PRESONUS BLUETUBE User Manual page 6

the Blue Tube the ability to boost the desirable
signal without increasing unwanted background
noise.
Phantom Power. Each channel of the BlueTube has
48V Phantom power available. When the Phantom
power switch is engaged, power is supplied at a
constant rate to both channels whether one or both
channels are used.
performance of your condenser microphone(s) and
that the signal will be free of distortion due to
insufficient power.
Phase Reverse. A phase reverse switch is provided
on each channel. This switch enables the user to
invert the phase of a microphone if phase
cancellation is
microphones in close proximity to one another. The
phase reverse switch also can compensate for
different XLR connector
connections have been inverted.
-20 dB Pad.
A 20 dB pad is available on each
channel for reducing the in-coming signal level. This
pad provides a more manageable signal from high
output devices giving the operator greater control
over the in-coming signal and a much reduced
chance of over-driving the input and thereby
avoiding distortion.
Mic/Instrument
BlueTube has a separate Neutrik Combo
inch connector is provided on the front of the Blue
This assures optimum
noticed when using
hook-ups
Input.
Each channel
identical
where pin
of the
XLR / ¼