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CTM 77
ELECTRET CONDENSER CARDIOID
MICROPHONE
Description
The Astatic CTM 77 is a superior low-noise, electret condenser cardioid
microphone designed for professional vocalists and musicians. The CTM 77
provides the performance and features to satisfy today's most demanding
professionals.
The wide and flat frequency response of the CTM 77 provides natural transparent
sound quality. The cardioid pickup pattern minimizes annoying feedback (when
used close to sound reinforcement speakers and monitors) and reduces the pickup
of unwanted off-axis sounds. A transformerless electronic design provides optimum
low frequency response and low distortion. An effective internal multistage pop
filter minimizes wind and breath noise. The locking on/off switch provides excellent
flexibility of use.
The CTM 77 has a Flex-Form™ hardened steel grille screen that dramatically
resists deformation while greatly reducing any risk of adverse performance caused
by a bent or dented ball screen. This unique ability to retain its original shape
assures that the CTM 77 will maintain its attractive appearance.
The CTM 77 features the exclusive (I.N.R.-3™) Impact Noise Rejection system.
Our proprietary rubber shock mount isolates the transducer from the barrel, thus
dramatically reducing cable, stand and handling noise. The need for any external
shock mounting device is virtually eliminated.
The low-frequency response of the CTM 77 may be enhanced by increasing or
decreasing the distance from the sound source. This phenomenon is technically
known as “proximity effect”. Nominal or “flat” response is generated at a distance
of 24 inches or more. However, as the distance to the sound source decreases,
the bass sensitivity increases, providing a solid, robust character.
The CTM 77 is supplied complete with a zippered vinyl protective pouch and a
snap-in microphone swivel-mount.
CAD Quality
All Astatic CTM 77 microphones are audio tested and inspected prior to shipment.
Our absolute commitment to quality insures that Astatic microphones remain the
Best Value in today's competitive industry.
Operation and Maintenance
The Astatic CTM 77 is one of the finest instrumental and recording microphones
available. Although it is extremely durable, it should be stored in the zippered
pouch provided to protect it from dust and dirt when not in use.
If the front screen becomes soiled by dirt or residue, it may be cleaned using the
following procedure. Unscrew the front screen assembly and remove the inside
foam windscreen. Wash the foam windscreen using a mild detergent, and let dry
thoroughly. Follow the same method for the grille screen. To clean the mike
housing, use a cloth dampened with isopropyl alcohol.
Industrial Audio Products