Pressure-Gradient
Condenser Microphone
770
Unpack your MXL 770 Microphone package carefully and verify that all of the following
items are included:
• MXL 770 Condenser Microphone
• MX-57 Shockmount
• Carrying Case
If any of these items are missing or damaged, contact the company from which you
purchased the microphone.
Thank you for choosing the MXL 770 Condenser microphone. For best results, please take a
few moments to read this manual and familiarize yourself with proper operation and care
of this microphone.
General Characteristics
This microphone has a twenty millimeter gold-sputtered diaphragm and a xed cardioid
pickup pattern. Condenser microphones are very sensitive, readily revealing very subtle
sonic details. They also tend to pick up sounds outside the pattern more than some
designs, which can lead to powerful feedback if you are not careful. We strongly advise
experimentation with placement and isolation requirements with the gain initially set
low to avoid equipment (and ear) damage. It is strongly advised to use a mesh pop-
lter to avoid moisture from damaging the capsule.
Power Requirements
IMPORTANT - This unit requires phantom power at 48 volts, +/- 4 volts, in order to operate.
Each unit has been thoroughly checked before shipping, so if you do not hear sound,
check that the phantom power on your mixer or separate power supply is switched on.
Microphone Cable
The microphone cable can have a profound effect on the sound of any microphone.
Even the nest microphone will sound poor if the interconnect cable allows noise to
enter or causes distortion and loss of information. We recommend that you use the best
microphone cable that your budget will allow.
Shock Mount
Your shock mount can shift in shipment. Simply shift the nylon bands to center the
microphone in the assembly. Be sure that the wire clamp does not rest on the chassis of
the mount, as this impairs mechanical isolation. Slide the mount all the way to the rim
of the microphone for the most secure hold.
Contents
Bass Roll-Off Switch
The 770 features a bass roll-off switch to help reduce proximity effect. Proximity effect
is distortion that often occurs when a sound source is too close to the mic. Some
microphone patterns boost bass as you get closer to the micro-Phone; cardioid mies,
for instance, tend to boost bass. The bass roll-off switch reduces the low frequencies for
a more full range sound.
-10dB Switch
The 770 can be used in very loud sonic environments without signicant distortion. If
you hear distortion from the microphone, engage the “-10dB pad” on the rear of the
microphone to the -10dB position. You may also move the microphone farther away
from the sound source.
Care
Dust and foreign material can degrade the performance of a microphone over time,
so always store the unit in its box. For vocals closer than 3”, use a pop lter or a foam
windscreen to avoid getting moisture on the diaphragm as this can substantially
degrade the microphone’s performance. Store the microphone in its original packaging
in a cool, dry place along with the included packet of silica gel.
Warranty
MXL microphones are guaranteed against defects in materials and workmanship for one
year from the date of purchase. If you encounter any problem with this unit, promptly
contact the company from which you purchased it for assistance. The original dated
sales receipt will be necessary for any warranty claim. Do not send any unit directly
to us without prior authorization from our service department. Warranty coverage is
limited to repair or replacement (at our option) of the microphone, and does not cover
incidental damages due to use of this unit, nor damage caused by accidental misuse
of this product.
Specications, Frequency Chart and Polar Pattern on next page.
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