{"product_id":"optimus-pro-lx5-bookshelf-speakers-woofers-refoamed-10-2026-fully-serviced","title":"Optimus PRO LX5 Bookshelf Speakers * Woofers Refoamed 10\/2026 * Fully Serviced","description":"\u003cp dir=\"ltr\" data-path-to-node=\"1\" id=\"p-rc_67011ad93d64ffbb-81\"\u003e\u003cspan class=\"citation-233\"\u003eThe \u003c\/span\u003e\u003cb data-path-to-node=\"1\" data-index-in-node=\"4\" class=\"\"\u003e\u003cspan class=\"citation-233\"\u003eOptimus PRO LX5\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-233\"\u003e (Catalog No. 40-4061) is one of the most famous and cult-classic loudspeakers ever sold by \u003c\/span\u003e\u003cb data-path-to-node=\"1\" data-index-in-node=\"111\" class=\"\"\u003e\u003cspan class=\"citation-233\"\u003eRadioShack\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-233 citation-end-233\"\u003e under their upscale Optimus brand.\u003csup class=\"superscript embedded\" data-turn-source-index=\"1\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"\"\u003e \u003c\/span\u003e\u003cspan class=\"citation-232\"\u003eIntroduced in the 1990s, the speaker's defining feature is its unique \u003c\/span\u003e\u003cb data-path-to-node=\"1\" data-index-in-node=\"227\" class=\"\"\u003e\u003cspan class=\"citation-232\"\u003eLinaeum dipole tweeter\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-232 citation-end-232\"\u003e (a distinctive curved-membrane design licensed from Linaeum Corp).\u003csup class=\"superscript embedded\" data-turn-source-index=\"2\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"2\"\u003e\u003cspan\u003eAudiophiles and reviewers were stunned when these budget-friendly mini-monitors hit the market,\u003c\/span\u003e\u003cspan\u003e as the planar-like Linaeum tweeter delivered an expansive,\u003c\/span\u003e\u003cspan\u003e 360-degree soundstage and exceptional high-frequency airiness normally found in exotic,\u003c\/span\u003e\u003cspan\u003e high-end audiophile speakers costing many times more.\u003c\/span\u003e\u003cspan\u003e Despite being sold at a mass-market retailer,\u003c\/span\u003e\u003cspan\u003e the PRO LX5—and its successor,\u003c\/span\u003e\u003cspan\u003e the LX5 II—built a lasting legacy as a beloved budget darling and a favorite subject for DIY modifications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\" data-path-to-node=\"4\"\u003eSpecifications\u003c\/h3\u003e\n\u003cul dir=\"ltr\" data-path-to-node=\"5\"\u003e\n\u003cli id=\"p-rc_67011ad93d64ffbb-82\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,0,0\" id=\"p-rc_67011ad93d64ffbb-89\"\u003e\u003cb data-path-to-node=\"5,0,0\" data-index-in-node=\"0\"\u003eType:\u003c\/b\u003e\u003cspan class=\"\"\u003e \u003c\/span\u003e\u003cspan class=\"citation-231 citation-end-231\"\u003eTwo-way, stand- or bookshelf-mounted reflex-loaded box loudspeaker\u003csup class=\"superscript embedded\" data-turn-source-index=\"3\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,1,0\"\u003e\u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"0\"\u003eEnclosure:\u003c\/b\u003e\u003cspan\u003e Ported box design with heavy die-cast metal or rigid composite construction (finished in matte gray)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,2,0\"\u003e\u003cb data-path-to-node=\"5,2,0\" data-index-in-node=\"0\"\u003eDrive-Units:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\" data-path-to-node=\"5,2,1\"\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,2,1,0,0\"\u003e\u003cb data-path-to-node=\"5,2,1,0,0\" data-index-in-node=\"0\"\u003eBass\/Midrange:\u003c\/b\u003e\u003cspan\u003e 5-inch polypropylene-cone woofer (with a rubber surround)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"p-rc_67011ad93d64ffbb-83\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,2,1,1,0\" id=\"p-rc_67011ad93d64ffbb-95\"\u003e\u003cb data-path-to-node=\"5,2,1,1,0\" data-index-in-node=\"0\"\u003eTweeter:\u003c\/b\u003e\u003cspan class=\"\"\u003e \u003c\/span\u003e\u003cspan class=\"citation-230 citation-end-230\"\u003e2\" x 4\" Linaeum dipole tweeter\u003csup class=\"superscript embedded\" data-turn-source-index=\"4\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli id=\"p-rc_67011ad93d64ffbb-84\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,3,0\" id=\"p-rc_67011ad93d64ffbb-90\"\u003e\u003cb data-path-to-node=\"5,3,0\" data-index-in-node=\"0\"\u003eFrequency Range:\u003c\/b\u003e\u003cspan class=\"\"\u003e \u003c\/span\u003e\u003cspan class=\"citation-229 citation-end-229\"\u003e85 Hz – 20,000 Hz (some versions rated up to 25 kHz)\u003csup class=\"superscript embedded\" data-turn-source-index=\"5\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"p-rc_67011ad93d64ffbb-85\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,4,0\" id=\"p-rc_67011ad93d64ffbb-91\"\u003e\u003cb data-path-to-node=\"5,4,0\" data-index-in-node=\"0\"\u003eNominal Impedance:\u003c\/b\u003e\u003cspan class=\"\"\u003e \u003c\/span\u003e\u003cspan class=\"citation-228 citation-end-228\"\u003e8 ohms\u003csup class=\"superscript embedded\" data-turn-source-index=\"6\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"p-rc_67011ad93d64ffbb-86\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,5,0\" id=\"p-rc_67011ad93d64ffbb-92\"\u003e\u003cb data-path-to-node=\"5,5,0\" data-index-in-node=\"0\"\u003eSensitivity:\u003c\/b\u003e\u003cspan\u003e Approx.\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-227 citation-end-227\"\u003e81.5 dB \/ 2.83V\/m (B-weighted)\u003csup class=\"superscript embedded\" data-turn-source-index=\"7\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,6,0\"\u003e\u003cb data-path-to-node=\"5,6,0\" data-index-in-node=\"0\"\u003ePower Handling:\u003c\/b\u003e\u003cspan\u003e Recommended maximum up to 100W – 130W\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"p-rc_67011ad93d64ffbb-87\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,7,0\" id=\"p-rc_67011ad93d64ffbb-93\"\u003e\u003cb data-path-to-node=\"5,7,0\" data-index-in-node=\"0\"\u003eDimensions:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-226 citation-end-226\"\u003e10.5\" H × 6.375\" W × 6.5\" D (approx. 267 × 162 × 165 mm)\u003csup class=\"superscript embedded\" data-turn-source-index=\"8\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"p-rc_67011ad93d64ffbb-88\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,8,0\" id=\"p-rc_67011ad93d64ffbb-94\"\u003e\u003cb data-path-to-node=\"5,8,0\" data-index-in-node=\"0\"\u003eWeight:\u003c\/b\u003e\u003cspan\u003e Approx.\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-225 citation-end-225\"\u003e7.5 lbs (3.4 kg) per speaker\u003csup class=\"superscript embedded\" data-turn-source-index=\"9\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"citation-225 citation-end-225\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0673\/9204\/5301\/files\/ServiceSpeakers.png?v=1775659965\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Optimus","offers":[{"title":"Default Title","offer_id":68019415810293,"sku":null,"price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/9204\/5301\/files\/D6059D03-9752-4ECC-BE8D-ED94B355C75A_4_5005_c.jpg?v=1794400781","url":"https:\/\/www.theturntablestore.com\/products\/optimus-pro-lx5-bookshelf-speakers-woofers-refoamed-10-2026-fully-serviced","provider":"The Turntable Store","version":"1.0","type":"link"}