BEYERDYNAMIC OPUS 81 CARDIOID CONDENSER MICROPHONE

APPLICATIONS
Particularly suited to the female vocal range, the Opus 81 stays feedback free with even
the subtlest vocal tones. One of the ?new-breed? of microphones with an even, smooth
response suitable for performers that require a really responsive microphone over the
frequency range.

FEATURES:
? Condenser microphone, cardioid polar pattern
? 12 ? 48 V phantom powering
? High SPL capability: max 138dB
? Rugged and stylish design

SPECIFICATIONS:
Condenser (back electret)
Frequency response 50 - 18,000 Hz
Cardioid
Max. SPL at 1 kHz 138 dB
Open circuit voltage 3.2 mV/Pa 

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)
 

Transformerless Power/Output Module ? The SE 300 B is used with all AKG Blue Line capsules and operates from 9 ? 52 V phantom power. The 3-position switch allows selection of linear response, -10 dB preattenuation and 12-dB-per-octave 75 Hz low-cut filter. A stand adapter is included.

Specifications

Polar pattern: hypercardioid/directional
Frequency range: 20?20,000 Hz
Sensitivity: 25 mV/Pa (-32 dBV)
Max. SPL for 1 % THD: 124/134 dB
Equivalent noise level: 17 dB-A
Signal/noise ratio (A weighted): 77 dB
Preattenuation pad: -10 dB, switchable Bass cut filter: 12 dB/octave at 75 Hz
Electrical impedance: 200 Ohms
Recommended load impedance: >1,000 Ohms
Power requirement: 9 to 52 V phantom power to DIN 45 596
Current consumption:

Technical specifications

The Shure Model VP88 is a single-point, stereo condenser microphone for use in professional studio recording, field production, electronic news gathering (ENG), and studio broadcasting applications. It combines two condenser cartridges in a single housing to create a stereo audio image of the sound source. It is unique in its ability to capture the realism of a live event and yet withstand rigorous field production environments.

The VP88 uses a mid-side (M-S) configuration. One microphone cartridge (Mid) faces forward to capture on-axis sound using a cardioid pickup pattern. The other microphone cartridge (Side) is bi-directional, capturing sound from either side. The VP88 contains an internal M-S matrix with three settings for different degrees of stereo image seperation. The internal matrix can be bypassed if an external matrix is used or if stereo imaging is done in post-production. Switches on the top of the microphone control output mode, stereo imaging, low-frequency rolloff settings, and battery on/off.

The VP88 can operate on phantom power or an internal 6V battery. The VP88 is supplied with a multi-connector "Y-splitter" cable, foam windscreen, swivel stand adapter, 6-volt battery, and zippered carrying/storage bag. Optional accessories include an isolation mount, a 7.6 m (25 ft) microphone extension cable, a phantom power supply, and a 4.3 m (14 ft) microphone stand.

• Time-coherent, Mid-Side (M-S) design for optimal stereo imaging
• Built-in stereo matrix for direct control of the stereo spread; direct M-S outputs available
• Mono compatibility ideal for broadcast applications
• 40 to 20,000 Hz frequency response
• Low noise and distortion
• Wide dynamic range
• Switch-selectable, low-frequency rolloff (12 dB/octave below 80 Hz) for reduced pickup of ambient noise and stand vibration
• Operates on phantom power or a 6V camera battery
• LED power indicator
• Internal shock mount for reduced stand vibration and handling noise
• Built-in "pop" screen
• Includes windscreen, swivel adapter, and Y-cable