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• Extremely small and inconspicuous,
lightweight yet rugged
• Delivers superior sound combined with
outstanding ease of use
• High sensitivity and low self-noise
ensures generous headroom
The C 542 BL is a high quality boundary microphone designed
to deliver superior results for a multitude of recording
applications. The boundary layer technique is well-known for
recording and offers non-directional pickup that is frequency-
independent.
Succeeding the proven C 562 BL, the C 542BL is small, light-
weight and easy to place – no stand is needed. Since the
transducer sits in a metal plate only 5 mm (0.2 in) thick, the
plate doesn’t interfere with or color the sound. Frequency
response is very uniform within its hemisphere and it
captures the “room sound’’ of an instrument very accurately.
The C 542BL can be permanently attached to the floor or wall
of a studio using the screw holes in the plate or attached
temporarily using the supplied adhesive compound. Its 3-pin
output connector also has a switchable bass-cut filter to
minimize surface-born noise.
Easy to use and sonically versatile, the C 542 BL is a great
addition to the “mic locker’’ of any studio.
SPECIFICATIONS
Polar pattern: omnidirectional (hemispherical)
Frequency range: 20 Hz to 20 kHz
Sensitivity: 20 mV/Pa (-34 dBV)
Max. SPL for 1% THD: 130 dB
Equivalent noise level
(CCIR 468-3): 26 dB
Equivalent noise level: 16 dB-A
Signal/noise ratio (A-weighted): 78 dB
Bass cut filter: switchable flat or 150 Hz,
12 dB/octave
Electrical impedance: < 600 ohms
Recommended load impedance: ≥ 2.000 ohms
Powering: 9 to 52 V phantom power
to DIN 45 596
Current consumption: < 2 mA
Connector: 3-pin XLR
Finish: dark gray
Size: 80 dia. x 5 (10) mm (3.1 x 0.2/0.4 in.)
Net weight (w/o cable): 56 g (2 oz.)
Standard accessories: fixed 3-m (10-ft.) connecting cable with
XLR connector, adhesive compound
Optional accessories: B 18 battery power supply
Item number: 2762 Z 0001
Optional B 18 battery power supplyXLR connector with integrated bass
cut filter
Extremely rugged construction
Adhesive compound for easy instal-
lation
Recording a grand piano
Sound entry ports on C 542 BL topHemispherical pattern (in front of
boundary)
Recording drums
www.akg.com
AKG Acoustics GmbH
Lemböckgasse 21–25, P.O.B. 158,
A-1230 Vienna/AUSTRIA,
Ph: (+43 1) 86 654-0*, Fax: -7516,
e-mail: sales@akg.com
AKG Acoustics, U.S.
914 Airpark Center Drive,
Nashville, TN 37217, U.S.A.
Ph: (+1 615) 620-3800, Fax: -3875,
e-mail: akgusa@harman.com
10/04 PROA 1518