Fredenstein Hyperlifter 1, 1-Channel Level Amplifier, Single-channel in-line level amplifier for ribbon and dynamic microphones, Amplification of the microphone signal by up to +48 dB, Adjustable in 6 dB steps via rotary switch, Impedance: 150 Ohm to 6.6 kOhm (variably selectable), Power supply via +48V phantom power, XLR input and output, Dimensions: 112 x 58 x 45 mm, Weight: 280 g