Optical converter to 2xRCA

LC filter connected to the output of the DC power supply with a voltage from 0 to 50 V and a maximum current of 2 A. It reduces voltage ripple and interference caused by the power supply

An audio module with a DAC converter and a stereo amplifier designed to work with the Raspberry Pi. Adafruit 3346

Audio module with DAC and mono amplifier designed to work with TinyPICO and TinyS2. Pimoroni SHIELD-AUDIO-I2S

Stereo audio amplifier with Bluetooth 5.0 communication. It can be powered with the voltage from 5 to 24 V and has two outputs with a power of 100 W. ZK-1002L

Stereo audio isolator based on two transformers. It allows to eliminate noise in the audio path resulting from different ground resistances of the sound source and the receiver. XH-M372

Class D mono audio amplifier module with MAX98357 chip. It can work with a 4 to 8 Ω loudspeaker with a power of up to 3 W and communicates via the I2S interface. modMAX98357

Gravity: UART MP3 Voice Module is an MP3 sound player module with a built-in 8 MB memory. It is powered by 3.3-5V and controlled by the UART interface. DFRobot DFR0534

Class D digital audio amplifier with Bluetooth 5.0 module. It has two channels with a power of 300 W and can work with 4 Ω speakers. Powered by alternating voltage 230 V

Audio amplifier based on the TPA3116 chip with a power of 100 W with an active low-pass filter. Dedicated to the bass column (subwoofer)

2-channel stereo audio mixer in a metal housing. It has four outputs, on which the summed signal from 2 inputs is available. It is powered with the voltage from 5 to 19 V

The PAM8403 class D stereo digital audio amplifier module is equipped with Bluetooth communication. The system allows you to connect two speakers with an impedance from 4 to 8 Ω and a power of 3 W

KAmodMIC_ELECTRET is a module with microphone KPCM6B type. Thanks to embedded amplifier with hundredfold amplification of signal, output voltage can be measurement in microcontroller with using e.g. ADC converter.

Audio receiver with Bluetooth 4.2 module. It is powered by a microUSB connector or a battery and is equipped with a charging circuit

A module with an active low-pass filter based on NE5532 systems. Dedicated to the bass column (subwoofer)

Module with electret microphone and LM393 amplifier that will allow you to detect voice, clap, slam doors and other sounds using analog or digital output

MEMS microphone module that will allow voice detection, sound recording or audio transmission. It communicates via an I2S interface. DFRobot SEN0526