Professional Microphones
Description
The CAD M177 is a single-pattern side address microphone designed for professional recording and broadcast applications.
The implementation of high speed, low noise, low distortion electronics makes the M177 the ideal candidate for the most
critical applications.
The CAD M177 incorporates a number of unique features including:
• Large 1.1" Single Diaphragm External Bias Condenser Capsule.
• Gold Sputtered Diaphragm.
• High SPL Capability (143 dB SPL with pad)
• Transformerless balanced output circuits.
• 20 dB non capacitive pad
• Stainless steel internal pop/EMI filter.
Getting Started
The high gain and wide bandwidth of the M177 microphone will easily overload the inputs of many professional mixing
consoles if adequate precautions are not taken. This is especially true if the microphone is going to be used on percussion
or amplified electronic instruments. If you have never used this microphone before, we strongly recommend that you
initially reduce the system gain by doing one or more of the following:
• Enable the pad switch on the input of your mixing console.
• Start with the input trim control on your mixing console turned down to a low level.
• Enable the -20 dB pad switch on the M177 microphone.
The M177 requires a 24, 48, or 52Volt Phantom power supply, delivering at least 8mA for proper operation.
M177 Condenser Microphone
The CAD M177 combines a vin-
tage capsule design with
advanced electronics. The M177
features a single pattern version
of the original Equitek E-300 cap-
sule, an externally biased capsule
with a gold sputtered 1.1" dia-
phragm.
Typical FET (field effect transis-
tor) condenser microphones use
discrete designs. This means they
use individual transistors that
must be carefully matched for
proper characteristics. Even with
careful matching, discrete de-
signs are inherently nonlinear. M
Series microphones use a differ-
ent approach. We do not use any
discrete FETs. Instead, we use
advanced high speed OpAmps
(Operational Amplifiers).
These OpAmps are individually
laser trimmed for optimum per-
formance and have very high
gain. This allows a large amount
of negative feedback to be used to
significantly reduce any non-linear-
ity. We have also integrated a new
discrete high efficiency power sup-
ply circuit allowing greater dynamic
range and lower self noise.
The CAD M177 combines an ad-
vanced headamp design, with
extremely efficient power circuitry,
and a vintage capsule design, result-
ing in superior transient response,
low distortion, low noise, and high
output level. The bottom line is we be-
lieve you will find the M177 to
have a remarkably open and clean
sound that will enhance any
project.
User Techniques and Applications
The CAD M177 can be used in a broad number of applications, ranging from live reinforcement to the most critical
studio situations. The M177 is ideal for vocals and voice overs, yet it also excels at some of the most demanding
instrumental projects. The M177 is great for virtually all acoustic, wind, and amplified instruments.The M177 has been
proven to be outstanding in all of these applications and more. Its uncolored sonic characteristics allow you to decide how
a instrument or vocal will sound in the mix.
Switch Functions
Pad
Hi-Pass
Right position = Low end roll off below 80 Hz.
Left Position = Flat low end response.
0dB = Full gain (Highest
Sensitivity) -20dB = 20dB Gain
reduction (Highest Clipping Level)
Summary of Contents for M177
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