TPA3110 2x15W digital audio amplifier with Bluetooth module

Module with audio amplifier and 8 Ω speaker with a power of 1 W. The board is equipped with a STEMMA connector. Adafruit 3885

Stereo Power Amplifier

Module with an AB class amplifier based on the Boomer® LM4853 system. It can work in two modes: mono (power 1.5 W, load 4 Ω) or stereo (power 300 mW, load 8 Ω). It has a potentiometer for power control and gain control for the left and right channel. SparkFun DEV-14475

Class A power amplifier with one channel (mono) with the power of 10 W. Built on the popular design of J. Hood from 1969.

Class D PAM8410 class D stereo digital audio amplifier. The system allows you to connect two speakers with an impedance from 4 to 8 Ω and a power of 15 W per channel

Audio module with DAC, amplifier, display and loudspeaker, designed to work with the Raspberry Pi. Pimoroni PIM485

Microphone preamplifier based on the AD828 chip. Powered with DC voltage from 9 V to 24 V or AC in the range from 8 V to 16 V

Digital mono audio amplifier based on the HXJ8002 chip. It has one channel with a power of 3 W and can work with speakers from 2 to 8 Ω. It is powered with the voltage from 2 V to 5.5 V

Digital audio amplifier dedicated to woofers. It has one channel with a power of 50 W each and can work with speakers from 4 to 8 Ω. It is powered with the voltage from 8 to 25 V

Class D PAM8304 stereo digital audio amplifier module. The system allows you to connect two speakers with an impedance from 4 to 8 Ω and a power of 3 W

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

Class A power amplifier with two channels, 45 W. Built on the popular J. Hood design from 1969

80 W audio signal converter that reduces the speaker signal from the player to the level of RCA inputs. It allows you to connect to an external power amplifier. TSK TD-22

The Class D digital audio amplifier module has two channels with a power of 30 W and can work with speakers from 4 to 8 Ω. Powered with the voltage ranging from 8 to 26 V. Bluetooth communication

Module containing TSH82 operational amplifier from STMicroelectronics. The system has two built-in amplifiers and each of them is available separately on the pins of the board as inverting amplifiers. Sparkfun BOB-14874

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 50 W. Assembly kit. ZK-502L