If your Samsung soundbar isn't powering on, the power adapter (BN44-00862A) may be the source of the issue. This 24V AC/DC adapter is a genuine component suitable for a range of Samsung models, including the HW-K470, HW-KM45C, and HW-K650. Restore power to your home audio system with this reliable adapter. Before purchasing, check your device's model number for compatibility.