Specifications; Accessories And Parts; Furnished Accessories; Optional Accessories - Shure SM87A Manual

SPECIFICATIONS

Type Condenser (electret bias)
Frequency Response 50 to 20,000 Hz
Polar Pattern Supercardioid
Output Impedance EIA rated at 150Ω (100Ω actual)
Sensitivity −52 dBV/Pa (2.4 mV)
(at 1 kHz, open circuit voltage)
1 Pascal=94 dB SPL
Maximum SPL 140 dB
(1 kHz at 1% THD, 1kΩ load)
Signal-to-Noise Ratio
70 dB
(referenced at 94 dB SPL at
S/N ratio is difference between 94 dB SPL
1 kHz)
and equivalent SPL of self noise, A-weighted
Dynamic Range 116.5 dB
(at 1 kHz, 1 kΩ load)
Clipping Level
−6 dBV (0.5 V)
(1 kHz at 0.25% THD, 1kΩ load)
Self Noise 24 dB
(typical, equivalent SPL,
A-weighted)
Polarity
Positive pressure on diaphragm produces
positive voltage on pin 2 with respect to pin 3
Weight Net: 0.20 kg (0.44 lbs)
Connector Three-pin professional audio (XLR), male
Case Aluminum construction with steel grille and
satin black finish
Power Requirements 11 to 52 Vdc phantom (1.2 mA)
CERTIFICATION
Eligible to bear CE Marking. Conforms to European EMC Directive 89/336/EEC.
Meets applicable tests and performance criteria in European Standard EN55103
(1996) parts 1 and 2, for residential (E1) and light industrial (E2) environments.
192 mm (7 9/16 in.)
21 mm
(53/64 in.)
4

ACCESSORIES AND PARTS

Furnished Accessories

Swivel Stand Adapter
Carrying/Storage Bag

Optional Accessories

Phantom Power Supply
Shock Stopper™ Isolation Mount
Shock Stopper™ Isolation Mount
Windscreen
TRIPLE-FLEX™ Cable and Plug 7.6 m (25 ft.)
Replacement Parts
Screen and Grille Assembly
Cartridge
In-Line Preamplifier (1 piece)
100 Hz
500 Hz, 1000 Hz
+20
+10
1 cm
(3/8 in.)
0
50.8 mm
60.6 mm
(2 in.)
(2 ft.)
–10
–20
20 50 100
95A2313
RK214G
RPM626
3150 Hz
610000 Hz
2 3 4 5 6 7 9 8 2 3 4 5 6 7 9 8
1000 10000
Hz
A25D
PS1A
A55M
A55HM
A85WS
C25F
R128
20000