{"product_id":"quest-qx41500-professional-4-1500w-class-d-2ru-installation-power-amplifier-with-auto-load-sensing-70v-100v-dante™-expansion-support","title":"Quest QX41500 Professional 4×1500W Class-D 2RU Installation Power Amplifier with Auto Load Sensing, 70V\/100V \u0026 Dante™ Expansion Support","description":"\u003cp data-start=\"163\" data-end=\"804\"\u003eThe Quest QX41500 is a professional high-power 4-channel Class-D installation power amplifier engineered for large-scale commercial audio systems, stadiums, convention centers, hospitality venues, houses of worship, educational campuses, entertainment venues, and enterprise-grade AV installations requiring extremely high output power, flexible speaker compatibility, and reliable continuous-duty operation. As part of Quest Engineering’s flagship QX Rackmount Series, the QX41500 combines advanced Class-D amplifier technology, intelligent load sensing, and installation-focused DSP functionality within a compact 2RU professional chassis.\u003c\/p\u003e\n\u003cp data-start=\"806\" data-end=\"1315\"\u003eDesigned for demanding distributed audio and high-performance sound reinforcement applications, the QX41500 delivers 4 × 1500W output power at 4Ω with bridgeable channel operation capable of extremely high-power mono configurations for subwoofers and large-format loudspeaker systems. The amplifier supports both low-impedance (4–16Ω) and high-impedance (70V\/100V) speaker systems through Quest’s Auto Load Sensing technology, eliminating the need for manual mode switching and simplifying system integration.\u003c\/p\u003e\n\u003cp data-start=\"1317\" data-end=\"1775\"\u003eThe amplifier utilizes Quest’s UMAC™ full-bandwidth PWM Class-D modulation technology for ultra-efficient performance, low distortion, and exceptional dynamic response while minimizing power consumption and thermal buildup. Independent per-channel controls include selectable high-pass filter, low-pass filter, limiter, standby mode, and bridge functionality, providing integrators with flexible loudspeaker optimization directly from the amplifier platform.\u003c\/p\u003e\n\u003cp data-start=\"1777\" data-end=\"2245\"\u003eBuilt for mission-critical professional operation, the QX41500 incorporates comprehensive protection systems including thermal protection, overload protection, DC fault protection, HF protection, and under-voltage monitoring to maintain stable operation under extreme continuous-use conditions. The integrated UREC™ universal switch-mode power supply with Power Factor Correction (PFC) further enhances efficiency and operational reliability in large-scale AV systems.\u003c\/p\u003e\n\u003cp data-start=\"2247\" data-end=\"2573\"\u003eThe amplifier also supports optional Dante™ \/ AES67 network audio expansion, enabling seamless integration into modern networked AV infrastructures and enterprise audio ecosystems. Its compact high-density 2RU design maximizes rack efficiency while delivering exceptional output capability for large distributed audio systems.\u003c\/p\u003e\n\u003ch3 data-section-id=\"o3tx9j\" data-start=\"2575\" data-end=\"2602\"\u003ePerformance Highlights:\u003c\/h3\u003e\n\u003cp data-start=\"2603\" data-end=\"2919\"\u003e• Professional 4-channel high-power Class-D installation amplifier\u003cbr data-start=\"2669\" data-end=\"2672\"\u003e• 4 × 1500W output power for large-scale audio systems\u003cbr data-start=\"2726\" data-end=\"2729\"\u003e• Auto Load Sensing supports 4–16Ω, 70V \u0026amp; 100V operation\u003cbr data-start=\"2785\" data-end=\"2788\"\u003e• Bridgeable channel operation for ultra-high-power applications\u003cbr data-start=\"2852\" data-end=\"2855\"\u003e• Dante™ \/ AES67 expansion capability for networked AV systems\u003c\/p\u003e\n\u003ch2 data-section-id=\"1071k5m\" data-start=\"2921\" data-end=\"2955\"\u003eWhy You Should Buy This Product\u003c\/h2\u003e\n\u003cp data-start=\"2957\" data-end=\"3358\"\u003e• ⭐ Extremely high-output 4-channel amplifier for enterprise-grade installations\u003cbr data-start=\"3037\" data-end=\"3040\"\u003e• ⭐ Flexible low-impedance and 70V\/100V compatibility simplifies deployment\u003cbr data-start=\"3115\" data-end=\"3118\"\u003e• ⭐ Compact 2RU chassis maximizes rack efficiency despite massive output power\u003cbr data-start=\"3196\" data-end=\"3199\"\u003e• ⭐ Advanced protection systems ensure reliable continuous-duty operation\u003cbr data-start=\"3272\" data-end=\"3275\"\u003e• ⭐ Ideal for stadiums, auditoriums, hospitality, and large commercial AV systems\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"3360\" data-end=\"3375\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"3377\" data-end=\"3939\"\u003e• 4-channel professional installation power amplifier\u003cbr data-start=\"3430\" data-end=\"3433\"\u003e• 4 × 1500W high-output power configuration\u003cbr data-start=\"3476\" data-end=\"3479\"\u003e• UMAC™ Class-D full-bandwidth PWM amplification\u003cbr data-start=\"3527\" data-end=\"3530\"\u003e• Auto Load Sensing (4–16Ω \/ 70V \/ 100V)\u003cbr data-start=\"3570\" data-end=\"3573\"\u003e• Bridge-mono operation capability\u003cbr data-start=\"3607\" data-end=\"3610\"\u003e• Independent HPF, LPF, limiter \u0026amp; standby controls per channel\u003cbr data-start=\"3672\" data-end=\"3675\"\u003e• Dante™ \/ AES67 expansion support\u003cbr data-start=\"3709\" data-end=\"3712\"\u003e• UREC™ switch-mode power supply with PFC\u003cbr data-start=\"3753\" data-end=\"3756\"\u003e• DynamiQ Bass Technology®\u003cbr data-start=\"3782\" data-end=\"3785\"\u003e• Professional Euroblock and SpeakON connectivity\u003cbr data-start=\"3834\" data-end=\"3837\"\u003e• Temperature-dependent intelligent cooling system\u003cbr data-start=\"3887\" data-end=\"3890\"\u003e• Designed, engineered \u0026amp; assembled in Australia\u003c\/p\u003e\n\u003ch1 data-section-id=\"zjxypn\" data-start=\"3941\" data-end=\"3967\"\u003eTechnical Specifications\u003c\/h1\u003e\n\u003ch2 data-section-id=\"1ykprhv\" data-start=\"3969\" data-end=\"3979\"\u003eGeneral\u003c\/h2\u003e\n\u003cp data-start=\"3981\" data-end=\"4077\"\u003e• Product Type: Multi-Channel Installation Power Amplifier\u003cbr data-start=\"4039\" data-end=\"4042\"\u003e• Brand: Quest\u003cbr data-start=\"4056\" data-end=\"4059\"\u003e• Model: QX41500\u003c\/p\u003e\n\u003ch2 data-section-id=\"1khwwct\" data-start=\"4079\" data-end=\"4101\"\u003eAudio \u0026amp; Performance\u003c\/h2\u003e\n\u003cp data-start=\"4103\" data-end=\"4324\"\u003e• Amplifier Channels: 4 Channels\u003cbr data-start=\"4135\" data-end=\"4138\"\u003e• Output Power @ 4Ω: 4 × 1500W\u003cbr data-start=\"4168\" data-end=\"4171\"\u003e• Amplifier Class: Class-D\u003cbr data-start=\"4197\" data-end=\"4200\"\u003e• Frequency Response: 20 Hz – 20 kHz\u003cbr data-start=\"4236\" data-end=\"4239\"\u003e• Dynamic Range: —\u003cbr data-start=\"4257\" data-end=\"4260\"\u003e• Total Harmonic Distortion: Ultra-Low Distortion UMAC™ Design\u003c\/p\u003e\n\u003ch2 data-section-id=\"zfpcnp\" data-start=\"4326\" data-end=\"4343\"\u003ePower Handling\u003c\/h2\u003e\n\u003cp data-start=\"4345\" data-end=\"4468\"\u003e• Low-Impedance Operation: 4–16Ω\u003cbr data-start=\"4377\" data-end=\"4380\"\u003e• High-Impedance Operation: 70V \/ 100V\u003cbr data-start=\"4418\" data-end=\"4421\"\u003e• Bridge Mode: Yes\u003cbr data-start=\"4439\" data-end=\"4442\"\u003e• Auto Load Sensing: Yes\u003c\/p\u003e\n\u003ch2 data-section-id=\"18e5g2k\" data-start=\"4470\" data-end=\"4494\"\u003eProcessing \u0026amp; Controls\u003c\/h2\u003e\n\u003cp data-start=\"4496\" data-end=\"4654\"\u003e• High Pass Filter: Selectable HPF\u003cbr data-start=\"4530\" data-end=\"4533\"\u003e• Low Pass Filter: Selectable LPF\u003cbr data-start=\"4566\" data-end=\"4569\"\u003e• Input Limiter: Selectable\u003cbr data-start=\"4596\" data-end=\"4599\"\u003e• Standby Mode: Per Channel\u003cbr data-start=\"4626\" data-end=\"4629\"\u003e• Bridge Mono Mode: Yes\u003c\/p\u003e\n\u003ch2 data-section-id=\"ujm01s\" data-start=\"4656\" data-end=\"4671\"\u003eConnectivity\u003c\/h2\u003e\n\u003cp data-start=\"4673\" data-end=\"4828\"\u003e• Audio Inputs: Balanced Euroblock Inputs\u003cbr data-start=\"4714\" data-end=\"4717\"\u003e• Speaker Outputs: SpeakON Outputs\u003cbr data-start=\"4751\" data-end=\"4754\"\u003e• Network Audio Expansion: Dante™ \/ AES67 Optional\u003cbr data-start=\"4804\" data-end=\"4807\"\u003e• Link Outputs: Yes\u003c\/p\u003e\n\u003ch2 data-section-id=\"1u06rja\" data-start=\"4830\" data-end=\"4843\"\u003eProtection\u003c\/h2\u003e\n\u003cp data-start=\"4845\" data-end=\"5015\"\u003e• Thermal Protection: Yes\u003cbr data-start=\"4870\" data-end=\"4873\"\u003e• Overload Protection: Yes\u003cbr data-start=\"4899\" data-end=\"4902\"\u003e• DC Protection: Yes\u003cbr data-start=\"4922\" data-end=\"4925\"\u003e• Under Voltage Protection: Yes\u003cbr data-start=\"4956\" data-end=\"4959\"\u003e• Short Circuit Protection: Yes\u003cbr data-start=\"4990\" data-end=\"4993\"\u003e• HF Protection: Yes\u003c\/p\u003e\n\u003ch2 data-section-id=\"16n806i\" data-start=\"5017\" data-end=\"5043\"\u003ePhysical \u0026amp; Installation\u003c\/h2\u003e\n\u003cp data-start=\"5045\" data-end=\"5198\"\u003e• Rack Space: 2RU\u003cbr data-start=\"5062\" data-end=\"5065\"\u003e• Chassis Construction: Metal\u003cbr data-start=\"5094\" data-end=\"5097\"\u003e• Finish: Black\u003cbr data-start=\"5112\" data-end=\"5115\"\u003e• Cooling System: Temperature-Dependent Fan Cooling\u003cbr data-start=\"5166\" data-end=\"5169\"\u003e• Mounting Type: Rack Mount\u003c\/p\u003e\n\u003ch2 data-section-id=\"1kmusxh\" data-start=\"5200\" data-end=\"5216\"\u003eConfiguration\u003c\/h2\u003e\n\u003cp data-start=\"5218\" data-end=\"5487\"\u003e• Amplifier Type: High-Power Installation Amplifier\u003cbr data-start=\"5269\" data-end=\"5272\"\u003e• System Type: Commercial Distributed Audio Amplifier\u003cbr data-start=\"5325\" data-end=\"5328\"\u003e• Built-in DSP: HPF \/ LPF \/ Limiter Processing\u003cbr data-start=\"5374\" data-end=\"5377\"\u003e• Transformer: Integrated Hi-Z Operation Support\u003cbr data-start=\"5425\" data-end=\"5428\"\u003e• Mode: Low \u0026amp; High Impedance Professional Audio Operation\u003c\/p\u003e\n\u003ch2 data-section-id=\"ntyisd\" data-start=\"5489\" data-end=\"5500\"\u003eIncluded\u003c\/h2\u003e\n\u003cp data-start=\"5502\" data-end=\"5599\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• 1 × 4-Channel Installation Power Amplifier\u003cbr data-start=\"5546\" data-end=\"5549\"\u003e• 1 × Mains Power Cable\u003cbr data-start=\"5572\" data-end=\"5575\"\u003e• 1 × User Documentation\u003c\/p\u003e","brand":"Quest","offers":[{"title":"Default Title","offer_id":52966304153919,"sku":"Quest QX41500","price":417300.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0014\/5942\/1272\/files\/QX41500_01.webp?v=1778677264","url":"https:\/\/audiomaxx.in\/products\/quest-qx41500-professional-4-1500w-class-d-2ru-installation-power-amplifier-with-auto-load-sensing-70v-100v-dante%e2%84%a2-expansion-support","provider":"Audiomaxx India","version":"1.0","type":"link"}