{"product_id":"lm3886-amplifier-board-150w-15-28v-with-4766-high-power-dc-servo-kit","title":"Lm3886 amplifier board 150w 15-28v with 4766 High Power DC Servo kit","description":"\u003cdiv\u003e\u003cspan\u003e\u003cp\u003e\u003cspan\u003eThe power amplifier board is added with a DC servo circuit, and the ground capacitor of the LM3886 negative feedback is abandoned. This capacitor has a great impact on the sound. The design makes the 3886 work in pure DC amplification mode, and the sound is very natural and transparent. Some people ask what is the role of the DC servo? Because When the LM3886 cancels the negative feedback landing capacitor, the output midpoint will easily drift and not return to zero. A servo circuit is added to help the 3886 stabilize the operating point, so that the circuit can run in a good state and get better results.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLM3886T bile power amplifier IC, with warm tone, thick bass and bright treble. Audio input coupling capacitors make music more pleasant. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFour OPO7 low-noise precision operational amplifiers, the sound is very delicate and audible, and the midpoint is extremely stable. The main filter capacitor adopts 10000uF\/50V audio custom capacitor, and adopts 25A and above rectifier flat bridge to ensure strong and continuous power support. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAll resistors are made of 718 military factory high-quality 1% to ensure a good signal-to-noise ratio and consistency of the whole machine. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e◆LM317\/LM337 low-resistance voltage regulator circuit, the sound quality lies in every detail. C1237 horn protection circuit, genuine Omron relay, the power-on delay is about 3 seconds, and the music will sound after the pull-in, and it will be disconnected immediately when it is turned off, no impact sound, and guard the horn.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBasic parameters: \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWorking voltage: AC dual 15V-28V 150w \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDual 18V 120W transformers are recommended \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLeft and right channel maximum output power: left and right channel 68Wx2 \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt is recommended to use 4-6 inch \/ 4-8 ohm 20-40W full frequency speakers \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePCB size (with heat dissipation) about: 155mm *100mm*55mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/span\u003e\u003c\/div\u003e","brand":"mickcara","offers":[{"title":"000","offer_id":40783304753289,"sku":"a00029-1","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0365\/2131\/2393\/products\/dd9035ef5c8b2823691f81ea9248f9fd.jpg?v=1663332822","url":"https:\/\/mickcara.com\/fr\/products\/lm3886-amplifier-board-150w-15-28v-with-4766-high-power-dc-servo-kit","provider":"mickcara","version":"1.0","type":"link"}