Gain
Sets the Accustate level control lets you simultaneously adjust the gain and input to ensure lowest noise at all settings.
Invert
Reverses the polarity on the JDV output. Ideally suited for eliminating feedback on stage or can be used to better phase align two signals for improved stereo imaging.
Filter
High-Pass Filter (HPF) reduces low frequency resonance and helps clean up the sound of acoustic instruments while eliminating run- away feedback. Great for layering tracks when recording.
XLR Input
As found on 500 series racks or the Radial Workhorse, this enables the JDV-Pre to be used with an instrument microphone. Transformer coupled for optimal signal flow.
Drag On
Engages the Drag control. This shifts the JDV input impedance from 3.9 meg-ohms for piezo pickups to a variable load that can be set from 22k-ohms to 500k-ohms for magnetic pickups.
LEDs
Three separate LEDs with On for power, Signal present and Peak overload to provide visual feedback of the JDV-Pre signal and operating status.
Drag Control
Lets you replicate the load of a magnetic pickup as if connected to a tube amplifier. The result is a much smoother more natural tone. Great for bass and guitar!
Input
Used to connect instrument to the JDV-Pre. Switching jack with front panel priority over the XLR mic input on rear panel of 500 series rack.
Aux Out
Buffered outputs is used to feed a guitar or bass amplifier when recording. Transformer isolated to eliminate buzz and hum caused by ground loops
Omniport
Designated as a balanced low impedance direct box output designed to feed a snake system and mixing console in a live touring environment (Only with Workhorse).
