The VDI is a single channel, all-triode vacuum tube DI (direct box) for recording electric or electronic instruments. The input is designed to provide the proper load impedance for all instruments that have a ¼-inch phone jack output. Tube circuitry provides the very high impedance necessary to capture all the details of these instruments.
The outputs of the VDIare mic level (150 ohm source impedance at a nominal -30dBV).
The VDI is designed to operate into a high-quality microphone preamplifier like our VT-1 and VT-2 Vacuum Tube Microphone Preamplifiers.
The operation is very simple: plug the instrument into the ¼-inch front panel jack and take the output from the XLR connector. A second ¼-inch provides an output to feed a guitar amplifier when necessary. A ground-lift switch helps eliminate ground loop buzz.