WONDOM DKT4X25AB DIY Kit AB Amplifier Module

With the DKT4X25AB, Wondom offers a DIY kit to assemble a 4x25W Class AB amplifier module yourself. Designed with a TDA7569BLV chip, this kit offers an output of 25W per channel at 4Ω and has been designed for use as a car radio amplifier. Equipped with a robust heatsink, the DKT4X25AB benefits from an optimal cooling design for increased durability and longevity.

With an exhaustive step-by-step assembly guide, this kit makes an excellent entry point into the world of DIY audio, giving you the satisfaction of building your own audio system.

Wondom DKT4X25AB: 4x25W amplification

Wondom's DKT4X25AB kit is designed to deliver 4x25W output into 4Ω when powered from 14.4V DC (the voltage delivered by a car battery), making it highly suitable as a car radio amplifier. This amplification is the result of a TDA7569BLV chip, incorporating a power stage based on BCD (Bipolar-CMOS-DMOS) technology.

Wondom DKT4X25AB: Simple integration

The DKT4X25AB kit has been designed with ease of use and installation in mind. Its terminals allow direct connection to the power supply, audio input, speaker outputs and external control systems. The inclusion of an auxiliary 3.5mm stereo input makes it even easier to connect to a wide range of sources, making the DKT4X25AB compatible with a wide range of devices. Furthermore, for added flexibility, this kit includes a gain control switch, giving you finer control over the output level.

Wondom DKT4X25AB: Gold-plated printed circuit board

Le kit DKT4X25AB est doté d'un PCB plaqué or, offrant une finition de qualité supérieure. Ce plaquage en or améliore non seulement la fiabilité des soudures, mais aussi la conductivité du circuit, permettant d’offrir une excellente résistance à la corrosion, ce qui est crucial pour la stabilité et la longévité de l'amplificateur.

Wondom DKT4X25AB: Heat sink

The DKT4X25AB amplifier board features an improved cooling system that includes a heat sink as large as the printed circuit board. This massive heatsink ensures efficient heat dissipation, even when the amplifier is operating at full capacity. As a result, the DKT4X25AB can maintain optimum performance over a wide temperature range from -10°C to 55°C.

Wondom DKT4X25AB: Installation guide

By following the DKT4X25AB step-by-step assembly guide, you'll find it easy to assemble this kit, just rely on the following steps and refer to the user manual for precise positioning of each component.

1. Install the SMD resistors:

Place the SMD resistors on the top and bottom faces of the board, respecting their respective positions.

2. Install ceramic capacitors and fuses:

Install the ceramic capacitors and fuses in the correct position. Ensure that the wires are correctly inserted and soldered.

3. Install electronic capacitors and through hole inductors:

Install the electrolytic capacitors and the inductor with the hole in the area provided. Make sure that the polarity of the (+) and (-) wires of the electrolytic capacitors is correct before soldering them.

4. Attach the TDA7569BLV chip to the heat sink:

Screw the IC to the heat sink using an M3 screw in the dedicated slot and secure firmly.

5. Installing the integrated circuit and the heat sink:

Once the integrated circuit is attached to the heat sink. Place the integrated circuit and the heat sink in the position provided on the board.

6. Install the remaining components:

Install the remaining components on the printed circuit board. Take care to align each component correctly and solder them securely.