AKG Acoustics C 414 B-ULS 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: 20–20,000 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: 12–48 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

AKG is constantly improving and modifying its products, therefore, specifications are subject to change without notice.

The microphone shall provide at least four switchable pickup
patterns that are nominally omnidirectional, cardioid, hypercardioid,
and figure-eight. The microphone shall have maximum sensitivity
along its radius, and that sensitivity shall be no less than 12.5
mV/Pa for all patterns. The microphone shall provide a switchable
12 dB/octave roll-off at frequencies of 75 and 150 Hz. Pre-preamp
attenuation switches of -10 and -20 dB shall also be provided, and

the self noise floor of the microphone in its unpadded operation
shall be no greater than 14 dB (A weighted). The unpadded
microphone shall operate in a wide-band sound field of 140 dB­SPL with no more than 0.5 % total harmonic distortion. The
microphone case shall fit within a rectangular envelope no larger
than 141 x 45 x 35 mm. The microphone shall be the AKG
Acoustics Model C 414 B/ULS.

Graphical Data

Architects and Engineers Specifications

Omnidirectional On-axis Frequency Response (measured at 1 meter)

Hypercardioid On-axis Frequency Response (measured at 1 meter)

Figure eight On-axis Frequency Response (measured at 1 meter)

Cardioid On-axis Frequency Response (measured at 1 meter) Polar Response

Polar Response

Polar Response

Polar Response

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Limited Warranty

Valid only in the United States. AKG Acoustics warrants AKG products against defects in material

or workmanship for a period of three years from the date of original purchase for use, and agrees

to repair or, at our option, replace any defective unit without charge for either parts or labor.

Important: This warranty does not cover damage resulting from accident, misuse or abuse, lack of

reasonable care, the affixing of any attachment not provided with the product, loss of parts or

connecting the product to any but the specified receptacles. This warranty is void unless service

or repairs are performed by an authorized service center. No responsibility is assumed for any

special, incidental or consequential damages. However, the limitation of any right or remedy shall
not be effective where such is prohibited or restricted by law. Simply take or ship your AKG product
prepaid to our service department. Be sure to include your sales slip as proof of purchase date.
(We will not repair transit damage under the no-charge terms of this warranty.) Note: No other
warranty, written or oral is authorized by AKG Acoustics, Inc. This warranty gives you specific legal
rights, and you may also have other rights which vary from state to state. Some states do not allow
the exclusion or limitation of incidental or consequential damages or limitation on how long an
implied warranty lasts, so the above exclusions and limitation may not apply to you.

Specifications subject to change without notice.

AKG Acoustics GmbH

Lemböckgasse 21–25, P.O.B. 158, A-1230
Vienna/AUSTRIA
Tel: [phone]*, Fax: [phone]
Internet: http://www.akg.com

AKG Acoustics; A Division of Harman Pro Germany
Bodenseestraße 228, D-81243 München/GERMANY
Tel: [phone], Fax: [phone]

Arbiter Pro Audio

Wilberforce Road, London NW9 6AX/ENGLAND
Tel: [phone], Fax: [phone]

AKG ACOUSTICS, U.S.

914 Airpark Center Drive
Nashville, TN 37217, U.S.A.
Tel: [phone], Fax: [phone]

Studer Japan Ltd.

2-43-7, Uehara, Shibuya-ku, Tokyo 151-0064/JAPAN
Tel: [phone], Fax: [phone]

Erikson Pro Audio

620 McCaffrey, St-Laurent, Quebec, H4T 1N1, CANADA
Tel: [phone], Fax: [phone]
Internet: www.jam-ind.com/eriksonpro

DS-C 414 B/ULS