HXJ8002 mono audio amplifier 3W 2-5.5V

Audio preamplifier based on NE5532 chips. Equipped with an input selector function. Display and remote control included

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

Audio preamplifier based on the NE5532 chip. Powered with symmetrical DC voltage in the range from 9 to 15 V

Module dedicated to the audio preamplifier with DIP8 socket for NE5532, OPA2134, OPA2604 or AD826 chips

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

PAM8610 digital stereo audio amplifier module. The system allows you to connect two speakers with an impedance from 4 to 8 Ω and a power of 10 W

Audio amplifier module with three output channels. It can be powered with the voltage from 12 to 18 V and has two outputs with a power of 10 W (left and right) and one with a power of 20 W (bass)

Class D stereo sound amplifier based on the Texas Instruments TPA2016D2 circuit. It can work with 4 Ω speakers with power up to 2.8 W or 8 Ω with power up to 1.7 W in stereo mode. SparkFun DEV-20690

Audio module with speakers designed to work with the Raspberry Pi Pico. Waveshare Pico-Audio

Audio module with DAC, headphone amplifier and display, designed to work with the Raspberry Pi. It is based on the PCM5100A system and communicates via the I2S interface. Pimoroni PIM482

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 2 to 8 Ω. Powered with DC voltage from 12 to 24 V. Fosi Audio BT20A

Module with two operational amplifiers OPA627

Audio amplifier module with three output channels. It can be powered with the voltage from 18 to 24 VAC and has two outputs with a power of 100 W (left and right) and one with a power of 120 W (bass)

Stereo audio amplifier with Bluetooth 4.2 communication. It can be powered with the voltage from 19 to 24 V and has two outputs with a power of 80 W

Module with the PAM8904 controller designed specifically to control piezoelectric elements. The amplifier operates over a wide frequency range, up to 300 kHz, and allows for gain up to approximately 13 Vpp. Adafruit 5791

Zeenko ZK08-BM is a low-noise, wideband amplifier with a built-in battery, intended for operation in the 50 MHz – 8 GHz range. It provides high signal gain and compensation of losses in antenna paths. Thanks to its compact design and battery power, it performs excellently in mobile and measurement applications.