AKG C 414 B/ULS - User Manual

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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

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Summary

AKG C 414 B;ULS Microphone Description

C 414 B;ULS Microphone Overview

The AKG Model C 414 B/ULS is a ubiquitous studio condenser microphone designed for professional use.

AKG C 414 B;ULS Specifications

Polar Pattern Options

Switchable polar patterns include omnidirectional, cardioid, hypercardioid, and figure-eight.

Sensitivity and Noise Levels

Sensitivity is 12.5 mV/Pa, equivalent noise is 14 dB-A, and S/N ratio is 80 dB.

Sound Pressure Level Capability

Max SPL for 0.5% THD is 134 dB wide-band and 140 dB at 1 kHz.

Physical and Electrical Specs

Dimensions 5.6 x 1.8 x 1.4 in, 180 ohm impedance, 3-pin XLR connector, phantom powered.

AKG C 414 B;ULS Key Features

Celebrated Studio Microphone

One of the world's most celebrated studio condenser microphones.

Diaphragm Design

Large 25mm gold sputtered diaphragm optimized for studio applications; dual diaphragm.

Performance Capabilities

High acoustic level capability (140 dB-SPL) and low self noise (14 dB-A).

Graphical Data and Polar Responses

On-Axis Frequency Response

Graphs showing on-axis frequency response for omnidirectional, cardioid, hypercardioid, figure-eight patterns.

Polar Response Charts

Charts illustrating polar response patterns at various frequencies for each pickup pattern.