{"product_id":"max98357a-stereo-i2s-audio-amplifier-module","title":"MAX98357A Stereo I2S Audio Amplifier Module Dual Channel","description":"\u003cp\u003eAdd left and right speaker output to your next digital audio project with this dual-channel MAX98357A I2S amplifier module. It combines two MAX98357A amplifier chips on one board, providing stereo amplification for two passive speakers.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e⚠️Incoming stock — expected 18–22 November 2026.\u003c\/strong\u003e Order now for dispatch once stock arrives. Arrival dates are estimates.\u003c\/p\u003e\r\n\u003cp\u003eSuitable for internet radios, desktop speakers and other audio projects using an ESP32, Raspberry Pi or another controller configured to output compatible I2S audio.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eSoldering required:\u003c\/strong\u003e supplied as the unsoldered version, with connection parts supplied loose.\u003c\/p\u003e\r\n\u003ch3\u003eFeatures\u003c\/h3\u003e\r\n\u003cp\u003e• Two amplifier channels on one PCB for left and right audio.\u003cbr\u003e• Digital I2S input with integrated digital-to-analogue conversion and Class D amplification.\u003cbr\u003e• Shared audio data and clock connections for both channels.\u003cbr\u003e• Separate speaker output pairs for straightforward stereo wiring.\u003cbr\u003e• No separate master clock (MCLK) required.\u003c\/p\u003e\r\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\r\n\u003ctable\u003e\r\n\u003cthead\u003e\r\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\r\n\u003c\/thead\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eProduct code\u003c\/th\u003e\r\n\u003ctd\u003eMAX98357A-I2S-STEREO-AMP-NZ\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAmplifier configuration\u003c\/th\u003e\r\n\u003ctd\u003eDual MAX98357A — two channels\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAudio input\u003c\/th\u003e\r\n\u003ctd\u003eStandard I2S digital audio\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSupply voltage\u003c\/th\u003e\r\n\u003ctd\u003e2.5–5.5 V DC\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSpeaker loads\u003c\/th\u003e\r\n\u003ctd\u003e4 Ω or 8 Ω passive speakers; one per channel\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOutput power reference\u003c\/th\u003e\r\n\u003ctd\u003e3.2 W per channel at 5 V into 4 Ω at 10% THD+N*\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAudio data\u003c\/th\u003e\r\n\u003ctd\u003e16-bit, 24-bit or 32-bit I2S\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSample rates\u003c\/th\u003e\r\n\u003ctd\u003eSupported I2S rates from 8–96 kHz\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaster clock\u003c\/th\u003e\r\n\u003ctd\u003eNot required\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAssembly\u003c\/th\u003e\r\n\u003ctd\u003eSoldering required for headers and terminal blocks\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eApplications\u003c\/th\u003e\r\n\u003ctd\u003eInternet radios, stereo speaker projects, embedded audio and electronics prototyping\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003cp\u003e\u003cem\u003ePower is a typical MAX98357A chip reference figure, not a measured continuous rating for this assembled board. THD+N means total harmonic distortion plus noise. Output at lower distortion is lower; usable power depends on the supply, speakers and thermal conditions.\u003c\/em\u003e\u003c\/p\u003e\r\n\u003ch3\u003eConnection and use\u003c\/h3\u003e\r\n\u003cp\u003eWith power disconnected, solder the required connectors and connect your controller’s I2S data output to DIN. Connect the corresponding bit clock and left\/right clock signals, plus a common ground. Configure the controller for stereo I2S output and start at low volume.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eSpeaker wiring:\u003c\/strong\u003e connect each speaker only across its own channel’s positive and negative outputs. Neither speaker terminal is ground. Do not join the channels, connect a speaker output to ground, or connect the outputs to headphones, an AUX input or another amplifier.\u003c\/p\u003e\r\n\u003cp\u003eUse a suitable DC supply within the specified range. Do not connect this module directly to mains power.\u003c\/p\u003e\r\n\u003ch3\u003ePackage contents\u003c\/h3\u003e\r\n\u003cp\u003e• 1 × Dual-channel MAX98357A I2S stereo amplifier module.\u003cbr\u003e• Loose pin headers and speaker terminal blocks for soldering.\u003c\/p\u003e\r\n\u003cp\u003eSpeakers, controller, connecting wires and power supply are not included.\u003c\/p\u003e\r\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\r\n\u003cp\u003e\u003cstrong\u003eHow does this differ from the single-channel MAX98357A module?\u003c\/strong\u003e\u003cbr\u003eThis board combines two amplifier channels, allowing separate left and right speakers to reproduce a stereo source.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eWill it work with an ESP32 or Raspberry Pi?\u003c\/strong\u003e\u003cbr\u003eIt can be used with a compatible I2S output and suitable software configuration. Wiring and audio setup are required; it is not a USB audio adapter.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eCan I connect a phone’s headphone output or use Bluetooth?\u003c\/strong\u003e\u003cbr\u003eThere is no analogue audio input or built-in Bluetooth receiver. Audio must come from a compatible I2S source.\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eHow do I control the volume?\u003c\/strong\u003e\u003cbr\u003eAdjust the digital audio level in your controller’s software. This module does not include a volume knob.\u003c\/p\u003e\r\n\u003ch3\u003ePeople also search for\u003c\/h3\u003e\r\n\u003cp\u003eDual MAX98357A amplifier, stereo I2S amplifier board, ESP32 stereo audio module, Raspberry Pi I2S speaker amplifier, two-channel Class D amplifier.\u003c\/p\u003e","brand":"Techexpress NZ","offers":[{"title":"Default","offer_id":50919338115170,"sku":"MAX98357A-I2S-STEREO-AMP-NZ","price":14.89,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1907\/5887\/files\/01-MAX98357A-Stereo-Hero-Square_TUU0ZJ2SGIC3.png?v=1794167091","url":"https:\/\/www.techexpress.co.nz\/products\/max98357a-stereo-i2s-audio-amplifier-module","provider":"Techexpress NZ","version":"1.0","type":"link"}