Description: Experience enhanced audio quality with the amplifier digital module. This power amplifier board features high and low frequency knobs for customizable sound, delivering a layered audio experience with powerful bass. Equipped with dual amplifier chips, it supports a wide voltage input range of 18-36V and offers a high power output. The amplifier board ensures safe operation with built-in protection mechanisms including short circuit, under voltage, over voltage, and clipping protection. Enjoy convenient control with a mechanical button for quick shutdown and stepless volume adjustment for precise tuning. Elevate your audio setup with the amplifier board. Item Name: Amplifier Board Material: Plastic Input Method: AUX + Bluetooth-compatible + U Disk + USB Sound Card Number of Channels: 2.1 Channels Bluetooth-compatible Version: 5.1 Power Amplifier Chip: TPA3255 Compatible Speakers: Left Right Channels 30-220W, 3-8 Omega, Subwoofer 30-350W 2-8 Omega Flexible Power Supply: DC16-38V, ≧10A Output Power: Left Right Channels ≦ 220W, Subwoofer ≦ 350W Switch Mode: Mechanical Switch) Voltage Gain: 30dB Features: High Compatibility, Wide Voltage Input, Practical Size Details: L: 14.1cm/5.55", W: 13.1cm/5.16", H: 2.7cm/1.06" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Amplifier Board 1 x Screwdriver Customize your sound experience with the amplifier board's high and low frequency knobs. Achieve layered audio and powerful bass for a more immersive listening journey. The amplifier board is equipped with multiple safeguards, including short circuit, under voltage, over voltage, and clipping protection. Enjoy peace of mind while experiencing high-quality audio performance. Benefit from the superior performance of two amplifier chips integrated into the amplifier board. Experience wide voltage input support and impressive power output capabilities. Simplify your audio control with the mechanical button shutdown feature of the power amplifier board. Enjoy instant shutdown without delays, along with stepless volume adjustment for precise sound tuning. With a 30dB high gain design, the power amplifier board ensures efficient power output for exceptional audio quality. Elevate your listening experience with this versatile and user-friendly amplifier module.