User`s manual

8
APPLICATIONS:
Microphone Pre Amplifier:
The Tube MP PS is a high quality microphone preamplifier suitable for all dynamic,
condenser, and ribbon microphones. Most conventional mixers utilize budget minded micro-
phone preamps and while very functional, they do not sound all that great. The Tube MP PS
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 or 1/4”
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 microphones are being used.
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 con-
denser microphone. The Tube MP PS is a perfect solution to this problem, letting you connect
any microphone to the existing mixer. Operation is identical to what is covered above.
Instrument DI:
The Tube MP PS 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 the 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
PS. 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 in-
put gain knob and 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 or
1/4” output. The overall output and limiter can be adjusted on the face of the unit. Both out-
puts may be used at the same time so the 1/4” can be routed to an amplifier and the XLR to a
mixer.