Features: A902 Amplifier Preamp Board ensuring stable sound amplification for reduced distortion for home theaters or professional sound systems. Crafted with PCB, this preamp module delivers superior conductivity, and durability compared to standard circuit board. Ideal for sound engineers, and audiophiles seeking to upgrade amplifiers or integrate boosting solution into electronic projects. Perfectly suited for sound setups, stage equipment, conference systems, and car sound modifications where consistent integrity and adaptability are critical. Simplifies installation across diverse applications, while rigorous stress testing stable operational under fluctuating power input and demanding environments. Specifications: Component:PCB Size:Approx.50x30mm/1.97x1.18inch Product model: A902 Chip model: NE5532 Power supply: 12-30V Package Includes: 1 Set Preamplifier Board note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.