Specifications

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STUDIO/BROADCAST/STAGE
AKG BLUE LINE
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AKG BLUE LINE
The AKG Blue Line is a moderately-priced modular condenser micro-
phone system with extraordinary performance and flexibility. With
eight different microphone capsules and lots of accessories to choose
from, you can customize a Blue Line system to get perfect results on
any recording or sound reinforcement job.
The basic element of the Blue Line system is the SE 300 B preamp
module that transforms the phantom power for the capsule and match-
es the output impedance to your mixer. The SE 300 B uses AKG’s High
Density Surface Mount Device electronics to deliver higher sensitivity,
lower noise, better phase and frequency response plus lower distortion
than older designs. The transformerless output electronics preserve the
full fidelity of the audio spectrum and has extremely low LF distortion.
Each precision AKG mic capsule has active transducers with ultra-low
mass, gold-sputtered diaphragms. The bayonet coupling system on the
SE 300 B and each capsule makes it easy to change modules even
under difficult conditions and has self-cleaning contacts to maintain per-
fect signal integrity even after years of use in hostile environments.
The AKG Blue Line is a product of innovative design and precision
manufacturing. All Blue-Line models have a three-year warranty.
AKG BLUE LINE SE 300 B
T
RANSFORMERLESS POWERING/OUTPUT MODULE
• Powering module for AKG Blue Line capsules
• Extremely compact, reliable circuitry
• Switchable bass cut filter
• Switchable 10-dB preattenuation pad
• Unique bayonet mount for capsules
• Universal phantom powering
The SE 300 B operates from any 9 to 52 V phantom power
supply. It incorporates a switchable 12 dB/octave bass cut
filter at 75 Hz to eliminate footfall noise and a switchable 10-
dB preattenuation pad for high-SPL sound sources. A trans-
formerless output stage ensures pristine full-range audio and
prevents low-frequency distortion. Stand adapter included.
AKG BLUE LINE MICROPHONE COMBINATION
C 391 B CARDIOID
• AKG Blue Line cardioid microphone
• Switchable bass cut filter and 10-dB
preattenuation pad
• Insensitive to handling noise
• High resistance to RF interference
• Capsule mounts directly on SE 300 B powering
unit or connects via 10 ft. (3 m) cable
Versatile cardioid condenser microphone comprising an
SE 300 B powering/output module and CK 91 cardioid capsule.
Foam windscreen and stand adapter included.
AKG BLUE LINE CAPSULES
CK 91
• Consistent cardioid polar pattern
• Frequency independent 180° off-axis rejection
• For a wide range of applications
• Mounts directly on SE 300 B powering unit or
connects via 10 ft. (3 m) cable
Flat frequency response and a consistent cardioid polar pattern
make the CK 91 an ideal tool for applications where good off-
axis rejection is required.
Foam windscreen included.
CK 92 OMNIDIRECTIONAL
• Omni capsule with very well-balanced sound
• No proximity effect
• Perfect choice for reporting, choir,
or solo vocals
• Mounts directly on SE 300 B powering unit
or connects via 10 ft. (3 m) cable
Since the frequency of omnidirectional microphones does not
change with the distance from the sound source for physical reasons,
the CK 92 omni capsule has no proximity effect. Instead, it offers
exceptionally neutral presentation of a source in its ambient
sound field, providing consistent results regardless of the dis-
tance between microphone and source. Includes foam windscreen.
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