AKG CK 33 – Cardioid Condenser Microphone

Technical specifications

The e 914  is a high grade condenser microphone  for very demanding applications.
Its outstanding sound properties qualify the e 914 for highly sophisticated tasks.
The e 914 is a perfect microphone for ambitious recordings and live performances.
Its main areas of application are acoustic guitars, cymbals, percussion, overhead,
orchestras, grand pianos etc . 
 
Features
Exceptionally lively, clear sound
Three-position sensitivity switch
Three-position bass roll-off/cut-off switch
Very high sound pressure handling capability
Exchangeable microphone capsule
Delivery Includes
e 914 microphone
Microphone clamp
Windscreen
Pouch
User manual

Technical Data
Pick-up pattern  cardioid 
Frequency response  20...20 000 Hz 
Sensitivity in free field, no load (1kHz)  7 mV/Pa 
Equivalent noise level  19 dB(A) 
Attenuation  0, -10, -20 dB 
Max. Sound pressure level (aktiv)  137, 147, 157 dB 
Nominal impedance  100 Ohm 
Min. terminating impedance  1000 Ohm 
Dimensions  24 x 157 mm 
Weight  198 g 

The R?DE NT6 is specifically designed for difficult mounting applications. Although
clearly relevant to instrument mic'ing, the new NT6 is extremely well suited to any
situation where a small 'unobtrusive' but powerful microphone system is required.
The NT6 utilises the 1/2" (externally biased) gold sputtered true condenser transducer
used in the internationally renowned R?DE NT5. The capsule is designed to attach to
a custom made, multi-position swivel mount allowing it to be independently positioned
with ease.
To further increase the versatility of the NT6, it is supplied with 2 thread adaptors - 1/4"
to 5/8" and 1/4" to 3/8" that enable the capsule assembly to be securely attached to a
wide variety of mic stands, tripods and boom poles.
The capsule is connected to the pre-amplifier (body) by a custom 3 m Kevlar? fibre reinforced
cable. Housed within the heavy duty satin-nickel-plated body, is a state-of-the-art low noise
balanced output preamplifier, exhibiting a wide dynamic range and full frequency response.
The surface-mount pre-amplifier circuit also incorporates a 2-position variable pad: 0 dB an -10 dB
attenuation, and a 2-position variable high-pass filter that enables you to step from a flat response
to 80 Hz high pass filter; both conveniently located away from the capsule, providing additional
control without the need to move the capsule once in position.
The NT6 is intended for Film, Television, Broadcast, Live Performance, Theatre, Television,
Surround and Environmental recording applications or wherever your imagination takes you.
The NT6 is produced in R?DE's design and manufacturing facility in Sydney, Australia. Utilising
state of the art computer controlled machining and assembly technologies, R?DE is able to
achieve levels of finish and repeatability of the most exacting standards and tolerances.
The NT6 comes supplied with Microphone Preamp (Body), Capsule, 3 m Kevlar? fibre reinforced
cable, RM5 Stand Mount, 2-axis Swivel Mount, 2 thread adaptors, ZP1 Zip Pouch and WS5 Wind Shield.
 
FEATURES:
? 1/2? (externally biased) gold sputtered true condenser capsule ? Heavy duty satin-nickel-plated body
? 2-position variable pad: 0 dB and -10 dB ? 2-position variable high-pass filter: flat and 80 Hz ? Surface
mount technology ? Low noise ? Wide dynamic range ? Full frequency response ? Supplied complete
with 2-axis swivel mount, 2 thread adaptors, M5 clip, WS5 (Black) Wind Shield and Soft Pouch ? Designed
& manufactured in Australia ? Full 2 year guarantee 
 
Operation power:
The NT6 is designed to operate from phantom power to the P48 standard. The NT6 will operate
between 44V and 52V applied with positive polarity to pin 2 and pin 3 of the output XLR connector. 
Operation output impedance:
Output Impedance: The NT6 will operate satisfactorily into a load impedance as low as 1 kΩ. If a
load below this is used, the output signal level will be reduced. The NT6 output is balanced between
pin 2 (hot) and pin 3 (cold). Pin 1 is ground.
 Acoustic principle:
Externally polarised 1/2" (13mm) pressure gradient condenser
Directional pattern:  Cardioid
Frequency range:
40 Hz ~ 20,000 Hz selectable HPF @ 80 Hz/12 dB/octave
Output impedance: 200 Ω
Signal noise ratio din iec 651:
75 dB (1 kHz rel 1 Pa; per IEC651, IEC268-15)
Equvalent noise: 19 dB SPL (per IEC651, IEC268-15)
Maximum spl:
138 dB (@ 1% THD into 1 kΩ)148 dB (@ 1% THD into 1 kΩ) - pad at maximum
Sensitivity:
-38 dB re 1 Volt/Pascal (16 mV @ 94 dB SPL) +/- 2 dB
Dynamic range din iec 651: 119 dB (per IEC651, IEC268-15)
Power supply voltage: 48 Volts (P48)
Weight: 386 grm.
Maximum output voltage: 6 dBu (@ 1% THD into 1 kΩ)
Pin assignment:
3 pin XLR, balanced output between pin 2(+), pin (-) & pin 1 (ground)