AKG 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 C 414 B/ULS Specifications

General

Transducer Type	Condenser
Frequency Range	20 Hz - 20 kHz
Impedance	200 ohms
Pad	-10 dB, -20 dB
Recommended Load Impedance	≥1000 ohms
Powering	48V phantom power
Polar Pattern	Cardioid, Hypercardioid, Figure-8
Equivalent Noise Level	14 dB-A
Low Cut Filter	75 Hz, 150 Hz
Connector	XLR
Signal-to-Noise Ratio	80 dB
Weight	300 g
Dimensions	160 mm

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.