ART Pro Audio USBDualTubePre - Two Channel USB Tube Preamp - Manual (Page 11)

APPLICATIONS:
Microphone Pre Amplifier:
The USB Dual Tube Pre is a high quality microphone preamplifier suitable for all dynamic, condenser, and ribbon microphones.
Most conventional mixers utilize budget minded microphone preamps and while very functional, they do not sound all that great. The
USB Dual Tube Pre serves as a quality upgrade that will give you more flexibility and a more robust tone than the standard preamps.
Simply plug a microphone into the XLR input. Apply phantom power if using a condenser mic. Then dial up the gain and you are
ready to go. Refer to the LEDs on the front panel for a visual measure
of input gain, and then route the output to a mixer, workstation,
or computer via the 1/4-inch jacks or USB output. The overall analog output level can be adjusted right at the unit.
Phantom Power Supply:
Many mixers, workstations, and computer interface boxes will not supply +48 Volt phantom power on all the microphone inputs.
This is a critical feature if you plan to use a condenser microphone. The USB Dual Tube Pre is a perfect solution to this problem, let-
ting you connect any microphone to the existing mixer or computer. Operation is identical to what is covered above.
Instrument DI:
The USB Dual Tube Pre will work well as a very functional Tube DI for bass, acoustic guitar and virtually any other instrument with
a 1/4” or XLR output. Many people prefer the sound of a tube for responsiveness and warmth instead of standard DI’s and preamps.
You will also enjoy more flexibility and control over a standard DI.
Operation is simple. Insert the output of the instrument into the input of the USB Dual Tube Pre. Make sure the volume on the bass or
guitar is up all the way. If you are using any effects, they can be patched into the INSERTS and then depress the INSERT switch.
Make sure that the overall output is not greatly increased when the effect is on. Adjust the input GAIN knob and refer to the SIG-
NAL/CLIP LEDs on the front for a visual measure of input gain. Then route the output to a mixer, workstation or computer interface
via the 1/4” or USB outputs. The overall Output and Compressor can be adjusted on the front of the unit. Both analog outputs and the
USB port may be used at the same time so that the 1/4” direct outputs can be routed to an amplifier, the 1/4" MONITOR outputs to a
monitor system and the USB to a computer.
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