{"product_id":"realistic-31-1989-stereo-graphic-equalizer-fully-serviced","title":"Realistic 31-1989 Stereo Graphic Equalizer * Fully Serviced","description":"\u003ch2 dir=\"ltr\" data-path-to-node=\"3\"\u003eOverview \u0026amp; History\u003c\/h2\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"4\"\u003e\u003cspan\u003eReleased by RadioShack in the \u003c\/span\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"30\"\u003emid-1980s (around 1985–1986)\u003c\/b\u003e\u003cspan\u003e under their in-house \u003c\/span\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"80\"\u003eRealistic\u003c\/b\u003e\u003cspan\u003e brand,\u003c\/span\u003e\u003cspan\u003e the \u003c\/span\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"101\"\u003e31-1989\u003c\/b\u003e\u003cspan\u003e was built in South Korea as a compact,\u003c\/span\u003e\u003cspan\u003e straightforward equalizer.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\" data-path-to-node=\"5\"\u003eKey Design Highlights:\u003c\/h3\u003e\n\u003cul dir=\"ltr\" data-path-to-node=\"6\"\u003e\n\u003cli id=\"p-rc_db9104f1b2a88787-310\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"6,0,0\" id=\"p-rc_db9104f1b2a88787-316\"\u003e\u003cb data-path-to-node=\"6,0,0\" data-index-in-node=\"0\"\u003e7-Band Equalization:\u003c\/b\u003e\u003cspan class=\"\"\u003e \u003c\/span\u003e\u003cspan class=\"citation-901 citation-end-901\"\u003eFeatures 7 physical slider controls per channel (\u003csup class=\"superscript embedded\" data-turn-source-index=\"2\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"60\\text{ Hz}\" data-index-in-node=\"70\"\u003e$60\\text{ Hz}$\u003c\/span\u003e\u003cspan class=\"citation-900 citation-end-900\"\u003e, \u003csup class=\"superscript embedded\" data-turn-source-index=\"3\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"150\\text{ Hz}\" data-index-in-node=\"84\"\u003e$150\\text{ Hz}$\u003c\/span\u003e\u003cspan class=\"citation-899 citation-end-899\"\u003e, \u003csup class=\"superscript embedded\" data-turn-source-index=\"4\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"400\\text{ Hz}\" data-index-in-node=\"99\"\u003e$400\\text{ Hz}$\u003c\/span\u003e\u003cspan class=\"citation-898 citation-end-898\"\u003e, \u003csup class=\"superscript embedded\" data-turn-source-index=\"5\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"1\\text{ kHz}\" data-index-in-node=\"114\"\u003e$1\\text{ kHz}$\u003c\/span\u003e\u003cspan class=\"citation-897 citation-end-897\"\u003e, \u003csup class=\"superscript embedded\" data-turn-source-index=\"6\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"2.4\\text{ kHz}\" data-index-in-node=\"128\"\u003e$2.4\\text{ kHz}$\u003c\/span\u003e\u003cspan class=\"citation-896 citation-end-896\"\u003e, \u003csup class=\"superscript embedded\" data-turn-source-index=\"7\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"6\\text{ kHz}\" data-index-in-node=\"144\"\u003e$6\\text{ kHz}$\u003c\/span\u003e\u003cspan class=\"citation-895 citation-end-895\"\u003e, and \u003csup class=\"superscript embedded\" data-turn-source-index=\"8\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"15\\text{ kHz}\" data-index-in-node=\"162\"\u003e$15\\text{ kHz}$\u003c\/span\u003e\u003cspan class=\"citation-894 citation-end-894\"\u003e) to shape bass, midrange, and treble levels without excess clutter.\u003csup class=\"superscript embedded\" data-turn-source-index=\"9\"\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=\"6,1,0\"\u003e\u003cb data-path-to-node=\"6,1,0\" data-index-in-node=\"0\"\u003ePure Analog Layout:\u003c\/b\u003e\u003cspan\u003e Uses an all-analog front panel with physical push buttons for \u003c\/span\u003e\u003cb data-path-to-node=\"6,1,0\" data-index-in-node=\"82\"\u003ePower\u003c\/b\u003e\u003cspan\u003e,\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cb data-path-to-node=\"6,1,0\" data-index-in-node=\"89\"\u003eEQ In\/Bypass\u003c\/b\u003e\u003cspan\u003e,\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cb data-path-to-node=\"6,1,0\" data-index-in-node=\"103\"\u003eTape Monitor\u003c\/b\u003e\u003cspan\u003e,\u003c\/span\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cb data-path-to-node=\"6,1,0\" data-index-in-node=\"121\"\u003eEQ Rec\u003c\/b\u003e\u003cspan\u003e (recording equalized audio directly onto tape).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli id=\"p-rc_db9104f1b2a88787-311\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"6,2,0\" id=\"p-rc_db9104f1b2a88787-317\"\u003e\u003cb data-path-to-node=\"6,2,0\" data-index-in-node=\"0\"\u003eCompact Form Factor:\u003c\/b\u003e\u003cspan class=\"\"\u003e \u003c\/span\u003e\u003cspan class=\"citation-893 citation-end-893\"\u003eMeasuring just \u003csup class=\"superscript embedded\" data-turn-source-index=\"10\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"13 \\text{ inches}\" data-index-in-node=\"36\"\u003e$13 \\text{ inches}$\u003c\/span\u003e\u003cspan class=\"citation-892 citation-end-892\"\u003e wide, it fits easily into tight shelf spaces or stacked components.\u003csup class=\"superscript embedded\" data-turn-source-index=\"11\"\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\u003ch2 dir=\"ltr\" data-path-to-node=\"8\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ch3 dir=\"ltr\" data-path-to-node=\"9\"\u003eAudio Performance\u003c\/h3\u003e\n\u003cul dir=\"ltr\" data-path-to-node=\"10\"\u003e\n\u003cli id=\"p-rc_db9104f1b2a88787-312\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"10,0,0\" id=\"p-rc_db9104f1b2a88787-318\"\u003e\u003cb data-path-to-node=\"10,0,0\" data-index-in-node=\"0\"\u003eFrequency Bands (7 per channel):\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"60\\text{ Hz}\" data-index-in-node=\"33\"\u003e$60\\text{ Hz}$\u003c\/span\u003e\u003cspan class=\"citation-891 citation-end-891\"\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=\"150\\text{ Hz}\" data-index-in-node=\"47\"\u003e$150\\text{ Hz}$\u003c\/span\u003e\u003cspan class=\"citation-890 citation-end-890\"\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=\"400\\text{ Hz}\" data-index-in-node=\"62\"\u003e$400\\text{ Hz}$\u003c\/span\u003e\u003cspan class=\"citation-889 citation-end-889\"\u003e, \u003csup class=\"superscript embedded\" data-turn-source-index=\"14\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"1\\text{ kHz}\" data-index-in-node=\"77\"\u003e$1\\text{ kHz}$\u003c\/span\u003e\u003cspan class=\"citation-888 citation-end-888\"\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=\"2.4\\text{ kHz}\" data-index-in-node=\"91\"\u003e$2.4\\text{ kHz}$\u003c\/span\u003e\u003cspan class=\"citation-887 citation-end-887\"\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=\"6\\text{ kHz}\" data-index-in-node=\"107\"\u003e$6\\text{ kHz}$\u003c\/span\u003e\u003cspan class=\"citation-886 citation-end-886\"\u003e, and \u003csup class=\"superscript embedded\" data-turn-source-index=\"17\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"15\\text{ kHz}\" data-index-in-node=\"125\"\u003e$15\\text{ kHz}$\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\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"10,1,0\"\u003e\u003cb data-path-to-node=\"10,1,0\" data-index-in-node=\"0\"\u003eControl Range:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"\\pm 12\\text{ dB}\" data-index-in-node=\"15\"\u003e$\\pm 12\\text{ dB}$\u003c\/span\u003e\u003cspan\u003e boost or cut per slider\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"10,2,0\"\u003e\u003cb data-path-to-node=\"10,2,0\" data-index-in-node=\"0\"\u003eFrequency Response:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"5\\text{ Hz}\" data-index-in-node=\"20\"\u003e$5\\text{ Hz}$\u003c\/span\u003e\u003cspan\u003e to \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"100,000\\text{ Hz}\" data-index-in-node=\"35\"\u003e$100,000\\text{ Hz}$\u003c\/span\u003e\u003cspan\u003e (\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"\\pm 1\\text{ dB}\" data-index-in-node=\"54\"\u003e$\\pm 1\\text{ dB}$\u003c\/span\u003e\u003cspan\u003e)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"10,3,0\"\u003e\u003cb data-path-to-node=\"10,3,0\" data-index-in-node=\"0\"\u003eTotal Harmonic Distortion (THD):\u003c\/b\u003e\u003cspan\u003e 0.\u003c\/span\u003e\u003cspan\u003e02%\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"10,4,0\"\u003e\u003cb data-path-to-node=\"10,4,0\" data-index-in-node=\"0\"\u003eSignal-to-Noise Ratio (S\/N):\u003c\/b\u003e\u003cspan\u003e 90 dB\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"10,5,0\"\u003e\u003cb data-path-to-node=\"10,5,0\" data-index-in-node=\"0\"\u003eOutput Level \/ Gain:\u003c\/b\u003e\u003cspan\u003e 1V RMS \/ \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"0\\text{ dB}\" data-index-in-node=\"30\"\u003e$0\\text{ dB}$\u003c\/span\u003e\u003cspan\u003e unity gain\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\" data-path-to-node=\"12\"\u003eConnections \u0026amp; Mechanical Specs\u003c\/h3\u003e\n\u003cul dir=\"ltr\" data-path-to-node=\"13\"\u003e\n\u003cli id=\"p-rc_db9104f1b2a88787-313\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"13,0,0\" id=\"p-rc_db9104f1b2a88787-319\"\u003e\u003cb data-path-to-node=\"13,0,0\" data-index-in-node=\"0\"\u003eInputs:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-885 citation-end-885\"\u003eMain Audio L\/R (RCA), Tape Monitor L\/R (RCA)\u003csup class=\"superscript embedded\" data-turn-source-index=\"18\"\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_db9104f1b2a88787-314\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"13,1,0\" id=\"p-rc_db9104f1b2a88787-320\"\u003e\u003cb data-path-to-node=\"13,1,0\" data-index-in-node=\"0\"\u003eOutputs:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-884 citation-end-884\"\u003eMain Audio L\/R (RCA), Tape Out L\/R (RCA)\u003csup class=\"superscript embedded\" data-turn-source-index=\"19\"\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_db9104f1b2a88787-315\"\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"13,2,0\" id=\"p-rc_db9104f1b2a88787-321\"\u003e\u003cb data-path-to-node=\"13,2,0\" data-index-in-node=\"0\"\u003eDimensions (\u003cspan class=\"math-inline\" data-math=\"W \\times D \\times H\" data-index-in-node=\"12\"\u003e$W \\times D \\times H$\u003c\/span\u003e):\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"330 \\times 150 \\times 64\\text{ mm}\" data-index-in-node=\"34\"\u003e$330 \\times 150 \\times 64\\text{ mm}$\u003c\/span\u003e\u003cspan class=\"citation-883 citation-end-883\"\u003e (\u003csup class=\"superscript embedded\" data-turn-source-index=\"20\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan class=\"math-inline\" data-math=\"13.0 \\times 6.25 \\times 2.75\\text{ in}\" data-index-in-node=\"70\"\u003e$13.0 \\times 6.25 \\times 2.75\\text{ in}$\u003c\/span\u003e\u003cspan class=\"citation-882 citation-end-882\"\u003e)\u003csup class=\"superscript embedded\" data-turn-source-index=\"21\"\u003e\u003c!----\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Realistic","offers":[{"title":"Default Title","offer_id":68127940968693,"sku":null,"price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/9204\/5301\/files\/IMG_8718_d96998ed-3192-43a3-ac4d-21a788d0bb1a.jpg?v=1794617260","url":"https:\/\/www.theturntablestore.com\/products\/realistic-31-1989-stereo-graphic-equalizer-fully-serviced","provider":"The Turntable Store","version":"1.0","type":"link"}