Input Impedance: 1 Megohm
Equivalent Input Noise: -110 dB
Output Impedance: 1 Kilohm
Maximum Gain: 60 dB
Filter: 6 dB/octave low-pass
Power Requirements: 9V battery or external DC power supply (RPS-1)
Battery Consumption: 7.8 mA/100 hours
Height: 3-1/8" (79.4mm)
Depth: 4-1/16" (103.2 mm)
Width: 3-1/2" (88.9 mm)
Weight: 1.7 lbs (0.8 Kg)
Shipping Weight: 2.0 lbs (0.9 Kg)