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The VT-3 is a dual-channel, all-triode vacuum tube DI (“direct box”) for recording electric or electronic instruments. The inputs are designed to provide the proper load impedance for all instruments that have a 1/4-inch phone jack output. Tube circuitry provides the very high impedance necessary to capture all the details of these instruments.
The outputs of the VT-3 are mic level (150 ohm source impedance at a nominal -30dBV). The VT-3 is designed to operate into a high-quality microphone preamplifier like our VT-1 and VT-2 Vacuum Tube Microphone Preamplifiers
Operation is very simple: plug the instrument into the 1/4” front panel jack and take the output either from the front panel XLR connector, or a parallel XLR connector on the back panel. A second 1/4” jack provides an output to feed a guitar amplifier when necessary. A ground-lift switch helps eliminate ground loop buzz, and a switchable high-pass filter gently rolls off frequencies below 100Hz when required.
The two channels are entirely independent and can be used with two different instruments at the same time.
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