Owners Manual

APPLICATIONS:

Microphone Pre Amplifier:

The Tube MP Project Series with USB 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

Tube MP Project Series with USB serves as a quality upgrade that will give you more flexibility

and a more robust tone than the standard preamps.

Simply plug the microphone into the XLR input, determine the impedance of the mic you

selected. Apply phantom power if using a condenser. Then dial up the gain and you are ready

to go. Refer to the 4 segment LED on the front for input for a visual measure of input gain, then

route the output to a mixer, workstation, or computer interface via the XLR, 1/4” or USB output.

The overall output can be adjusted on the face of the unit; you may also choose to use the limit

function to protect from any spikes in audio. Once you begin to pass audio through the system,

you will have the ability to further dial in the tone a little closer by using the phase invert switch

and low filter. These features can be very useful on drums and other areas where multiple mi-

crophones are being used.

Phantom Power Supply:

Many mixers, workstations, and computer interface boxes will not supply +48 Volt phan-

tom power on all the microphone inputs. This is a critical feature if you plan to use a condenser

microphone. The Tube MP Project Series with USB is a perfect solution to this problem, letting

you connect any microphone to the existing mixer or computer. Operation is identical to what is

covered above.

Instrument DI:

The Tube MP Project Series with USB 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 peo-

ple 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 Tube MP

Project Series with USB. Make sure the volume on the bass or guitar is up all the way. If you

are using any effects, make sure that the overall output is not greatly increased when the effect

is on. Adjust the input gain knob and refer to the 4 segment LED on the front for a visual

measure of input gain. Then route the output to a mixer, workstation or computer interface via

the XLR, 1/4”, or USB output. The overall output and limiter can be adjusted on the face of the

unit. Both analog outputs and the USB port may be used at the same time so the 1/4” can be

routed to an amplifier, the XLR to a monitor mixer and the USB to a computer. Using a local

analog mixer for monitoring during the record process gives you the most flexibility but in a

pinch you can drive a set of headphones directly from the ¼” analog output jack without prob-

lems. Just note that in this case the output is a mono signal that will only play on one side of

you headphones if they are stereo.