{"product_id":"quad-electrostatic-loudspeakers","title":"QUAD ESL-X Electrostatic loudspeakers","description":"\u003cp\u003eThese are a very old friend born again in this most recent iteration of Peter Walker’s original transducer technology \u003c\/p\u003e\n\u003cp\u003ehttps:\/\/quad-hifi.co.uk\/pages\/our-story\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe ESL-X concept began in 2019 as part of an intensive review of the QUAD Electrostatic \u003c\/span\u003e\u003cspan\u003emanufacturing facility—a suite dedicated solely to the production of QUAD ESL loudspeakers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnder the expert leadership of Paul McConville, (a gentleman recognised as the world’s foremost \u003c\/span\u003e\u003cspan\u003eauthority in QUAD ESL engineering, with 40 years of experience), every aspect of the original \u003c\/span\u003e\u003cspan\u003edesign underwent a comprehensive evaluation and meticulous refinement.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis approach encompassed a thorough analysis of every process, step, technique, material, tool, \u003c\/span\u003e\u003cspan\u003eand jig employed in the construction of a QUAD ESL, with the aim of improving the quality and \u003c\/span\u003e\u003cspan\u003eprecision of the electrostatic loudspeaker assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLeveraging techniques such as advanced laser-precision metrology, QUAD undertook an \u003c\/span\u003e\u003cspan\u003eexhaustive review of the foundation of the ESL design. Systematic enhancements were \u003c\/span\u003e\u003cspan\u003eimplemented in the processes of spraying, etching, tensioning, and assembly to ensure peak \u003c\/span\u003e\u003cspan\u003eperformance. Rigorous upgrades were applied to implement both passive and active \u003c\/span\u003e\u003cspan\u003ecomponents, enhancing the overall system integrity of the then-current ESL2912 and 2812 \u003c\/span\u003e\u003cspan\u003emodels.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe team of QUAD engineers considered the results of this lengthy and time-\u003c\/span\u003e\u003cspan\u003econsuming self-appointed audit so significant that they deemed it worthy of a new model in \u003c\/span\u003e\u003cspan\u003ethe lineage of the ESL programme.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt is widely accepted that enhancing an ESL is fundamentally an exercise in building upon \u003c\/span\u003e\u003cspan\u003eexisting frameworks through incremental improvements rather than pursuing radical \u003c\/span\u003e\u003cspan\u003einnovations. Consequently, QUAD did not require a complete overhaul of established methods.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNonetheless, these incremental advancements have now culminated in a significant \u003c\/span\u003e\u003cspan\u003etransformation of the 2912 and 2812 models into what is now known as ESL X.\u003c\/span\u003e\u003c\/p\u003e\n\u003cheader class=\"SectionHeader SectionHeader--center\"\u003e\n\u003ch2 class=\"SectionHeader__Heading Heading u-h1\"\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n\u003c\/header\u003e\n\u003cdiv class=\"Liquid tech-specs\"\u003e\n\u003ctable border=\"0\"\u003e\n\u003ccolgroup\u003e\n\u003ccol\u003e\n\u003ccol\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl69\"\u003eFormat\u003c\/td\u003e\n\u003ctd class=\"xl68\"\u003eFloor standing dipole with 3° fixed tilt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl69\"\u003eType\u003c\/td\u003e\n\u003ctd class=\"xl68\"\u003eMultiple electrostatic drive membranes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl72\"\u003ePoint Source Time Delay\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003eProgressive concentric rings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl72\"\u003eChassis Structure\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003eHeavy duty composite aluminium \/ steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl72\"\u003ePanel Elements\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl72\"\u003eMaximum Output\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003e2 N\/m\u003csup\u003e2\u003c\/sup\u003e at 2m on axis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl72\"\u003eSensitivity\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003e1.5 mbar per volt referred to 1m (86dB \/ 2.83V RMS equivalent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl72\"\u003eNominal Impedance\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003e8 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl72\"\u003eImpedance Variation\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003e4 – 20 Ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl73\"\u003eMax Continuous Input Voltage\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003e10V (RMS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl73\"\u003eProgram Peak for Undistorted Output\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003e40V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl72\"\u003ePermitted Peak Input\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003e55V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl72\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003e\n\u003cp\u003e32Hz – 21kHz (–6dB)\u003c\/p\u003e\n\u003cp\u003e28Hz – 23kHz (useable)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl72\"\u003eDirectivity Index\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003eSee Polar Diagrams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl72\"\u003eDistortion (100dB @ 1m)\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003e\n\u003cp\u003eAbove 1000Hz: \u0026lt; 0.15%\u003c\/p\u003e\n\u003cp\u003eAbove 100Hz: \u0026lt; 0.5%\u003c\/p\u003e\n\u003cp\u003eAbove 50Hz: \u0026lt; 1.0%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl72\"\u003eAC Input\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003e220 – 240V \/ 100 – 120V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl72\"\u003ePower Fuse\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003e\n\u003cp\u003e100mA anti-surge (200 – 240V)\u003c\/p\u003e\n\u003cp\u003e200mA anti-surge (100 – 120V)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl72\"\u003ePower Consumption\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003e8 Watts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl69\"\u003eDimensions (H x W x D) in mm\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003e1470 x 690 x 380 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"xl69\"\u003eWeight\u003c\/td\u003e\n\u003ctd class=\"xl75\"\u003e44 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Quad","offers":[{"title":"Default Title","offer_id":46324916125846,"sku":null,"price":29995.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0438\/2307\/1382\/files\/DD05E7C0-5EAF-400B-BBA5-16EDB8A99EFC.jpg?v=1775470850","url":"https:\/\/www.carltonaudiovisual.com.au\/products\/quad-electrostatic-loudspeakers","provider":"Carlton Audio Visual","version":"1.0","type":"link"}