The Audio-Technica CP8506 4CH Phantom Power Supply provides 48V phantom power for up to 4 microphones. It's line-powered and allows you to use remote-powered microphones with systems that do not supply phantom power. You'll have a constant voltage source, even with a heavily loaded input. The regulator IC is internally protected to prevent overheating even if shorted. The rugged steel case is finished in enamel and provides shielding from electrostatic interference. Output current: 14mA per channel. Noise: -71dBV.