AKG Acoustics C562BL User Manual

C 562 BL

Boundary Layer Condenser Microphone

Description

The AKG Model C 562 BL condenser microphone is
designed for boundary layer mounting in environments where
a natural sound balance exists at one or more wall or floor
boundaries. Primary applications include front-of-stage floor
mounting, where proscenium and stage shell reflections often
provide an accurate “mix” of all musical details, suitable for
recording. Another primary application is as a table mounted
microphone for picking up conversations from all directions,
with none of the reflections, and consequent comb filtering,
that plague microphones mounted on desk stands. In its role
as a “half space” mounted microphone, its sensitivity is 6 dB
greater than if it were placed in free space. Its balance
between mid-frequency and low-frequency response is
directly related to the boundary perimeter. If it is used on a
temporary boundary, that boundary should have a perimeter
of 20 feet (6 meters) if smooth response is to be ensured
down to the lowest frequencies. The extremely small
diameter of the entrance to the electret transducer ensures
that the difference between on-axis and off-axis frequency
balance will be virtually zero. That is, sounds arriving from all
angles will maintain their spectral integrity.

Since the microphone normally operates in the transition
region between direct and reverberant fields, a random
incidence “correction” has been incorporated into the
microphone's response. This consists of a smoothly rising
response above 3 kHz that reaches an average level of +6 dB
over the range from 5 to 15 kHz. This provides a subjective
improvement in overall musical balance. In the recording
studio, boundary layer microphones provide a handy solution
to problems of micing the piano. They may be positioned in
pairs on the underside of the cover, with the cover up or
down, for surprisingly good stereo pickup.

Features

• Flat profile for accurate boundary
mounting

• Extended low and high frequency
response

• Uniform hemispherical response

• High sensitivity (20 mV/Pa)

• High acoustic level capability
(130 dB-SPL for 1.0% THD)

Specifications

Transducer Principle:

Pre-polarized condenser

Frequency Range: 20–20,000 Hz

Polar Pattern: Hemispherically omnidirectional

Sensitivity at 1,00 Hz:

20 mV/Pa -34 dBV measured on a
boundary at least 1.5 m by 1.5 m

Equivalent Noise Level: 16 dB-A

Sound Pressure Level for 1% THD: 130 dB

S/N Ratio (A-weighted): 78 dB

Electr. Impedance: < 600 ohms

Load Impedance: > 2,000 ohms

Power Requirement: Phantom powering, 9–52 volts

Connector: 3-pin

XLR type

Cable Length: 10 ft. (3 m)

Finish: Dark gray

Size:

6.3 in. (160 mm) diameter;
thickness of plate 0.35 in. (9 mm)

Net/Shipping Weight:

2.1 lbs. (0.95 kg)/4.2 lbs. (1.9 kg)

Included Accessories: Foam-type windscreen

Microphones · Headphones · Wireless Microphones · Wireless Headphones · Headsets · Electroacoustical Components

Limited Warranty

Valid only in the United States. AKG Acoustics warrants AKG products against defects in material
or workmanship for a period of two 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

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

The microphone shall be of the boundary layer type suitable for

temporary or permanent mounting on flat surfaces.

The microphone shall have a flat circular profile, with the
condenser element mounted in the middle. The transducing
element shall communicate directly to the outside through small
openings. The sensitivity of the microphone shall be at least
20 mV/Pa when mounted on a boundary 4.95 feet (1.5 meters) on
a side, and the frequency range shall extend from 20 Hz to 20 kHz.
The response shall exhibit an average rise of 6 dB in the range

from 5 kHz to 15 kHz to compensate for losses normally
encountered in the operation of boundary layer microphones in the
transition region between direct and reverberant fields. The self
noise level of the microphone shall be no greater than
16 dB, as measured with A-weighting, and the total harmonic
distortion shall be no greater than 1% at operating levels of
130 dB-SPL. The microphone shall accept phantom powering over
the range from 9 to 52 volts. The microphone shall be the AKG
Acoustics Model C 562 BL.

Graphical Data

Architects and Engineers Specifications

DS-C 562 BL

On-axis Frequency
Response (measured at 1 meter)

Polar Response