{"product_id":"pam8403-digital-amplifier-board2-3w-class-d","title":"PAM8403 digital amplifier board2*3W Class D","description":"\u003cdiv class=\"n6owBd awi2gc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-hveid=\"CAIIAAgKEAA\" data-complete=\"true\" data-processed=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003eThe \u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003ePAM8403\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e is an \u003cmark class=\"HxTRcb\" data-sfc-root=\"c\" data-wiz-uids=\"LhRopb_n\" data-sfc-cb=\"\" data-ved=\"2ahUKEwjPjMKfg4WVAxVoVaQEHYw-A_oQuJAPeggIAggACAoQAQ\" data-complete=\"true\" data-sae=\"\" data-sfc-inited=\"2\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 500; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003c!--qkimaf LhRopb_m\/HugV6--\u003e\u003c!--cqw1tb LhRopb_m\/HugV6--\u003eultra-compact, high-efficiency \u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e2-channel x 3W Class D digital audio power amplifier board\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/mark\u003e. It is widely used for DIY portable speakers, Arduino or microcontroller audio projects, and USB-powered sound systems.\u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-sfc-inited=\"2\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 20px; font-weight: 600; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003eTechnical Specifications\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cul class=\"KsbFXc U6u95\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-sfc-cb=\"\" data-hveid=\"CAIIAAgMEAE\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\n\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003eOutput Power\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: 3W + 3W (Dual-channel stereo into a 4Ω load at 5V).\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003cspan data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-sfc-cb=\"\" data-hveid=\"CAIIAAgMEAI\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\n\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003eOperating Voltage\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: 2.5V to 5.5V DC (Highly compatible with 5V USB power or a single 3.7V Lithium-ion battery).\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003cspan data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-sfc-cb=\"\" data-hveid=\"CAIIAAgMEAM\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\n\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003eEfficiency\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: Up to 90%, meaning it generates very little heat and requires no bulky heatsink.\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003cspan data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-sfc-cb=\"\" data-hveid=\"CAIIAAgMEAQ\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\n\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003eArchitecture\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: Filterless Class D design allows direct speaker connection without external low-pass LC filters.\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003cspan data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-sfc-cb=\"\" data-hveid=\"CAIIAAgMEAU\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\n\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003eSafety Features\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: Short-circuit protection, over-temperature shutdown, and under-voltage lockout.\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003c!--TgQPHd||[]--\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-sfc-inited=\"2\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 20px; font-weight: 600; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003ePin Configuration Guide\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cul class=\"KsbFXc U6u95\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-sfc-cb=\"\" data-hveid=\"CAIIAAgQEAE\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\n\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003ePower Input\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: \u003ccode dir=\"ltr\" class=\"KDcb0c\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: monospace; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 1px solid rgb(44, 46, 53);\"\u003e+5V\u003c!--TgQPHd||[]--\u003e\u003c\/code\u003e (or \u003ccode dir=\"ltr\" class=\"KDcb0c\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: monospace; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 1px solid rgb(44, 46, 53);\"\u003eVCC\u003c!--TgQPHd||[]--\u003e\u003c\/code\u003e) and \u003ccode dir=\"ltr\" class=\"KDcb0c\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: monospace; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 1px solid rgb(44, 46, 53);\"\u003eGND\u003c!--TgQPHd||[]--\u003e\u003c\/code\u003e.\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003cspan data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-sfc-cb=\"\" data-hveid=\"CAIIAAgQEAI\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\n\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003eAudio Input\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: \u003ccode dir=\"ltr\" class=\"KDcb0c\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: monospace; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 1px solid rgb(44, 46, 53);\"\u003eL\u003c!--TgQPHd||[]--\u003e\u003c\/code\u003e (Left Channel Input), \u003ccode dir=\"ltr\" class=\"KDcb0c\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: monospace; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 1px solid rgb(44, 46, 53);\"\u003eR\u003c!--TgQPHd||[]--\u003e\u003c\/code\u003e (Right Channel Input), and \u003ccode dir=\"ltr\" class=\"KDcb0c\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: monospace; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 1px solid rgb(44, 46, 53);\"\u003eGND\u003c!--TgQPHd||[]--\u003e\u003c\/code\u003e (Audio Ground reference).\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003cspan data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\" data-sfc-cp=\"\" data-sfc-root=\"ep\" data-sfc-cb=\"\" data-hveid=\"CAIIAAgQEAM\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\n\u003cspan class=\"T286Pc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003eSpeaker Outputs\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: Separate \u003ccode dir=\"ltr\" class=\"KDcb0c\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: monospace; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 1px solid rgb(44, 46, 53);\"\u003eL+\u003c!--TgQPHd||[]--\u003e\u003c\/code\u003e, \u003ccode dir=\"ltr\" class=\"KDcb0c\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: monospace; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 1px solid rgb(44, 46, 53);\"\u003eL-\u003c!--TgQPHd||[]--\u003e\u003c\/code\u003e and \u003ccode dir=\"ltr\" class=\"KDcb0c\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: monospace; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 1px solid rgb(44, 46, 53);\"\u003eR+\u003c!--TgQPHd||[]--\u003e\u003c\/code\u003e, \u003ccode dir=\"ltr\" class=\"KDcb0c\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: monospace; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 1px solid rgb(44, 46, 53);\"\u003eR-\u003c!--TgQPHd||[]--\u003e\u003c\/code\u003e pins to hook up individual 4Ω to 8Ω small speakers.\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/li\u003e\n\u003c!--TgQPHd||[]--\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"Fsg96\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-sfc-inited=\"2\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e\u003c!--TgQPHd||[]--\u003e\u003c\/div\u003e\n\u003cdiv class=\"otQkpb\" aria-level=\"3\" role=\"heading\" data-animation-nesting=\"\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-processed=\"true\" data-sae=\"\" data-complete=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 20px; font-weight: 600; margin: 24px 0px 12px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003eCritical Usage Warnings\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n6owBd awi2gc\" data-sfc-cp=\"\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-hveid=\"CAIIAAgcEAA\" data-complete=\"true\" data-processed=\"true\" aria-owns=\"action-menu-parent-container\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 12px 0px 16px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e⚠️ \u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003eDo Not Share Speaker Grounds\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: The left and right channel \"negative\" (\u003ccode dir=\"ltr\" class=\"KDcb0c\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-sae=\"\" data-copy-service-computed-style=\"font-family: monospace; font-size: 14px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 1px solid rgb(44, 46, 53);\"\u003e-\u003c!--TgQPHd||[]--\u003e\u003c\/code\u003e) speaker outputs \u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003emust never be connected together\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e or wired to a common ground. Doing so will instantly destroy the PAM8403 IC.\u003cbr data-sfc-root=\"c\" data-sfc-pl=\"||[]\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e⚠️ \u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003eVoltage Limits\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: Never exceed a 5.5V DC supply. Do not power the module using four standard AA dry cells without a regulator, as new batteries can exceed 6.0V and burn out the chip.\u003cbr data-sfc-root=\"c\" data-sfc-pl=\"||[]\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003e⚠️ \u003cstrong class=\"Yjhzub\" data-sfc-root=\"c\" data-sfc-cb=\"\" data-complete=\"true\" data-processed=\"true\" data-copy-service-computed-style=\"font-family: Google Sans, Arial, sans-serif; font-size: 16px; font-weight: 600; margin: 0px; text-decoration: none; border-bottom: 0px rgb(230, 232, 240);\"\u003eConnect Speakers First\u003c!--TgQPHd||[]--\u003e\u003c\/strong\u003e: Always connect the speaker loads before applying power to prevent chip damage.\u003c\/div\u003e","brand":"K-TECHNICS","offers":[{"title":"Default Title","offer_id":42876535799879,"sku":null,"price":100.0,"currency_code":"KES","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/7637\/2039\/files\/PAM8403_board_1.webp?v=1781381470","url":"https:\/\/www.ktechnics.com\/products\/pam8403-digital-amplifier-board2-3w-class-d","provider":"K-TECHNICS","version":"1.0","type":"link"}