Unfortunately, many homes have "dirty" power that can create audio signal noise for your expensive audio components, but with the black DC Block 6 Power Conditioner from Audiolab, you can clean that power to ensure optimal audio performance. You simply plug the DC Block 6 into the wall and then plug your devices into the DC Block 6. Power cords for everything are included. This power conditioner also has a hi-end filtering circuit for removing RFI and EMI noise that could come from power supplies within your devices and surrounding Wi-Fi and Bluetooth signals. This device is ideal for any component that uses AC power, such as integrated amplifiers, CD players, preamps, and more.