AKG Acoustics C 414 B/ULS Microphone User Manual


 
C 414 B/ULS
Large Diaphragm Condenser Microphone
Description
The AKG Model C 414 B/ULS is certainly the most
ubiquitous studio condenser microphone in the United States,
and very likely in the rest of the world as well. It is designed
around dual back-to-back large 1 in. (25 mm) gold sputtered
diaphragms for multiple pickup patterns. The microphone's
pickup patterns are easily switchable among omnidirectional,
cardioid, hypercardioid, and figure-eight. Additional flexibility
in the studio operating environment allows a bass cut of
12 dB/octave below 150 or 75 Hz and pre-preamp attenuation
of either 10 or 20 dB. The self noise of the microphone is a
low 14 dB (A weighted). On-axis sensitivity for all patterns is
12.5 mV/Pa, and for unpadded operation maximum program
level is 140 dB for 0.5% total harmonic distortion.
The C 414 B/ULS is one of the most accurate multi-pattern
microphones available to the engineer. The far-field on-axis
response for all four switchable patterns is remarkably flat,
varying no more than +/-2 dB over the range from 20 to 20 kHz.
Features
Specifications
Transducer Principle: Condenser, externally polarized
Frequency Range: 2020,000 Hz
Polar Pattern: Omnidirectional, cardioid, hypercardioid,
and figure-eight
Sensitivity at 1,000 Hz: 12.5 mV/Pa =^ -38 dBV
Equivalent Noise Level: 14 dB-A
Sound Pressure Level for 0.5% THD:
134 dB, wide-band (unpadded)
140 dB, 1 kHz (unpadded)
S/N Ratio (A-weighted): 80 dB
Electr. Impedance: 180 ohms
Load Impedance: > 1,000 ohms
Power Requirement: 1248 volts nominal
Phantom powering
Connector: 3-pin XLR type
Finish: Non-reflective black
Size: 5.6 x 1.8 x 1.4 in. (141 x 45 x 35 mm)
Net/Shipping Weight: 11 oz. (320 g)/2.1 lbs. (950 g)
Included Accessories: H 100 Elastic Suspension
W 414 Windscreen
Optional Accessories: SA 18/3 B Stand Adapter
B 18 Battery supply unit
N 62 E Power supply
One of the world's most celebrated
studio condenser microphones
Large 25 millimeter gold sputtered
diaphragm format optimized for
studio applications
Dual diaphragm for multiple
polar patterns
High acoustic level capability
(140 dB-SPL for 0.5% THD)
Low self noise (14 dB-A)
H 100