{"product_id":"ljm-mono-class-ab-l12-2-power-amp-board-assembled-120w-55v-with-heatsink-ver5","title":"LJM Mono Class AB L12-2 Power Amp Board Assembled 120W +-55V with Heatsink VER5","description":"\u003cdiv\u003e\u003cdiv\u003e\n\u003cstrong\u003e\u003cspan style=\"font-size: x-large;\"\u003e\u003cspan style=\"color: #ff0010;\"\u003eLJM Mono Class AB L12-2 Power Amp board V5.0 Assembled 120W +-55V with Heatsink\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eDescription:\u003c\/span\u003e\u003c\/strong\u003e                                                                    \u003cbr\u003e\u003cbr\u003e\u003cdiv\u003eSupply voltage within+-55V.\u003c\/div\u003e\n\u003cdiv\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, 8 ohm 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\u003eStatic current=80MA\u003c\/div\u003e\n\u003cdiv\u003eVoltage usage range=DC positive and negative dual voltage ± 12V to ± 55V\u003c\/div\u003e\n\u003cdiv\u003eVoltage amplification factor=31 times\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eImprovement compared to VER4 version in VER5 version\u003c\/div\u003e\n\u003cdiv\u003e1. Replace low-power transistors B649 and D669 with medium power transistor A1837, C4793，\u003c\/div\u003e\n\u003cdiv\u003e2. Increase the static current of the driving power transistor from 6MA to 18MA.\u003c\/div\u003e\n\u003cdiv\u003e3. Add a radiator to the medium power tube.\u003c\/div\u003e\n\u003cdiv\u003e4. Increase the static current adjustment function of the output power transistor, so that the static current of the left and right channel circuit boards can be the same.\u003c\/div\u003e\n\u003cdiv\u003e5. Use electronic filters to replace the previous RC passive filters and reduce input stage interference.\u003c\/div\u003e\n\u003cdiv\u003e6. Change the input stage mode to increase the input impedance. Low frequency performance improvement.\u003c\/div\u003e\n\u003cbr\u003e\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 V5.0 Audio Power Amplifier Board (with heatsink )\u003cbr\u003e\u003cbr\u003e \u003c\/div\u003e\u003c\/div\u003e\u003cdiv align=\"center\"\u003e \u003c\/div\u003e\u003cdiv align=\"center\"\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cbr\u003e\u003c\/div\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{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,hr+*\u003espan.ebay{display:none;}\u003c\/style\u003e","brand":"Lilly Electronics","offers":[{"title":"Default Title","offer_id":40572769763457,"sku":"LJM-L12-2-MONO-HS-VER5","price":69.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/8647\/4369\/files\/d79659b897f7eb2d1e6c0c70a27528ab.jpg?v=1766740424","url":"https:\/\/www.lilly-electronics.com\/products\/ljm-mono-class-ab-l12-2-power-amp-board-assembled-120w-55v-with-heatsink-ver5","provider":"Lilly Electronics","version":"1.0","type":"link"}