
LOW IMPEDANCE
2000000001000150 100
98765432 98765432
+10
0
–10
Hz
dB
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 Applications Group at (847) 600-8440 for more information.
SPECIFICATIONS
Type Dynamic
Frequency Response 100 to 5,000 Hz
Polar Pattern Omnidirectional
Impedance High, unbalanced
Load Impedance Range Minimum:100kΩ
Output Level (at 1,000 Hz) Open Circuit Voltage –38.0 dBV/Pa (13 mV)
1 Pa = 94 dB SPL
Polarity Positive sound pressure on diaphragm pro-
duces positive voltage on tip with respect to
sleeve (ground) of microphone output phone
plug connector
Cable 6.1 m (20 ft) two conductor shielded with
standard 1/4-inch phone plug attached (sup-
plied wired for high-impedance, unbalanced
connection)
Case Green and chrome finished die casting
Dimensions 63 mm (2.5 in) max diameter, 82.6 mm (3 1/4
in) long
Net Weight (with cable) 737 grams (26 oz)
TYPICAL FREQUENCY RESPONSE