NE5532 4-channel preamp amplifier board with 5W DC 12V-15V power supply

This audio amplifier circuit offers exceptional versatility and performance. Thanks to its variable gain design, you can easily adjust the amplification to suit your needs. The default gain is 4.7x, and you can customize it simply by changing the 47K resistor near the op-amp: use a 22K resistor for a 2.2x gain, or a 100K resistor for a powerful 10x gain. It stands out for its excellent audio performance, made possible by the use of high-quality components: high-performance inductors and capacitors that guarantee clear and precise sound reproduction. Its practical design is a major advantage. The board is compact, lightweight, and small in size, which greatly facilitates wiring and integration into your projects or installations. It is powered by a DC voltage between 12V and 15V, with a recommendation to use a transformer with a power rating of at least 5W for stable and long-lasting operation. The construction is based on a high-quality printed circuit board (PCB), ensuring reliability, stability, and longevity. This robustness is complemented by good maintainability and interchangeability of components. You will receive: 1 x Amplifier Board (Chip Driver Board). Main Specifications: * Item Type: Amplifier Board * Material: Printed Circuit Board (PCB) * Operating Voltage: DC 12V-15V * Recommended Transformer Power: More than 5W