will have to set the gain lower than one who picks
the strings very lightly.
To set the gain correctly, you have to mount and
connect your mic to the guitar and plug it into the
Meridian Pro Preamp. Connect it to your
amplification system and set the channel to a low
volume setting for a start.
Begin with the gain on the preamp at about 12
o’clock center setting. The volume control on the
Meridian Pro Preamp should be set to fully
clockwise.
Play your instrument in your loudest dynamic range
(play it as hard as you expect to play) and slowly
turn the gain up until distortion just occurs. Now
back the gain off a little bit until the signal is clear
again. This is the correct gain setting for this
instrument.
With the Meridian Microphone the gain will most
likely end up somewhere between “half” and “full”.
Please keep in mind that excessive EQ boost
applied after the initial gain setting procedure may
introduce distortion, in this case you have to reduce
the gain a little bit.
PHASE SWITCH
Phase switches are usually marketed as a feedback
controlling device, but they accomplish more than
just that.
What is phase? Phase determines at what point in
time a sound wave has it’s peak or trough.
This picture shows 2 simple (identical) sine
waves, but the wave on the bottom (2) is
inverted in respect to the wave on top (1).
Interestingly, if these two waves were
played back simultaneously, they would
completely cancel each other out and no
sound would be heard.
Amplification systems and effect units may or may
not invert the phase in respect to the signal which is
send in. In most cases the manufacturers do not
specify.
Every acoustic instrument projects (acoustic) sound
waves in a certain phase. The phase that is
projected from the amplified speaker source should
be "in phase" (not inverted) with the acoustic
instrument's own sound waves or the result will not
be optimal. If the amp projects the inverted phase,
the acoustic instrument will fight its own amplified
sound and no balanced tone can develop. Round
and warm tone is only achieved when acoustic and
amplified sound oscillate in the same phase. The
Meridian Pro Preamp’s phase switch allows for
instant correction of this problem.
Play your instrument and flip the phase switch back
and forth. You will experience a fuller and warmer
tone one way or the other.
OUTPUTS
The active DI XLR output and the line output can be
used simultaneously. Like this the 1/4" line out can
conveniently be used as a monitor out or for
connection to a tuner while the unit is connected to
the PA via the XLR out. You can of course use each
output individually.
The Meridian Mic can also be used with the K&K
Quantum Blender. The microphone itself does not
work on 48V phantom power! It is powered with 5
volts by the preamp.
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