{"product_id":"l12-2-120w-stereo-power-amplifier-diy-kit","title":"L12-2 120W+120W Stereo Power Amplifier DIY Kit – Dual Channel","description":"\u003c!--[Datacaciques code start,cross,md5___14440___,don't modify it]--\u003e\u003c!-- dc-cs-style,md5:3787ff157e6abd616f62a5f052ef3d0c --\u003e\u003c!--[Datacaciques code end]--\u003e\u003c!--[Datacaciques code start,cross,md5___357___,don't modify it]--\u003e\u003c!-- dc-cs-link,md5:2b28888ca3260f3ea47b707b9e7ecd31 --\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003clink rel=\"stylesheet prefetch\" href=\"https:\/\/crosell.datacaciques.com\/cmaster\/getstyle?s=H4sIAAAAAAAAA3XOuRXDMAxEwYYUEDdQDkFZFTjc4i1fIeP%2FgB2HOJVlmgdIK01zSAxhd4saxxPsMkg51WiALpyENbCuXxJRVldCB4ZhCRb%2Fr1xcIgpdmI5q6PchlZeImSXOhDB4wOWTuKo4WM0wH6BA3lvznYzrzknM99DEUlwE86P3wt4Ley%2FsvbD3wt4KX8uU0LtkAQAA\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"dc_tracker_img\" style=\"margin-top: 25px; text-align: left;\"\u003e\n\u003ch2\u003e\u003cspan\u003eL12-2 120W+120W Stereo Power Amplifier DIY Kit – Dual Channel\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eBuild your own high-performance stereo audio amplifier with the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eL12-2 dual-channel power amplifier DIY kit\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Designed for audio enthusiasts, electronics hobbyists, and experienced DIY amplifier builders, this kit features the L12-2 discrete-component amplifier circuit and supports a published output rating of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e120W per channel into 8Ω with a ±50V DC power supply\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis version includes \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003etwo unassembled amplifier board kits fitted with Sanken-series output transistors\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, intended for building a complete two-channel stereo amplifier.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe L12-2 circuit is designed for low distortion, wide frequency response, and high-fidelity audio reproduction when correctly assembled, powered, and configured.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDual-channel stereo configuration:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Includes two amplifier board kits, one for each audio channel.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e120W per channel:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Published output rating of 120W into 8Ω at ±50V DC.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDiscrete-component amplifier design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for DIY high-fidelity audio projects.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSanken output transistor version:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Components for the Sanken-based amplifier configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eLow harmonic distortion:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Manufacturer-published THD below 0.0005% at 1kHz and 10W.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWide frequency response:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Published frequency range of 15Hz–50kHz (-3dB).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDIY assembly:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Intended for users experienced with electronic component soldering and amplifier construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eExternal power supply required:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Designed for a suitable regulated or adequately filtered bipolar DC power supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eParameter\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eL12-2\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCircuit version\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVER 4.2\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAmplifier type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDiscrete-component audio power amplifier\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eChannels\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 (Stereo; two mono boards)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRated output power\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e120W per channel at 8Ω, ±50V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePublished alternative output\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e200W at 4Ω, ±50V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower supply\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBipolar DC, approximately ±12V to ±55V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRecommended supply for rated output\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e±50V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eTotal harmonic distortion (THD)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBelow 0.0005% at 1kHz, 10W (published)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSlew rate\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e35V\/µs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDamping factor\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGreater than 200 at 8Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInput sensitivity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.6V for 120W output at 8Ω\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFrequency response\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e15Hz–50kHz (-3dB)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eFrequency response flatness\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-0.02dB, 20Hz–20kHz (published)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eQuiescent current\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e80mA per channel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eVoltage gain\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApproximately 31×\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutput transistor configuration\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSanken-series transistors\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eAssembly\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUnassembled DIY kit\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eSpecifications are based on the manufacturer's published information. Actual performance depends on assembly quality, power supply, heatsinking, speaker load, and operating conditions.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAssembly and Installation\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThis product is supplied as an \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eunassembled DIY amplifier kit\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and requires technical assembly before operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003col start=\"1\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInstall and solder the supplied components onto the amplifier PCBs according to the circuit layout.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMount the output transistors to a suitable external heatsink using the required insulation and thermal interface materials.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eConnect a compatible bipolar DC power supply to the designated VCC+, GND, and VEE- terminals.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eConnect the audio signal input and speaker output to the correctly identified terminals.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCheck wiring, polarity, insulation, and component installation before applying power.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eVerify the amplifier's operating conditions and bias according to the appropriate assembly guidance before connecting speakers.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eImportant:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e A suitable heatsink, power supply, enclosure, and other necessary system components are required for a complete amplifier build. Do not operate the amplifier without adequate cooling.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePackage Contents\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e2 × L12-2 amplifier PCB kits\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eElectronic components for assembly of the two amplifier boards\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSanken-series output transistors for the selected kit version\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePlease note:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e This is a DIY component kit, not a ready-to-use finished amplifier. Soldering and assembly are required. The external power supply, heatsinks, amplifier enclosure, and speakers are not included unless expressly stated.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eApplications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDIY stereo power amplifier construction\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHi-Fi audio amplifier projects\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHome audio amplifier development\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eElectronics education and practical circuit assembly\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCustom amplifier enclosures and audio system integration\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eImportant Notes\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eIntended for experienced DIY electronics users.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFollow appropriate electrical safety precautions when using high-voltage DC power supplies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSelect suitable heatsinking and ensure correct electrical insulation for power transistors.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePublished performance figures are reference specifications rather than individually verified test results for every kit.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFor successful assembly, users should have suitable soldering, measurement, and electronic troubleshooting equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!--[Datacaciques code end]--\u003e\n\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 Electornics","offers":[{"title":"Default Title","offer_id":40495477227649,"sku":"LJM-KIT-L12-2-DUAL","price":52.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/8647\/4369\/files\/fa4312cd81e00c2a6f2f3cea5196fef1.jpg?v=1757987066","url":"https:\/\/www.lilly-electronics.com\/fr\/products\/l12-2-120w-stereo-power-amplifier-diy-kit","provider":"Lilly Electronics","version":"1.0","type":"link"}