{"product_id":"quest-qm4-professional-15-inch-active-two-way-bass-reflex-loudspeaker","title":"“Quest QM4 Lightweight 12‑Inch Active Loudspeaker | 400W RMS Portable Power","description":"\u003cp data-start=\"97\" data-end=\"573\"\u003eThe QUEST QM4 is a high-performance 15-inch active two-way bass reflex loudspeaker engineered for portable PA systems, live sound reinforcement, DJs, musicians, corporate AV applications, houses of worship, and mobile entertainment environments. Designed to deliver powerful full-range performance with exceptional reliability and portability, the QM4 combines strong bass response, smooth vocal clarity, and professional-grade durability in a versatile active speaker system.\u003c\/p\u003e\n\u003cp data-start=\"575\" data-end=\"1112\"\u003eAt the core of the QM4 is a high-efficiency 15-inch low-frequency woofer paired with a 34 mm high-frequency compression driver, delivering dynamic full-range sound with excellent speech intelligibility and extended low-frequency performance. QUEST’s Hybridtec amplification technology combines digital low-frequency amplification with analogue high-frequency amplification, providing powerful bass output while maintaining natural and smooth high-frequency reproduction even at higher output levels. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1114\" data-end=\"1583\"\u003eThe integrated active amplifier system delivers 380W RMS power with peak performance up to 470W, enabling the QM4 to achieve impressive output levels up to 127 dB SPL for demanding live sound and portable audio applications. Its 85° × 75° elliptical waveguide ensures wide and even audience coverage while minimizing feedback hotspots, making the QM4 suitable for front-of-house use, stage monitoring, and multi-speaker PA systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1585\" data-end=\"1798\"\u003eConstructed from durable birch plywood and protected by a heavy-duty steel grille, the QM4 is built to withstand demanding professional environments while remaining lightweight enough for easy transport and setup.\u003c\/p\u003e\n\u003cp data-start=\"1800\" data-end=\"2141\"\u003ePerformance Highlights:\u003cbr data-start=\"1823\" data-end=\"1826\"\u003e• Professional 15-inch active two-way loudspeaker system\u003cbr data-start=\"1882\" data-end=\"1885\"\u003e• QUEST Hybridtec amplification for powerful bass and smooth highs\u003cbr data-start=\"1951\" data-end=\"1954\"\u003e• 380W RMS active amplification with 127 dB SPL capability\u003cbr data-start=\"2012\" data-end=\"2015\"\u003e• 85° × 75° elliptical waveguide for even audience coverage\u003cbr data-start=\"2074\" data-end=\"2077\"\u003e• Durable birch plywood enclosure with heavy-duty steel grille\u003c\/p\u003e\n\u003ch2 data-section-id=\"1071k5m\" data-start=\"2143\" data-end=\"2177\"\u003eWhy You Should Buy This Product\u003c\/h2\u003e\n\u003cp data-start=\"2179\" data-end=\"2553\"\u003e• ⭐ Powerful 15-inch woofer delivers deep bass and strong live sound performance\u003cbr data-start=\"2259\" data-end=\"2262\"\u003e• ⭐ Hybridtec amplification provides smooth and natural sound at high output levels\u003cbr data-start=\"2345\" data-end=\"2348\"\u003e• ⭐ Ideal for DJs, musicians, events, and portable PA applications\u003cbr data-start=\"2414\" data-end=\"2417\"\u003e• ⭐ Lightweight and durable design for easy transport and long-term reliability\u003cbr data-start=\"2496\" data-end=\"2499\"\u003e• Flexible operation as FOH speaker or stage monitor\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"2555\" data-end=\"2570\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"2572\" data-end=\"2998\"\u003e• 15-inch high-power low-frequency woofer\u003cbr data-start=\"2613\" data-end=\"2616\"\u003e• 34 mm high-frequency compression driver\u003cbr data-start=\"2657\" data-end=\"2660\"\u003e• Active two-way bass reflex loudspeaker system\u003cbr data-start=\"2707\" data-end=\"2710\"\u003e• QUEST Hybridtec analogue\/digital hybrid amplification\u003cbr data-start=\"2765\" data-end=\"2768\"\u003e• 380W RMS \/ 470W peak amplifier power\u003cbr data-start=\"2806\" data-end=\"2809\"\u003e• 85° × 75° elliptical waveguide dispersion\u003cbr data-start=\"2852\" data-end=\"2855\"\u003e• XLR + ¼” combo input connections\u003cbr data-start=\"2889\" data-end=\"2892\"\u003e• XLR output for signal linking\u003cbr data-start=\"2923\" data-end=\"2926\"\u003e• Heavy-duty birch plywood enclosure\u003cbr data-start=\"2962\" data-end=\"2965\"\u003e• Steel protective front grille\u003c\/p\u003e\n\u003ch2 data-section-id=\"1cgu054\" data-start=\"3000\" data-end=\"3027\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ch3 data-section-id=\"1b952b4\" data-start=\"3029\" data-end=\"3040\"\u003eGeneral\u003c\/h3\u003e\n\u003cp data-start=\"3042\" data-end=\"3118\"\u003e• Product Type: Active Two-Way Loudspeaker\u003cbr data-start=\"3084\" data-end=\"3087\"\u003e• Brand: QUEST\u003cbr data-start=\"3101\" data-end=\"3104\"\u003e• Model: QM4\u003c\/p\u003e\n\u003ch3 data-section-id=\"jt44pa\" data-start=\"3120\" data-end=\"3143\"\u003eAudio \u0026amp; Performance\u003c\/h3\u003e\n\u003cp data-start=\"3145\" data-end=\"3303\"\u003e• Frequency Range (-10 dB): 60 Hz – 20 kHz\u003cbr data-start=\"3187\" data-end=\"3190\"\u003e• Frequency Response (±3 dB): —\u003cbr data-start=\"3221\" data-end=\"3224\"\u003e• Sensitivity (dB): 99 dB SPL\u003cbr data-start=\"3253\" data-end=\"3256\"\u003e• Maximum SPL (continuous \/ peak): 127 dB SPL\u003c\/p\u003e\n\u003ch3 data-section-id=\"l1oapi\" data-start=\"3305\" data-end=\"3323\"\u003ePower Handling\u003c\/h3\u003e\n\u003cp data-start=\"3325\" data-end=\"3432\"\u003e• Built-in Amplifier: Hybridtec Active Amplifier\u003cbr data-start=\"3373\" data-end=\"3376\"\u003e• RMS Power Output: 380 W\u003cbr data-start=\"3401\" data-end=\"3404\"\u003e• Peak Power Output: 470 W\u003c\/p\u003e\n\u003ch3 data-section-id=\"d7gdns\" data-start=\"3434\" data-end=\"3446\"\u003eCoverage\u003c\/h3\u003e\n\u003cp data-start=\"3448\" data-end=\"3479\"\u003e• Coverage pattern: 85° × 75°\u003c\/p\u003e\n\u003ch3 data-section-id=\"1lx9lq2\" data-start=\"3481\" data-end=\"3495\"\u003eComponents\u003c\/h3\u003e\n\u003cp data-start=\"3497\" data-end=\"3637\"\u003e• LF driver: 1 × 15” high-power woofer\u003cbr data-start=\"3535\" data-end=\"3538\"\u003e• HF driver: 1 × 34 mm compression driver\u003cbr data-start=\"3579\" data-end=\"3582\"\u003e• Crossover type: Active\u003cbr data-start=\"3606\" data-end=\"3609\"\u003e• Impedance: Active system\u003c\/p\u003e\n\u003ch3 data-section-id=\"v033e1\" data-start=\"3639\" data-end=\"3666\"\u003ePhysical \u0026amp; Installation\u003c\/h3\u003e\n\u003cp data-start=\"3668\" data-end=\"3833\"\u003e• Enclosure material: Birch plywood\u003cbr data-start=\"3703\" data-end=\"3706\"\u003e• Finish: Black\u003cbr data-start=\"3721\" data-end=\"3724\"\u003e• Mounting points: Pole-mount compatible\u003cbr data-start=\"3764\" data-end=\"3767\"\u003e• Dimensions (H × W × D): 705 × 462 × 440 mm\u003cbr data-start=\"3811\" data-end=\"3814\"\u003e• Weight: 21.5 kg\u003c\/p\u003e\n\u003ch3 data-section-id=\"k34kmu\" data-start=\"3835\" data-end=\"3852\"\u003eConfiguration\u003c\/h3\u003e\n\u003cp data-start=\"3854\" data-end=\"4000\"\u003e• Speaker Type: Active Speaker\u003cbr data-start=\"3884\" data-end=\"3887\"\u003e• System Type: Two-Way Bass Reflex Loudspeaker\u003cbr data-start=\"3933\" data-end=\"3936\"\u003e• Built-in Amplifier: Yes\u003cbr data-start=\"3961\" data-end=\"3964\"\u003e• Transformer: No\u003cbr data-start=\"3981\" data-end=\"3984\"\u003e• Mode: Active\u003c\/p\u003e\n\u003ch3 data-section-id=\"v6ee9q\" data-start=\"4002\" data-end=\"4014\"\u003eIncluded\u003c\/h3\u003e\n\u003cp data-start=\"4016\" data-end=\"4081\"\u003e• 1 × Active Loudspeaker\u003cbr data-start=\"4040\" data-end=\"4043\"\u003e• 1 × Power Cable\u003cbr data-start=\"4060\" data-end=\"4063\"\u003e• 1 × User Guide\u003c\/p\u003e","brand":"Quest","offers":[{"title":"Default Title","offer_id":52962656485695,"sku":"QUEST QM4","price":86700.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0014\/5942\/1272\/files\/QM4-01_tn.jpg?v=1778592854","url":"https:\/\/audiomaxx.in\/products\/quest-qm4-professional-15-inch-active-two-way-bass-reflex-loudspeaker","provider":"Audiomaxx India","version":"1.0","type":"link"}