{"product_id":"optimus-pro-lx5-bookshelf-speakers-refoamed-10-2026-fully-serviced","title":"Optimus Pro LX5 Bookshelf Speakers * Refoamed 10\/2026 * Fully Serviced","description":"\u003cp dir=\"ltr\" data-path-to-node=\"1\" id=\"p-rc_c68e37af3dfd114c-59\"\u003e\u003cspan class=\"citation-252\"\u003eThe \u003c\/span\u003e\u003cb data-path-to-node=\"1\" data-index-in-node=\"4\" class=\"\"\u003e\u003cspan class=\"citation-252\"\u003eOptimus Pro LX5\u003c\/span\u003e\u003c\/b\u003e\u003cspan class=\"citation-252 citation-end-252\"\u003e (and its later revision, the LX5 II) is one of the most famous and culturally unique speakers RadioShack ever produced during the mid-1990s.\u003csup class=\"superscript embedded\" data-turn-source-index=\"1\"\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\u003cul dir=\"ltr\" data-path-to-node=\"2\"\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"2,0,0\"\u003e\u003cb data-path-to-node=\"2,0,0\" data-index-in-node=\"0\"\u003eThe Linaeum Dipole Tweeter:\u003c\/b\u003e\u003cspan\u003e What made the LX5 legendary was its inclusion of a patented \u003c\/span\u003e\u003cb data-path-to-node=\"2,0,0\" data-index-in-node=\"88\"\u003eLinaeum dipole tweeter\u003c\/b\u003e\u003cspan\u003e (featuring a distinctive curved,\u003c\/span\u003e\u003cspan\u003e dual-blade diaphragm design).\u003c\/span\u003e\u003cspan\u003e Developed by audio designer Paul Wilbur (founder of Linaeum),\u003c\/span\u003e\u003cspan\u003e these tweeters radiated high frequencies both forward and backward,\u003c\/span\u003e\u003cspan\u003e creating an extraordinarily wide,\u003c\/span\u003e\u003cspan\u003e airy,\u003c\/span\u003e\u003cspan\u003e and three-dimensional soundstage that punched way above RadioShack's typical consumer budget tier.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"p-rc_c68e37af3dfd114c-60\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"2,1,0\" id=\"p-rc_c68e37af3dfd114c-67\"\u003e\u003cb data-path-to-node=\"2,1,0\" data-index-in-node=\"0\"\u003eThe Cult Following:\u003c\/b\u003e\u003cspan\u003e Audiophile publications and reviewers (like Stereophile and Ken Kessler) were genuinely stunned that a mass-market retailer like RadioShack could produce a mini-monitor with such remarkable high-frequency detail and imaging.\u003c\/span\u003e\u003cspan class=\"\"\u003e \u003c\/span\u003e\u003cspan class=\"citation-251 citation-end-251\"\u003eBecause the original foam surrounds on the woofers naturally degrade over time, they remain a favorite project speaker for vintage audio hobbyists who enjoy re-foaming, recapping, or upgrading them.\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\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\" data-path-to-node=\"4\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul dir=\"ltr\" data-path-to-node=\"5\"\u003e\n\u003cli id=\"p-rc_c68e37af3dfd114c-61\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,0,0\" id=\"p-rc_c68e37af3dfd114c-68\"\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-250 citation-end-250\"\u003eTwo-way, stand- or bookshelf-mounted, reflex-loaded (front-ported) 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 id=\"p-rc_c68e37af3dfd114c-62\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,1,0\" id=\"p-rc_c68e37af3dfd114c-69\"\u003e\u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"0\"\u003eEnclosure:\u003c\/b\u003e\u003cspan class=\"\"\u003e \u003c\/span\u003e\u003cspan class=\"citation-249 citation-end-249\"\u003eDie-cast aluminum chassis finished in matte-gray Nextel\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\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\"\u003eWoofer:\u003c\/b\u003e\u003cspan\u003e 5-inch polypropylene-cone (or woven Kevlar\/composite blend depending on specific production runs) with a rubber-surround structure.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,2,1,1,0\"\u003e\u003cb data-path-to-node=\"5,2,1,1,0\" data-index-in-node=\"0\"\u003eTweeter:\u003c\/b\u003e\u003cspan\u003e Linaeum 2\" by 4\" dipole ribbon\/film tweeter.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli id=\"p-rc_c68e37af3dfd114c-63\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,3,0\" id=\"p-rc_c68e37af3dfd114c-70\"\u003e\u003cb data-path-to-node=\"5,3,0\" data-index-in-node=\"0\"\u003eFrequency Range:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"85\\text{ Hz}\" data-index-in-node=\"17\"\u003e$85 Hz \u003c\/span\u003e\u003cspan class=\"citation-248 citation-end-248\"\u003eto \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"20,000\\text{ Hz}\" data-index-in-node=\"33\"\u003e20,000 Hz\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=\"5,4,0\"\u003e\u003cb data-path-to-node=\"5,4,0\" data-index-in-node=\"0\"\u003eNominal Impedance:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"8\\text{ ohms}\" data-index-in-node=\"19\"\u003e8 ohms\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,5,0\"\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=\"math-inline\" data-math=\"81.5\\text{ dB} \/ 2.83\\text{V} \/ \\text{m}\" data-index-in-node=\"21\"\u003e$81.5\\text{ dB} \/ 2.83\\text{V} \/ \\text{m}$\u003c\/span\u003e\u003cspan\u003e (low efficiency,\u003c\/span\u003e\u003cspan\u003e meaning they benefit from a clean,\u003c\/span\u003e\u003cspan\u003e stable amplifier)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"p-rc_c68e37af3dfd114c-64\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,6,0\" id=\"p-rc_c68e37af3dfd114c-71\"\u003e\u003cb data-path-to-node=\"5,6,0\" data-index-in-node=\"0\"\u003eRecommended Amplifier Power:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-247 citation-end-247\"\u003eUp to \u003csup class=\"superscript embedded\" data-turn-source-index=\"6\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"100\\text{W}\" data-index-in-node=\"35\"\u003e$100\\text{W}$\u003c\/span\u003e\u003cspan class=\"citation-246 citation-end-246\"\u003e maximum\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 id=\"p-rc_c68e37af3dfd114c-65\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,7,0\" id=\"p-rc_c68e37af3dfd114c-72\"\u003e\u003cb data-path-to-node=\"5,7,0\" data-index-in-node=\"0\"\u003eCrossover Frequency:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-245 citation-end-245\"\u003eAround \u003csup class=\"superscript embedded\" data-turn-source-index=\"8\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"4\\text{ kHz}\" data-index-in-node=\"28\"\u003e$4\\text{ kHz}$\u003c\/span\u003e\u003cspan class=\"citation-244 citation-end-244\"\u003e to \u003csup class=\"superscript embedded\" data-turn-source-index=\"9\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"5\\text{ kHz}\" data-index-in-node=\"44\"\u003e$5\\text{ kHz}$\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_c68e37af3dfd114c-66\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5,8,0\" id=\"p-rc_c68e37af3dfd114c-73\"\u003e\u003cb data-path-to-node=\"5,8,0\" data-index-in-node=\"0\"\u003eDimensions:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"10.5\\text{ inches}\" data-index-in-node=\"12\"\u003e$10.5\\text{ inches}$\u003c\/span\u003e\u003cspan class=\"citation-243 citation-end-243\"\u003e (\u003csup class=\"superscript embedded\" data-turn-source-index=\"10\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"267\\text{ mm}\" data-index-in-node=\"32\"\u003e$267\\text{ mm}$\u003c\/span\u003e\u003cspan class=\"citation-242 citation-end-242\"\u003e) High \u003csup class=\"superscript embedded\" data-turn-source-index=\"11\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"\\times\" data-index-in-node=\"52\"\u003e$\\times$\u003c\/span\u003e\u003cspan class=\"citation-241 citation-end-241\"\u003e \u003csup class=\"superscript embedded\" data-turn-source-index=\"12\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"6.375\\text{ inches}\" data-index-in-node=\"59\"\u003e$6.375\\text{ inches}$\u003c\/span\u003e\u003cspan class=\"citation-240 citation-end-240\"\u003e (\u003csup class=\"superscript embedded\" data-turn-source-index=\"13\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"162\\text{ mm}\" data-index-in-node=\"80\"\u003e$162\\text{ mm}$\u003c\/span\u003e\u003cspan class=\"citation-239 citation-end-239\"\u003e) Wide \u003csup class=\"superscript embedded\" data-turn-source-index=\"14\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"\\times\" data-index-in-node=\"100\"\u003e$\\times$\u003c\/span\u003e\u003cspan class=\"citation-238 citation-end-238\"\u003e \u003csup class=\"superscript embedded\" data-turn-source-index=\"15\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"6.5\\text{ inches}\" data-index-in-node=\"107\"\u003e$6.5\\text{ inches}$\u003c\/span\u003e\u003cspan class=\"citation-237 citation-end-237\"\u003e (\u003csup class=\"superscript embedded\" data-turn-source-index=\"16\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"165\\text{ mm}\" data-index-in-node=\"126\"\u003e$165\\text{ mm}$\u003c\/span\u003e\u003cspan class=\"citation-236 citation-end-236\"\u003e) Deep\u003csup class=\"superscript embedded\" data-turn-source-index=\"17\"\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=\"5,9,0\"\u003e\u003cb data-path-to-node=\"5,9,0\" data-index-in-node=\"0\"\u003eWeight:\u003c\/b\u003e\u003cspan\u003e Approx.\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"7.5\\text{ lbs}\" data-index-in-node=\"16\"\u003e$7.5\\text{ lbs}$\u003c\/span\u003e\u003cspan\u003e (\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"3.4\\text{ kg}\" data-index-in-node=\"32\"\u003e$3.4\\text{ kg}$\u003c\/span\u003e\u003cspan\u003e) per speaker\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Optimus","offers":[{"title":"Default Title","offer_id":68037319131381,"sku":null,"price":150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/9204\/5301\/files\/IMG_8533_794ca509-4ba6-4229-9095-a142efc1e1e4.jpg?v=1794492172","url":"https:\/\/www.theturntablestore.com\/products\/optimus-pro-lx5-bookshelf-speakers-refoamed-10-2026-fully-serviced","provider":"The Turntable Store","version":"1.0","type":"link"}