{"product_id":"module-amplificateur-audio-pam8403","title":"PAM8403 2 × 3 W audio amplifier module — class D, 5 V USB","description":"\u003ch2 style=\"color:#111213;font-size:1.6em;\"\u003ePAM8403 amplifier: audible sound from a 5 V retro build\u003c\/h2\u003e\n\u003cp\u003eIn a DIY arcade cabinet, a handheld console audio mod or an SBC-based build, the original audio output can't drive a speaker. This \u003cstrong style=\"color:#0097ac;\"\u003ePAM8403 class D amplifier\u003c\/strong\u003e module takes a weak analogue signal and boosts it to \u003cstrong style=\"color:#0097ac;\"\u003e2 × 3 W\u003c\/strong\u003e, with no transformer and no separate power supply: \u003cstrong style=\"color:#0097ac;\"\u003e5 V USB\u003c\/strong\u003e is enough.\u003c\/p\u003e\n\n\u003ch3 style=\"color:#111213;font-size:1.35em;\"\u003eWhat it does\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong style=\"color:#0097ac;\"\u003eTwo 3 W channels\u003c\/strong\u003e: rated power of 3 W per channel into a 3 Ω load at 5 V, well above what a small shell speaker needs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong style=\"color:#0097ac;\"\u003eFilterless class D\u003c\/strong\u003e: high efficiency, almost no heat build-up, no heatsink needed in a closed enclosure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong style=\"color:#0097ac;\"\u003e2.5 to 5.5 V supply\u003c\/strong\u003e: connects to the 5 V already present in your build — USB port, cabinet regulator, battery boosted to 5 V.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong style=\"color:#0097ac;\"\u003eTiny footprint\u003c\/strong\u003e: a module-sized board, designed to slip into a shell or be fixed to the bottom of an enclosure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color:#111213;font-size:1.35em;\"\u003eWhat it doesn't do\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIt's not a digital converter: the input is \u003cstrong\u003eanalogue only\u003c\/strong\u003e. No HDMI, optical, USB audio or Bluetooth input.\u003c\/li\u003e\n  \u003cli\u003eIt's not a finished product: no case, no speakers, no cables, no power supply. The board comes bare.\u003c\/li\u003e\n  \u003cli\u003eSoldering is required — input, output and power are all connected with a soldering iron.\u003c\/li\u003e\n  \u003cli\u003eNo remote adjustment, no remote control, no equaliser. Volume is set upstream, at the source.\u003c\/li\u003e\n  \u003cli\u003eActual power depends on speaker impedance and the quality of the 5 V supply: a noisy supply can be heard through the speaker.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color:#111213;font-size:1.35em;\"\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eThe module is generic: it amplifies any low-level analogue audio source powered near a 5 V supply. Typical retro use cases: DIY arcade cabinet or bartop, a gaming enclosure built around a single-board computer, replacing a dead audio stage in a custom build, adding an external speaker to a workshop machine. It doesn't replace an original part listed for a specific console: it isn't an official spare part, but a component you integrate yourself. Recommended speakers: 4 Ω or 8 Ω, 3 W or more.\u003c\/p\u003e\n\n\u003ch3 style=\"color:#111213;font-size:1.35em;\"\u003eSkill level required\u003c\/h3\u003e\n\u003cp\u003eIntermediate. You need to be able to solder cleanly onto pads, identify a ground and locate a 5 V point in your build. Have a fine-tip soldering iron, solder, thin flexible wire and a multimeter ready to check the supply voltage before powering on for the first time. Reversing the polarity of the power supply destroys the module.\u003c\/p\u003e\n\n\u003ch3 style=\"color:#111213;font-size:1.35em;\"\u003eIn the box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 PAM8403 2 × 3 W class D amplifier board\u003c\/li\u003e\n  \u003cli\u003eSupplied without cable, speaker or power supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"margin-top:16px;\"\u003eRead before ordering: \u003ca href=\"https:\/\/fun-esports.com\/en\/collections\/atelier-modding\" style=\"color:#0097ac;\"\u003eWorkshop \u0026amp; Modding\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eDelivery in 10 to 18 days · ships within 3 to 5 days · 2-year legal guarantee of conformity · 14-day returns.\u003c\/p\u003e","brand":"Fun-Esports","offers":[{"title":"Default Title","offer_id":54540433850701,"sku":"1005008554786164-Default Title","price":13.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7636\/5133\/files\/module-amplificateur-audio-pam8403-2-3-w_121865c5-fb91-4c55-b962-54ba34feb4b0.png?v=1787318541","url":"https:\/\/fun-esports.com\/en\/products\/pam8403-audio-amplifier-module","provider":"Fun-Esports","version":"1.0","type":"link"}