{"product_id":"gc-version-lm1875-dual-core-parallel-amplifier-board-kit-double-sided-immersed-gold-board","title":"GC version LM1875 dual-chip parallel amplifier board kit – double-sided immersion gold PCB","description":"\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"font-size: 26.0px;\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eThe basic evaluation method of true and false LM1875:\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 1.12em 0.0px;padding: 0.0px;color: #000000;font-size: 14.0px;font-style: normal;font-weight: 400;letter-spacing: normal;orphans: 2;text-align: start;text-indent: 0.0px;text-transform: none;white-space: normal;widows: 2;word-spacing: 0.0px;background-color: #ffffff;\"\u003e\u003cspan style=\"font-size: 26.0px;\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003eThe real LM1875 can be put on AC22VX2, and the counterfeit will fry if it exceeds 18VX2. The real output is protected, and the output short circuit will not burn, and the counterfeit output short circuit will blow up. If it is TDA2030A, it will blow up if it exceeds 16V.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;\"\u003e\u003cspan style=\"font-size: 22.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cspan style=\"line-height: 1.5;\"\u003eGG version is the full name.\u003c\/span\u003e\u003cspan style=\"line-height: 14.0px;background-color: #e6f6e6;\"\u003eGaincard is a very sound LM1875 circuit that has been repeatedly compared and optimized abroad. It has frequency bandwidth, fineness, hearing resistance, midpoint and stability. If you have not played LM1875, it is recommended to buy it and try it. If you have bought LM1875, users can buy it as an upgrade.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;\"\u003e\u003cspan style=\"font-size: 22.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cspan style=\"line-height: 14.0px;background-color: #e6f6e6;\"\u003eThe principle is that the voltage of the two input terminals of the inverting amplifier circuit is always 0, which does not change with the input signal. The input voltage of the transistor (field effect transistor) at the input terminal of the amplifier is constant, and the bias state is always maintained at the appropriate operating point.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;\"\u003e\u003cspan style=\"font-size: 22.0px;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003eGenerally, the output of a single LM8175 is 4A current, the official indicator, the driving sensitivity is low, and the large amount of speakers is useless with BTL, and the driving force will be overwhelmed. With parallel output, the driving current can be doubled to 8A current., so that the sound field is better, the medium and low frequencies are fuller, and the power is also improved\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;\"\u003e\u003cspan style=\"font-size: 22.0px;\"\u003ePCB size: 124X76 mm\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;\"\u003e\u003cspan style=\"font-size: 22.0px;\"\u003eWeight: about 166g\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;\"\u003e\u003cspan style=\"font-size: 22.0px;\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003eThe default main capacitor of the kit is the original UK NOVER 10000UF 35V, which is more durable than Nippon Chemical and Nikon. You need to weld the kit yourself, or you can choose the finished plate.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;\"\u003e\u003cspan style=\"font-size: 22.0px;\"\u003e\u003cstrong\u003eProduct Highlights:\u003cbr\u003e\n\u003cspan style=\"color: #ff0000;\"\u003e*\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"color: #0000ff;\"\u003eAdopting a good-sounding CG circuit architecture, the sound is very delicate and durable, and the midpoint is stable\u003c\/span\u003e\u003cbr\u003e\n\u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003e*\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"color: #0000ff;\"\u003eDouble-sided gold-plated military PCB is used, with good electrical conductivity and not easy to oxidize\u003c\/span\u003e\u003cbr\u003e\n\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003e*\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: #0000ff;\"\u003eThe output adds red copper pentoxide inductance to eliminate interference and clutter, and the sound quality is purer and more natural\u003c\/span\u003e\u003cbr\u003e\n\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003e*\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: #0000ff;\"\u003eJapanese Omron protection circuit, more secure to use\u003c\/span\u003e\u003cbr\u003e\n\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003e*\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: #0000ff;\"\u003eFull advanced component configuration (because there are many non-standard DALE resistors, the default is changed to the famous Beijing Military 718 copper pin resistor).\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003ePCB size \"123MMX75MM board is a double-layer immersion gold PCB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003cspan style=\"font-size: 24.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cstrong\u003eAfter decades of classics, why are we still playing with the LM1875 power amplifier circuit?\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cstrong\u003ePower range: AC12-AC22X2\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cstrong\u003eOutput power: 35W-8 ohms 65W 4 ohms\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cstrong\u003eImpedance range: 2-8 ohms\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e\u003cstrong\u003eFrequency response: 10HZ-40KHZ\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eBecause the price is low, the circuit is classic, and the sound is durable. Although the price is not high, the sound has courage and endless aftertaste!\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003eRecommended transformer\u003cbr\u003e\n\u003ca href=\"http:\/\/item.taobao.com\/item.htm?spm=a1z10.3-c.w4002-1582430503.15.UmBemY\u0026amp;id=7314354497\" target=\"_self\"\u003ehttps:\/\/item.taobao.com\/item.htm?spm=a1z10.3-c.w4002-1582430503.15.UmBemY\u0026amp;id=7314354497\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/TB2uvYwlFXXXXaLXXXXXXXXXXXX_!!88221699.jpg\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003cstrong\u003eRecommended radiator\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003cspan style=\"color: #222222;font-size: 14.0px;line-height: 1.5;\"\u003ehttps:\/\/item.taobao.com\/item.htm?spm=a1z10.3-c.w4002-1582430503.23.nGEIH2\u0026amp;id=524757565205\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN01TYJAuC1OQBb4yiIW9_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN011OQBN36C2mHocRQ_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN011OQBN37nbQHpscG_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i3\/88221699\/O1CN011OQBN2u3b0EK9ee_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN011OQBN2CZF9F4fzc_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN011OQBN0sZcVzS6Pe_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/O1CN011OQBN21VMMNAbcv_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003c\/p\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/O1CN011OQBN38eyd4KW5C_!!88221699.jpg\" style=\"max-width: 750.0px;\"\u003e\u003c\/div\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003cspan style=\"font-size: 14.4444px;\"\u003eRefer to the wiring diagram, it is the same as the wiring of a single GC1875.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i4\/88221699\/TB2VhHnlFXXXXchXXXXXXXXXXXX_!!88221699.jpg\"\u003e\u003c\/div\u003e \u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003cdiv\u003e\u003cimg align=\"absmiddle\" referrerpolicy=\"no-referrer\" src=\"https:\/\/img.alicdn.com\/imgextra\/i1\/88221699\/TB2N96LnFXXXXXRXpXXXXXXXXXX_!!88221699.png\"\u003e\u003c\/div\u003e \u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"color: #000000;font-size: 14.4444px;line-height: 23.3333px;\"\u003e \u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n","brand":"GoMakerHive: Ignite Your Spark into a Blaze.","offers":[{"title":"A set of spare parts","offer_id":66601497493808,"sku":"4480774064456","price":35.42,"currency_code":"USD","in_stock":true},{"title":"A finished board","offer_id":66601497526576,"sku":"4480774064457","price":38.94,"currency_code":"USD","in_stock":true},{"title":"Finished plate with heat dissipation","offer_id":66601497559344,"sku":"4482549128713","price":41.29,"currency_code":"USD","in_stock":true},{"title":"1 double-sided gold-plated PCB (excluding components)","offer_id":66601497592112,"sku":"4648778357977","price":19.67,"currency_code":"USD","in_stock":true},{"title":"1 piece of matching radiator","offer_id":66601497624880,"sku":"4648778357978","price":22.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2367\/2112\/files\/O1CN01gENi411OQBd2ANbvF__0-item_pic.webp?v=1777040451","url":"https:\/\/gomakerhive.com\/products\/gc-version-lm1875-dual-core-parallel-amplifier-board-kit-double-sided-immersed-gold-board","provider":"GoMakerHive: Ignite Your Spark into a Blaze.","version":"1.0","type":"link"}