Preamplifier module with NE5532 chip

Digital audio amplifier dedicated to woofers. It has two channels 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 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

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

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

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.

LM386 audio amplifier module in a set with a loudspeaker. The board is equipped with a Grove connector and is controlled by a PWM signal. Seeed Studio 101020853

TDA2030A mono digital audio amplifier module. The system allows you to connect one loudspeaker with an impedance from 4 to 8 Ω and a power of 18 W

Stereo audio preamplifier based on two uPC4570C operational amplifiers. It allows you to control the bass, treble and volume level

100 W audio signal converter that reduces the speaker signal from the player to the level of RCA inputs. It allows you to connect the radio to an external power amplifier

Stereo audio amplifier based on the TDA7498 chip. It can be powered with the voltage from 20 to 36 V and has two 100 W outputs

The TDA7377 2x35W audio amplifier module is a compact device providing powerful stereo sound with a power of 70W (2x35W per channel). With a wide voltage range, a variety of speaker configurations and compact dimensions, it is an ideal solution for improving sound quality in a variety of audio applications.

Class AB audio amplifier with three output channels. It can be powered with AC voltage from 8 to 18 V and has two outputs with a power of 18 W (left and right) and one with a power of 20 W (bass)

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

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

Zeenko ZK04-UM is a compact low-noise RF amplifier operating in the 100 kHz – 4 GHz range, powered via USB-C, featuring high linearity and low noise levels. Ideal for amplifying antenna signals or as a preamplifier for spectrum analyzers such as the tinySA ULTRA, especially above 3.5 GHz.

Class A audio amplifier with one channel, 25 W. Built on the popular design of J. Hood from 1969. The set includes 2 pieces