Features: Experience powerful sound performances with the HiFi digital amplifier board, delivering up to 220W per channel for robusts sound in high demand sound systems. Equipped with the TPA3251 chip, this amplifier ensures clear and authentics sound signals, offering a impressive audiophile grade sound experience with efficient energy conversion and low heat output. For audiophiles seeking HiFi sound, home theater enthusiasts desiring cinema like sound, and DJs or live performers requiring top qualitys sound equipment. Perfect for enhancing home entertainment systems, supporting high powered needs in homes theaters, music playback setups, and professional sound systems for large venues and event. Its compacts designs allows easy integration into various sound systems without occupying excessive space, making it a versatiled choice for upgrading your sound experience. Specifications: Component:PCB Size:Approx.12x7.3x2.8cm/4.72x2.87x1.1inch Product model: XY-AP2202 Power amplifier chip: A 3251D2 Power supply: DC12-36V/10A or above. Stereo output power: 20W+20W @4/12VDC 70W+70W @4/24VDC 30W+30W @8/24VDC 80W+80W @8/36VDC 160W+160W @4/36VDC 220W+220W @3/36VDC Mono (parallel) output power: 20W @4/12VDC 30W @8/24VDC 70W @4/24VDC 80W @80/36VDC 160W @4/36VDC 350W @2/36VDC Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings. Package includes: 1pcs Digital Amplifier Board