Optical converter to 2xRCA

Module with active low-pass filter. Dedicated to the bass column (subwoofer)

WM8960 stereo codec module with driver for 1W class D speakers and headphones. It uses the I2S interface and the I2C bus to configure the system. SparkFun BOB-21250

Class D digital audio amplifier with Bluetooth 5.0 module. It has two channels with a power of 50 W and can work with speakers from 4 to 8 Ω. It is powered with the voltage ranging from 9 to 24 V

Digital audio level indicator consisting of 56 LEDs per channel. Powered by a micro USB connector, it can work with audio players, telephones or computers or display the audio level on the basis of reading from the built-in microphone

Gravity: Voice Recorder Module is a sound recording module powered by 5V voltage. It can store sounds up to 10 seconds long. DFRobot SEN0197

Class D digital audio amplifier. It has two channels with a power of 160 W and can work with speakers from 4 to 8 Ω. It is powered with the voltage from 15 to 36 V.

Adafruit 2342

4-channel stereo audio mixer in a metal housing. It has one output, on which the summed signal from 4 inputs is available. It is powered with the voltage from 5 to 12 V.

Bluetooth audio receiver module enclosed in a housing that enables wireless transmission of sounds. It is equipped with a PCB antenna, microphone, 3.5 mm audio jack and control buttons

TPA3110 digital stereo audio amplifier module. The system allows you to connect two speakers with an impedance from 4 Ω to 8 Ω and a power of 15 W

The preamplifier module with the NE5532 chip offers high sound quality in a compact form with dimensions of 96 x 39 mm. Powered by DC 12-24V, it is perfect for everyone who looking for a solid and reliable solution at an affordable price

Gravity: Analog Sound Sensor is a sound sensor with Gravity analogue output. The module can be supplied with 3.3 ... 5V voltage. DFRobot DFR0034

Module with a passive buzzer designed for M5Stack sets. It is equipped with a Grove connector and is controlled by a square signal. M5Stack U132

Audio module that allows you to play sounds from a USB memory, microSD card, via Bluetooth or FM radio. It is equipped with a microphone, 3.5 mm audio jack and control buttons

This breakout board, based on the best-of-class Si4713, is an all-in-one stereo audio FM transmitter that can also transmit RDS/RBDS data. Adafruit 1958

Two-way speaker crossover with a division frequency of 2500Hz/3000Hz. Works with 4 to 8 ohm speakers and offers up to 250 watts of power