Professional Line-Driver Frequency response: 15Hz - 20kHz +/- 1dB THD: 0,02% @ 1kHz IMD: 0,02% @ 1kHz S/N Ratio: 110dB Inputimpedancy: 100 kOhm Outputimpedancy: 30 Ohm Max. Input- and Outputpower: 8V RMs Dimensions (LxWxH): 132 x 76 x 32mm