003eWhy You Should Buy This Product\u003c\/h2\u003e\n\u003cp data-start=\"1833\" data-end=\"2202\"\u003e• ⭐ Dual 15-inch drivers deliver powerful and impactful bass performance\u003cbr data-start=\"1905\" data-end=\"1908\"\u003e• ⭐ High-output capability ideal for live events and DJ applications\u003cbr data-start=\"1976\" data-end=\"1979\"\u003e• ⭐ Tight and controlled low-frequency reproduction for professional sound systems\u003cbr data-start=\"2061\" data-end=\"2064\"\u003e• ⭐ Integrates seamlessly with QUEST full-range loudspeaker systems\u003cbr data-start=\"2131\" data-end=\"2134\"\u003e• Durable touring-grade construction built for demanding operation\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"2204\" data-end=\"2219\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"2221\" data-end=\"2662\"\u003e• Dual 15-inch high-excursion low-frequency drivers\u003cbr data-start=\"2272\" data-end=\"2275\"\u003e• Passive bass reflex subwoofer design\u003cbr data-start=\"2313\" data-end=\"2316\"\u003e• High SPL capability for professional reinforcement systems\u003cbr data-start=\"2376\" data-end=\"2379\"\u003e• Optimized enclosure for deep and controlled bass response\u003cbr data-start=\"2438\" data-end=\"2441\"\u003e• Suitable for portable PA and installed sound applications\u003cbr data-start=\"2500\" data-end=\"2503\"\u003e• Durable professional-grade cabinet construction\u003cbr data-start=\"2552\" data-end=\"2555\"\u003e• Professional speaker connectivity\u003cbr data-start=\"2590\" data-end=\"2593\"\u003e• Flexible deployment for touring and commercial audio environments\u003c\/p\u003e\n\u003ch2 data-section-id=\"1cgu054\" data-start=\"2664\" data-end=\"2691\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ch3 data-section-id=\"1b952b4\" data-start=\"2693\" data-end=\"2704\"\u003eGeneral\u003c\/h3\u003e\n\u003cp data-start=\"2706\" data-end=\"2777\"\u003e• Product Type: Passive Subwoofer\u003cbr data-start=\"2739\" data-end=\"2742\"\u003e• Brand: QUEST\u003cbr data-start=\"2756\" data-end=\"2759\"\u003e• Model: QM600Si\u003c\/p\u003e\n\u003ch3 data-section-id=\"jt44pa\" data-start=\"2779\" data-end=\"2802\"\u003eAudio \u0026amp; Performance\u003c\/h3\u003e\n\u003cp data-start=\"2804\" data-end=\"2932\"\u003e• Frequency Range (-10 dB): —\u003cbr data-start=\"2833\" data-end=\"2836\"\u003e• Frequency Response (±3 dB): —\u003cbr data-start=\"2867\" data-end=\"2870\"\u003e• Sensitivity (dB): —\u003cbr data-start=\"2891\" data-end=\"2894\"\u003e• Maximum SPL (continuous \/ peak): —\u003c\/p\u003e\n\u003ch3 data-section-id=\"l1oapi\" data-start=\"2934\" data-end=\"2952\"\u003ePower Handling\u003c\/h3\u003e\n\u003cp data-start=\"2954\" data-end=\"3002\"\u003e• Power Handling: —\u003cbr data-start=\"2973\" data-end=\"2976\"\u003e• Peak Power Handling: —\u003c\/p\u003e\n\u003ch3 data-section-id=\"d7gdns\" data-start=\"3004\" data-end=\"3016\"\u003eCoverage\u003c\/h3\u003e\n\u003cp data-start=\"3018\" data-end=\"3054\"\u003e• Coverage pattern: Not Applicable\u003c\/p\u003e\n\u003ch3 data-section-id=\"1lx9lq2\" data-start=\"3056\" data-end=\"3070\"\u003eComponents\u003c\/h3\u003e\n\u003cp data-start=\"3072\" data-end=\"3223\"\u003e• LF driver: 2 × 15” high-excursion low-frequency drivers\u003cbr data-start=\"3129\" data-end=\"3132\"\u003e• HF driver: None\u003cbr data-start=\"3149\" data-end=\"3152\"\u003e• Crossover type: Passive \/ External DSP recommended\u003cbr data-start=\"3204\" data-end=\"3207\"\u003e• Impedance: —\u003c\/p\u003e\n\u003ch3 data-section-id=\"v033e1\" data-start=\"3225\" data-end=\"3252\"\u003ePhysical \u0026amp; Installation\u003c\/h3\u003e\n\u003cp data-start=\"3254\" data-end=\"3387\"\u003e• Enclosure material: —\u003cbr data-start=\"3277\" data-end=\"3280\"\u003e• Finish: Black\u003cbr data-start=\"3295\" data-end=\"3298\"\u003e• Mounting points: Stackable cabinet design\u003cbr data-start=\"3341\" data-end=\"3344\"\u003e• Dimensions (H × W × D): —\u003cbr data-start=\"3371\" data-end=\"3374\"\u003e• Weight: —\u003c\/p\u003e\n\u003ch3 data-section-id=\"k34kmu\" data-start=\"3389\" data-end=\"3406\"\u003eConfiguration\u003c\/h3\u003e\n\u003cp data-start=\"3408\" data-end=\"3560\"\u003e• Speaker Type: Passive Subwoofer\u003cbr data-start=\"3441\" data-end=\"3444\"\u003e• System Type: Dual 15-Inch Bass Reflex Subwoofer\u003cbr data-start=\"3493\" data-end=\"3496\"\u003e• Built-in Amplifier: No\u003cbr data-start=\"3520\" data-end=\"3523\"\u003e• Transformer: No\u003cbr data-start=\"3540\" data-end=\"3543\"\u003e• Mode: Passive\u003c\/p\u003e\n\u003ch3 data-section-id=\"v6ee9q\" data-start=\"3562\" data-end=\"3574\"\u003eIncluded\u003c\/h3\u003e\n\u003cp data-start=\"3576\" data-end=\"3618\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• 1 × Passive Subwoofer\u003cbr data-start=\"3599\" data-end=\"3602\"\u003e• 1 × User Guide\u003c\/p\u003e","brand":"Quest","offers":[{"title":"Default Title","offer_id":52962696593727,"sku":"QM600SI","price":113100.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0014\/5942\/1272\/files\/quest-qm600asi-speaker-1000x1000.webp?v=1778594313","url":"https:\/\/audiomaxx.in\/products\/quest-qm600si-professional-dual-15-inch-passive-subwoofer","provider":"Audiomaxx India","version":"1.0","type":"link"}