The Duopass is a passive direct box designed for balancing signals and adjusting impedance for direct connections from instruments to mixers—both analog and digital—and amplifiers.
This device features selectable input attenuation across all channels, allowing for settings of 0 dB, -20 dB, and -40 dB to accommodate different signal levels. Additionally, the “Ground Lift” option helps eliminate grounding issues and unwanted hum, ensuring a clearer output.
