4
SPECIFICATIONS
CERTIFICATION
Eligible to bear CE Marking. Conforms to European EMC Directive 2004/108/EC.
Meets Harmonized Standards EN55103-1:1996 and EN55103-2:1996, for residen-
tial (E1) and light industrial (E2) environments.
The Declaration of Conformity can be obtained from:
Authorized European representative:
Shure Europe GmbH
Headquarters Europe, Middle East & Africa
Department: EMEA Approval
Wannenacker Str. 28
D-74078 Heilbronn, Germany
Phone: +49 7131 72 14 0
Fax: +49 7131 72 14 14
Email: [email protected]
ACCESSORIES AND PARTS
Furnished Accessories
Storage Bag
95C2313
Windscreen
A3WS
Swivel Stand Adapter
A25D
Optional Accessories
Shock Stopper™ Isolation Mount
A55M, A55HM
Popper Stopper™
PS-6
Type
Electret Condenser
Frequency Response
20 to 20,000 Hz
Polar Pattern
Cardioid
Output Impedance
150 Ω (actual)
Sensitivity
(at 1 kHz, open circuit
voltage)
−41 dBV/Pa
1 Pascal=94 dB SPL
Maximum SPL
(1 kHz at 1% THD)
1000 Ω load:
139 dB (154 dB, Pad on)
2500 Ω load:
144 dB (159 dB, Pad on)
Signal-to-Noise Ratio
(referenced at 94 dB
SPL at 1 kHz)
75 dB
S/N ratio is difference between 94 dB SPL and
equivalent SPL of self noise, A-weighted
Dynamic Range
(at 1 kHz)
1000 Ω load:
122 dB
2500 Ω load:
128 dBV
Common Mode
Rejection
(10 Hz to 100 kHz)
> 50 dB
Clipping Level
(20Hz-20 kHz at 1%
THD)
1000 Ω load:
3 dBV
2500 Ω load:
9 dBV
THD of microphone preamplifier when applied input
signal is equivalent to cartridge output at specified
SPL
Self Noise
(typical, equivalent SPL,
A-weighted)
19 dB
Polarity
Positive pressure on diaphragm produces positive
voltage on pin 2 with respect to pin 3
Weight
Net:
195 g (6.9 oz.)
Switch
Attenuator:
−15 dB
Connector
Three-pin professional audio (XLR), male
Power Requirements
48 Vdc phantom, 5.2 mA
Summary of Contents for SM137
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