Millenium IP 3, 1-Channel Level Amplifier, For dynamic microphones or passive ribbon microphones, Boost optionally +12 dB or +25 dB, Variable input impedance adjustable between 150 and 15 kOhm, Switchable low cut, Adjustable output level, Dimensions (W x H x D): 88 x 40 x 150 mm@+*Note:* 48 V phantom power is required for operation - phantom power is not available at the output.