Input: mono ¼” jack
Input impedance: 1 Mohm/6Vpp
Output: mono ¼” jack
Output impedance: 470 ohm/6Vpp
Boost Gain level: from 0 to +20 dB
7-band graphic EQ (+/- 16dB): 40, 80, 250, 400, 1200, 2000, 4000 Hz
Power requirements: DC Input +9/+12VDC or standard 9V battery*
* 9V battery included