GENERAL
Contoured to fit comfortably in the palm of your hand,
the Model 520DX “Green Bullet” microphone produces the
unique sound that has made it a legend among harmonica
players.
The
520DX features a volume control knob at the base
of the microphone (see Figure 1) that allows musicians to
make adjustments to suit their needs during a live perfor-
mance. An attached cable with a standard 1/4-inch phone
plug
allows the microphone to be connected to a high-imped
-
ance
device.
APPLICATIONS
Connect the 520DX directly into a guitar amplifier to
produce the classic blues harp sound. Use the following
guidelines:
The
volume control on the microphone should be
turned
down before pluging it into an amplifier. As you move
away
from the amplifier
, the volume can be turned up.
Adjust the microphone’s volume control knob during
performances
as
needed. For example, when switching
from
playing rhythm to lead or to place the microphone
on standby between sets.
To avoid feedback, maintain as much distance as pos-
sible
from monitors or loudspeakers. Adjust the volume
of monitors or loudspeakers at the mixing console so
that no feedback is present when the volume control
knob on the harmonica microphone is at its maximum
setting.
NOTE:
The volume setting of the guitar amplifier may
have
a
significant ef
fect on the overall tone produced. Experiment
with different microphone and amplifier volume settings to
achieve
the desired ef
fect.
VOLUME CONTROL
OFF
VOLUME CONTROL KNOB
FIGURE 1
LOW
IMPEDANCE
To
connect the 520DX to a low impedance device, such
as a mixer, use a low-to-high impedance-matching line
transformer,
such as the Shure model A95U.
NOTE: The 520DX can be rewired for low impedance, but
this
disables the volume control. Contact the Shure Applica
-
tions
Group at (847) 866-2525 for more information.
SPECIFICATIONS
Type
Dynamic
Frequency Response
100 to 5,000 Hz (Figure 2)
TYPICAL FREQUENCY RESPONSE
FIGURE 2
Shure
B
rother
s I
ncorporated
22
2 H
artre
y A
venue
Evansto
n IL 6
0202-369
6 U
.S.A.
520DX
H
armonica Microphone (”Green Bullet”)
User’s Guide
27A2929
(QE)
1997, Shure Brothers Incorporated
Printed in U.S.A.
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