{"product_id":"ljm-mono-class-ab-l12-2-power-amp-board-assembled-120w-55v-w-heatsink-ver4-2","title":"LJM Mono Class AB L12-2 Power Amp Board Assembled 120W +-55V w\/ Heatsink VER4.2","description":"\u003cdiv\u003e\u003cdiv\u003e\n\u003cstrong\u003e\u003cspan style=\"font-size: x-large;\"\u003e\u003cspan style=\"color: #ff0010;\"\u003eMono Class AB L12-2 Power Amp board Assembled 120W +-55V with Heatsink VER4.2\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eDescription:\u003c\/span\u003e\u003c\/strong\u003e                                                                    \u003cbr\u003e\u003cbr\u003eONLY FOR PROFESSIONALS\u003cbr\u003e\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eSupply voltage + -55V or less.\u003cbr\u003ePower = 120W \/ 8R + -50V voltage\u003c\/div\u003e\n\u003cdiv\u003e200W 4R + -50V voltage\u003c\/div\u003e\n\u003cdiv\u003eTHD \u0026lt;0.0005% 1K HZ 10W\u003c\/div\u003e\n\u003cdiv\u003eSR = 35V \/ US\u003c\/div\u003e\n\u003cdiv\u003eDamping coefficient\u0026gt; 200, 8ohm load\u003c\/div\u003e\n\u003cdiv\u003eInput sensitivity = 1.6V Output 120W 8R\u003c\/div\u003e\n\u003cdiv\u003eFrequency response range = 15HZ-50K HZ (-3DB)\u003c\/div\u003e\n\u003cdiv\u003e20HZ * 20K HZ = -0.02 DB\u003c\/div\u003e\n\u003cdiv\u003eQuiescent current = 80MA\u003c\/div\u003e\n\u003cdiv\u003eVoltage range = DC plus or minus + -12V to + -55V\u003c\/div\u003e\n\u003cdiv\u003eVoltage magnification = 31 times\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eTest chart:\u003c\/div\u003e\n\u003cdiv\u003eInput signal-THD + N test\u003c\/div\u003e\n\u003cdiv\u003eWhen the input voltage is 700MV, the output voltage is about 23VPP load is 8 ohm resistor.\u003c\/div\u003e\n\u003cdiv\u003eFigure 5 test: using 8 ohm 1000W power resistor.\u003c\/div\u003e\n\u003cdiv\u003eTHD + N approximately = 0.0009%. (photo 7)\u003c\/div\u003e\n\u003cdiv\u003eFrequency response:\u003cbr\u003e20HZ-20KHZ \u0026lt;-0.02DB (photo 8)\u003cbr\u003eTHD + N (photo 9)\u003c\/div\u003e\n\u003cdiv\u003ePCB with 2MM thickening material 75 UM thick copper film.\u003cbr\u003eVoltage magnification is 31 times.\u003c\/div\u003e\n\u003cdiv\u003eQuiescent current per channel is 40MA level: CLASS AB.\u003c\/div\u003e\n\u003cdiv\u003eSmall signal tube original TOSHIBA low noise tube, the original ON low noise tube as a current source and voltage amplification,\u003c\/div\u003e\n\u003cdiv\u003eOutput tube imported Sanken UHF FT 70M, multi-emitter LAPT audio name tube.\u003c\/div\u003e\n\u003cdiv\u003e2SA1186 2SC2837, two pairs of output tubes per channel.\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eOne channel only needs to be installed in the radiator on the big pipe.\u003c\/div\u003e\n\u003cdiv\u003eLarge pipes can be installed on different radiators.\u003c\/div\u003e\n\u003cdiv\u003eAt + -50V. 8 European load can output 120W power.\u003c\/div\u003e\n\u003cdiv\u003eTest, the load is 6.6 Ω, photo 10,photo 11\u003c\/div\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: x-large;\"\u003e\u003cstrong\u003ePackage:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e1 x  L12-2 Audio Power Amplifier Board with heatsink VER4.2\u003cbr\u003e\u003cbr\u003e \u003c\/div\u003e\u003c\/div\u003e\u003cdiv align=\"center\"\u003e \u003c\/div\u003e\u003cdiv align=\"center\"\u003e\u003c\/div\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c!--[Datacaciques code end]--\u003e\u003cstyle type=\"text\/css\"\u003e.dc_tracker_img{display:none;}.dc_tracker_img:last-of-type{display:block;}p:empty+hr{display:none;}hr+span.ebay,hr+*\u003espan.ebay{display:none;}\u003c\/style\u003e\u003cstyle type=\"text\/css\"\u003e.dc_tracker_img{display:none;}.dc_tracker_img:last-of-type{display:block;}p:empty+hr{display:none;}hr+span.ebay{display:none;}\u003c\/style\u003e","brand":"Lilly Electronics","offers":[{"title":"Default Title","offer_id":40586147364993,"sku":"LJM-L12-2-MONO-HS-VER4.2","price":77.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/8647\/4369\/files\/4fa26a768fd6597513417bb73fd4c17d.jpg?v=1767861703","url":"https:\/\/www.lilly-electronics.com\/products\/ljm-mono-class-ab-l12-2-power-amp-board-assembled-120w-55v-w-heatsink-ver4-2","provider":"Lilly Electronics","version":"1.0","type":"link"}