Nady CM 88 operating instructions
CM 88 Cardioid Condenser Microphone
USER GUIDE
To take full advantage of the superb features of the CM 88, and to enjoy long
and trouble-free use, please read this User’s Guide carefully.
Congratulations on purchasing the Nady CM 88 Condenser Microphone — the first general purpose handheld vocal microphone
of its kind to feature a studio quality large diaphragm condenser element. The CM 88 is a versatile, professional level microphone, perfect for all live entertainment, recording, and broadcast applications requiring uncompromised studio quality sound.
UNPACKING, INSPECTION, STORAGE AND TRANSPORT
Your CM 88 microphone was carefully packed at the factory, and the shipping carton was designed to protect the unit during
shipping. Please examine your microphone before using and retain the external shipping package for reuse should you ever
need to return your microphone for servicing. A foam padded plastic carrying case is provided for safe, convenient transport and
storage.
STANDARD ITEMS SUPPLIED
• CM 88 microphone
• Microphone clip
• Foam windscreen
• User Guide
• Warranty card
OPTIONAL ACCESSORIES
• 48V phantom power supply (SMPS-1)
FEATURES
Back electret condenser microphone designed for cymbals of all types (including rides, crashes and hi-hats), reeds, acoustic
guitars, piano and vocals (with the accessory windscreen) and overhead applications (both live and recording)
• Extremely uniform and tight cardioid polar pattern for ease in mixing
• Extended frequency response for smooth, crisp, ultra-transparent reproduction
• Aluminum housing and gold-plated XLR contacts
• 9-52V phantom powered
CONNECTING THE CM 88
The CM 88 can be used in live sound reinforcement and
broadcasting and in studio or live recording. It must be
powered by 48V phantom power (such as supplied by the
optional Nady SMPS-1 phantom power supply or a mixing
console with phantom powering), and amplified by a
microphone pre-amp (such as built into a mixer, or a standalone unit).
(Note: Make sure to set the pre-amp to the proper gain leveltoo much gain may distort subsequent amplifiers and too little
may result in a noisy signal)
The CM 88 can be connected to your mixer or phantom power
supply using a standard balanced 3-pin XLR microphone
cable. Before connecting to a mixer directly, turn the channel to
which you’re connecting to its lowest gain setting. If you are
using the Nady SMPS-1 Phantom Power Supply, connect in
the following order:
1. Connect the CM 88 to the SMPS-1
2. Connect the SMPS-1 Signal Output to your mixer
3. Connect the SMPS-1 to the AC power supply (115-230VAC)
4. Turn on the SMPS-1 Power ON/OFF switch
5. Slowly turn up the channel gain in your mixer to the
desired level
USING YOUR CM 88
Depending on the application, the CM 88 can either be handheld
or mounted on a microphone stand with a standard mic clip.
Be aware of the proximity effect (an increase in bass response)
when the mic is placed close to the mouth or instrument. This may
or may not be desirable. Experimenting with the position of the
mic with respect to the audio source will ensure the optimum
results you are seeking in any given application. Also, never place
your hand over the balIscreen of the mic during use, as this can
degrade the performance.
If the microphone is placed too near a speaker, an unpleasant
howling effect (acoustic feedback) may occur. Although all
microphones are prone to feedback to some extent, those with a
designed to accept only signals from the audio source directly in
front of the mic cartridge. Thus, the cardioid pattern of the CM 88
ensures that it will deliver only the desired audio in front of the
mic, rejecting the unwanted audio from the rear, even in noisy
ambient conditions with high sound pressure levels from the PA
and monitor speakers. This means that feedback will be greatly
minimized with the CM 88 in all live performance miking
applications.
Some useful ways in which to totally eliminate annoying feedback
include: experimenting with mic positions with respect to the
speakers, decreasing speaker volume (whenever possible), and
adjusting the equalization of the mic audio with the mixer.
unidirectional polar pattern (such as the CM 88) are specially
PRECAUTIONS AND CARE OF YOUR CM 88
• The capsule is the heart of the condenser microphone. If it
becomes dirty or wet, the sound will be degraded. Never
spray any liquid on the microphone head. Always use a foam
windscreen if you talk or sing close to the microphone grill
screen.
• The microphone should never be dropped or subjected to
extreme shock. Store only in a padded case to protect it
during transport.
• Keep the microphone away from extremely high
temperatures (above 140°F or 60°C) and humidity. Avoid
leaving the microphone in direct sunlight for long periods of
time.
• When using the microphone outdoors, avoid getting it wet.
• After use in a high-moisture application such as a stage
• The CM 88 is supplied with a foam windscreen. This
performance, wipe off the microphone with a dry cloth and
permit it to air dry. Do not store the unit in a closed space
(e.g., a plastic bag) until all moisture has evaporated.
windscreen fits over the grill portion of the microphone and is
designed primarily to decrease bass rumble (from wind noise
pickup) during outdoor live or recording use. It is also useful
in keeping mouth spray out of the microphone head. The
windscreen should be used whenever someone is close
miked to both protect the microphone and to also eliminate
“popping” sounds from percussive breath sounds.
(Note: Be aware that the foam windscreen will slightly
attenuate the high frequency response of the microphone.)
FREQUENCY RESPONSE
SERVICE
(U.S.) Should your Nady microphone require service, please contact the Nady Service Department via telephone at (510) 652- 2411 or e-mail at
service@nadywireless.com. (INTERNATIONAL) For service, please contact the Nady distributor in your country through the dealer from whom
you purchased this product.
Date of purchase _________________________________________________________________________________________________________
Dealer’s Name ___________________________________________________________________________________________________________
Street __________________________________________________________________________________________________________________
City _________________________________________ State________________________ Zip __________________________________________
Note: Do not attempt to service this unit yourself as it will void your warranty.
CM 88 SPECIFICATIONS
Element .....................................................................Black Electret Condenser
Polar pattern ................................................................................ Unidirectional
Frequency range ..............................................................................50~18KHz
Sensitivity ................................................. -45dB ± 3dB (0dB=1V/Pa @ 1KHz)
Output impedance ............................................... 200 Ohms ± 30% (@ 1KHz)
S/N Ratio .......................................................................................... Over 60dB
Max. SPL (1% THD @1000Hz) ............................................................... 136dB
Power requirement ................................................... +48VDC phantom power
Material .................................................................................................. Copper
Connector .....................................................................3-pin XLR (gold plated)
Phasing ............................................. Positive voltage on pin 2 relative to pin 3
Mic cable ............................................ 3-pin XLR standard cable (not supplied)
Size ............................................ Diameter: 0.9" (22mm), Length: 5.1" (130mm)
Net weight ........................................................................................ 5oz (130g)
Specifications and design subject to change for improvement purposes without prior notice.
02/27/02
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