The Audio Amplifier Modules are small electronic boards that boost audio signals for speakers, microphones, and wireless audio systems. These amplifier boards are great for DIY speakers, intercom systems, and embedded audio projects. They include Bluetooth audio boards, MP3 player modules, and AGC microphone amplifier circuits. We guarantee the best price and fast delivery all over India.
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What are Audio Amplifier Modules?
Audio Amplifier Modules are ready-to-use circuit boards that take a weak audio signal from a microphone, Bluetooth input, or MP3 source and boost it to a level that can drive a speaker directly. They use integrated amplifier ICs internally, removing the need to design complex analog circuits from scratch. A common example in Indian college electronics projects is using a PAM8403 amplifier board to drive a small speaker for a voice announcement system built on Arduino.
Audio Amplifier Modules Available at StemVolt
- Bluetooth 3.0 Audio Receiver Module — Wireless bluetooth audio board for streaming music directly to a speaker from a phone
- DF Player Mini MP3 Module — Compact MP3 player module with onboard DAC for playing audio files from SD card with Arduino
- MAX9814 Microphone AGC Amplifier — Auto gain control microphone amplifier circuit for clear audio capture in voice projects
- PAM8403 Stereo Amplifier Board — 3W stereo amplifier board price-friendly option for portable speaker and intercom builds
- TDA2822 Amplifier Module — Dual channel audio amplifier board for driving headphones and small speaker pair simultaneously
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How to Choose the Right Audio Amplifier Module
Choose based on your audio source and output requirement. For wireless music streaming builds, a Bluetooth audio board with an integrated amplifier combines both functions in one module. For Arduino-triggered audio playback, the DF Player Mini handles MP3 files directly from SD card without any extra processing. For microphone input projects, an AGC amplifier module automatically adjusts gain for consistent volume. One practical tip: always match the amplifier board's output power rating to your speaker's power handling capacity, as connecting an underpowered amplifier to a large speaker produces distorted audio while an overpowered one can damage small speakers.
Why Buy Audio Amplifier Modules from StemVolt
All products at StemVolt are genuine and quality tested before dispatch. Based in Rajasthan, the store ships fast pan-India with a best-price guarantee.