STEMMA Speaker - a module with an audio amplifier and a loudspeaker

The TDA2050 35W Audio Power Amplifier Module offers excellent output power, power supply flexibility, ease of integration, and user safety, making it an ideal solution for small audio projects

The TPA3116D2 amplifier module is a digital class D amplifier, offering 2x50W of power for stereo channels and 100W for the subwoofer, powered by 12V-24V. Thanks to the built-in NE5532 low-pass filter, it provides clean bass sound, and three potentiometers allow you to adjust the volume and cutoff frequency.

A new version of the popular mono amplifier kit, capable of amplifying audio from any source, such as MP3 players, using the NCP2890 with an output power of up to 1 W. The kit comes pre-assembled, including a jack cable, 8Ω speaker, and a battery holder for two AA batteries, allowing for quick start-up and ideal for portable DIY audio projects. Kitronik 2165B

Bluetooth stereo amplifier module that allows you to play music wirelessly from phones, tablets or computers. It automatically enters pairing mode after the first power supply and then connects to the last paired device, making it easy to use. The set includes 3W speakers with practical JST connectors, and the board is equipped with an integrated LiPo battery charging system, which allows powering from various sources, such as USB-C or battery. Kitronik 2182

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

Module dedicated to audio preamplifier with DIP8 socket for NE5532, OPA2134, OPA2604, or AD826 chips, without passive components.

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

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.

Zeenko ZK05-UM is a wideband low-noise amplifier with high gain and excellent linearity, operating in the 100 kHz – 6 GHz band. Powered via USB-C, it offers a low noise level and high overload resistance, making it a suitable choice for RF applications, antenna systems, and the input stages of spectrum analyzers.

Zeenko ZK06-UM is a precise, wideband RF amplifier for the 10 MHz – 6 GHz range, designed for high-sensitivity measurements with low interference. Powered via USB-C and optimized for use with devices such as the tinySA ULTRA, it offers high linearity and a low noise figure across the entire supported band.

Zeenko ZK09-UM is a compact low-noise RF amplifier operating in the 100 kHz to 10 GHz band, powered via USB-C and equipped with on-chip bias technology. It provides high linearity, stable gain, and a wide operating bandwidth, serving as an alternative to popular microwave amplifiers in laboratory and measurement applications.

Zeenko ZK05-BM is a low-noise, wideband RF amplifier with battery power, intended for operation in the 100 kHz – 6 GHz band. It offers stable gain, low distortion and a compact form, ideal for mobile, measurement and radio applications.

Zeenko ZK06-BM is a portable, low-noise RF amplifier with battery power, operating in the 10 MHz – 6 GHz band. It offers high gain stability, good overload resistance and full compatibility with spectrum analyzers, including tinySA ULTRA. Particularly recommended for measurement applications and antenna systems.

Zeenko ZK07-BM is a low-noise, wideband amplifier with very high gain, powered by a battery and intended for operation in the 30 MHz – 6 GHz band. Ideal for compensating losses in long antenna lines, it provides up to 43 dB of gain and very good noise performance. Recommended for installation as close to the antenna as possible in receiving and measurement paths.

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.