JK 2 Specification Sheet System Acoustic Performance -1dB Response 10Hz to 40kHz Dynamic Range >130dB Total Harmonic Distortion <0.005% Signal Input Input Channels 2x 1/4″ Jack + 2x RCA Input Impedance 2x 1MΩ / 10KΩ Max. Input voltage 1V / 5V / 20V peak Signal Output Signal Output Channels 2x