2.0+ channels with a powerful output of 600W for left and right channels, plus a dedicated subwoofer signal output for enhanced performance. Bluetooth QCC3034 combined with ES9023 for high-end audio quality, supporting lossless decoding for superior sound clarity. Karaoke board expansion interface allows users to enjoy music and sing simultaneously, making it perfect for parties and gatherings. Subwoofer signal output interface enables easy pairing with a pure post amplifier board, facilitating the creation of a desired 2.1 channel audio system. Original TI operational amplifier NE5532 available in both SOP and DIP8 packages, allowing for easy replacement of high-temperature operational amplifiers. This audio amplifier system is designed for audiophiles seeking high-quality sound and versatility. With its robust power output and advanced Bluetooth capabilities, it ensures an immersive listening experience. The karaoke feature adds a fun element for social events, while the subwoofer output enhances response. The user-friendly design allows for easy upgrades and replacements, making it a reliable choice for any audio setup. Color: As Shown Material: plastic Package Contents: 1*Amplifier Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.