{"product_id":"quad-esl-63-delay-line-pcb-assembly-electrostatic-speaker-spares-repairs","title":"Quad ESL-63 Delay Line PCB Assembly Electrostatic Speaker Spares Repairs","description":"\u003cp\u003eQuad ESL-63 delay line subassembly, removed from parent speaker. Sold as spares\/repairs.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul class=\"spec-list\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAudio Inputs:\u003c\/strong\u003e 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnectivity:\u003c\/strong\u003e 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Brand:\u003c\/strong\u003e Quad\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eYear Manufactured:\u003c\/strong\u003e 1980s\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDelay-Line Architecture:\u003c\/strong\u003e uentially via analogue LC delay lines; ~24 µs delay per s\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Impedance:\u003c\/strong\u003e 8 ohms (6.2 ohms minimum)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensitivity:\u003c\/strong\u003e 86 dB SPL for 2.83 V rms at 1 metre\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Handling:\u003c\/strong\u003e 100 W \/ 10 V rms \/ 40 V peak maximum signal input\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTransducer Type:\u003c\/strong\u003e Full-range electrostatic (dipole)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Impedance:\u003c\/strong\u003e 8 ohms (6.2 ohms minimum)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSensitivity:\u003c\/strong\u003e 86 dB SPL for 2.83 V rms at 1 metre\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Handling:\u003c\/strong\u003e 100 W \/ 10 V rms \/ 40 V peak maximum signal input\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDelay-Line Architecture:\u003c\/strong\u003e 8 concentric annular stator rings fed sequentially via analogue LC delay lines; ~24 µs delay per stage, ~168 µs total — simulates a point source ~30 cm behind the panel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePer-Stage \/ Total Delay:\u003c\/strong\u003e ~24 µs per stage; ~168 µs total across 7 stages\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiaphragm Material:\u003c\/strong\u003e Melinex (biaxially-oriented polyethylene terephthalate \/ Mylar-type) ultra-thin film\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRadiation Pattern:\u003c\/strong\u003e Dipole (full-range, open-backed panel)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions (H × W × D):\u003c\/strong\u003e 36\" H × 26\" W × 6\" D (base depth 10\")\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Chorlton Analogue","offers":[{"title":"Default Title","offer_id":58186208182659,"sku":"43A","price":46.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1610\/2401\/files\/12_a01616a4-1f0f-4a2d-84c7-e571b53dae68.jpg?v=1780585402","url":"https:\/\/chorltonanalogue.com\/products\/quad-esl-63-delay-line-pcb-assembly-electrostatic-speaker-spares-repairs","provider":"Chorlton Analogue","version":"1.0","type":"link"}