AKG CK 31 Specifications

Description
The CK 31 is a cardioid modular screw-on capsule with
smooth response from 50 Hz to 20 kHz. All 30-series
capsules feature pre-polarized condenser elements with gold
plated contacts to ensure reliable connections and trouble-
free performance. The CK 31 capsule can be used with any of
the "Discreet Acoustics Modular Series" installation modules.
Each 30-series capsule has a dual layer windscreen; the dark
gray outer layer disperses the impinging air stream while the
inside layer smoothes the air stream before it reaches the
diaphragm. This two-stage process efficiently reduces wind
noise while maintaining acoustic transparency.

Specifications

Transducer Principle: Condenser prepolarized
Frequency Range: 50–20,000 Hz
Polar Pattern: Cardioid
Sensitivity at 1,000 Hz: 20 mV/Pa = -34 dBV
Equivalent Noise Level: < 21 dB-A
Sound Pressure Level for 1% THD: 125 dB
S/N Ratio (A-weighted) :> 73 dB
Electr. Impedance: < 600 ohms
Power Requirement: 9 to 52 volts phantom power,
requires DPA adapter
(incl. in GN or HM modules)
Finish: Dark gray matte
Size: dia.: 0.5 in. (13.5 mm)
length: 0.8 in. (20 mm)
Fitting Mounting Modules:
GN 15, GN 15 E, GN 15 ES
GN 30, GN 30 E, GN 30 ES
GN 50, GN 50 E, GN 50 ES
GN 155 SET, HM 1000, LM 3, LM 3 L
Included Accessories: W 30 Two stage foam windscreen
CK 31
Features
• Cardioid pickup pattern
• Wide frequency range
• Screw on capsule
• Gold plated contacts
• High performance windscreen
Capsule Module