USER’S GUIDE
Table of Contents:
Introduction ............................... 3
Overview ....................................4
Precautions ................................5
Installing Batteries ..................6
Mounting the MS-77
and Turning It On ................ 7-9
Using the Gain Boost ........... 10
The Windscreen .....................10
Replacing the Shock
Mount Suspenders .................11
Troubleshooting ..................... 12
Specifications ......................... 13
Warranty ...................................14
Thank you for choosing Senal.
The Senal MS-77 DSLR-Video Mini Shotgun Microphone Kit is designed for recording live audio
directly into your DSLR or camcorder. The MS-77’s hypercardioid polar pattern and shotgun design
optimize the microphone to focus on the subject while rejecting off-axis sound. Ideal for run-and-gun
productions like recording interviews and events indoors and in the field, the MS-77’s shock mount
attaches directly to a boom pole, and the metal shoe-mount adapter attaches to your camera’s shoe
mount. The MS-77 comes with two cables for on-camera and boom-pole mounting and plugs into the
camera’s audio input jack to deliver natural, professional-quality sound.
Among the benefits you’ll enjoy:
▪ Convenient, pen-sized microphone
▪ Hypercardioid polar pattern
▪ Adjustable gain
▪ Threaded audio cables for on-camera and boom mounting
▪ Included shock mount
▪ Metal shoe-mount adapter with 1/4″-20 threaded socket
▪ Approximately 100 hours battery life
Introduction
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3
Overview
Microphone
ports
Also Included:
7″ coiled cable
10′ straight cable
Foam windscreen
Replacement shock mount suspenders
User manual
Power switch
Gain switch
Suspenders/Tabs
Locking knob
1/4″-20 threaded socket
Threaded post
Locking wheels
Mounting foot
ON
OFF
0db
10dB
20dB
Audio
connection
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4
Overview
Precautions
▪ Please read and follow these instructions and keep this manual in a safe place.
▪ Keep this product away from water and flammable gases or liquids.
▪ Do not attempt to disassemble or repair this product yourself.
▪ Handle this product with care.
▪ Clean this product with only a soft, dry cloth.
▪ Make sure that this product is intact and that there are no missing parts.
▪ All photos are for illustrative purposes only.
Precautions
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5
Installing Batteries
The MS-77 runs on two 377 button cell batteries. To install batteries, make sure the MS-77 is turned off
and follow these steps:
1. Unscrew the base of the microphone to access the battery compartment.
2. Insert batteries in the orientation indicated by the illustration.
3. Close the battery compartment by screwing the base back on the microphone.
Important!
Replace both batteries at the same time. Do not mix battery types or brands or use old and new
batteries together.
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Installing Batteries
Mounting the MS-77 and Turning It On
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To mount the microphone to your camera, make sure the MS-77 is turned
off and follow these steps:
1. Rotate both locking wheels on the shoe-mount adapter clockwise,
making sure you have enough room to screw the shock mount onto the
threaded post.
2. Screw the shock mount all the way onto the threaded post of the shoe-
mount adapter.
3. Rotate the upper locking knob counterclockwise until secure.
4. Rotate lower locking wheel on shoe-mount adapter
counterclockwise to loosen it.
5. Slide the shoe-mount adapter all the way into your camera’s
shoe mount.
6. Rotate the lower locking wheel clockwise until secure.
Mounting the MS-77 and Turning It On
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7. Insert the microphone through the shock mount suspenders, ensuring that the suspenders grip the
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base of the microphone.
Note: Make sure the microphone barrel is not in contact with the shock mount suspenders, as this may
produce disruptive noise when recording. Rotate the microphone so the power and gain switches are
fully accessible through the shock mount’s top cutout
8. Screw the threaded end of the included 7″ audio cable into the MS-77’s audio connection.
9. Insert the 3.5 mm end of the cable into your camera’s audio input jack.
Tip: You can adjust the angle of the shock mount to tilt the microphone up or down.
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Mounting the MS-77 and Turning It On
To mount the microphone to a boom pole, make sure the MS-77 is turned off and follow these steps:
1. Match the threaded post on the end of the
boom pole with the threaded socket in the
MS-77’s shock mount.
2. Screw the boom pole into the threaded
socket until secure.
3 Insert the microphone into the shock mount, ensuring that the suspenders
grip the base of the microphone.
Note: Make sure the microphone barrel is not in contact with the shock mount suspenders, as this may
produce disruptive noise when recording.
4. Screw the threaded end of the included 10′ audio cable into the MS-77’s audio connection.
5. Insert the 3.5 mm end of the cable into your audio recorder’s audio input jack.
To turn the microphone on, slide the power switch to the ON position.
Mounting the MS-77 and Turning It On
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9
Using the Gain Boost
The gain boost switch increases the microphone’s gain and can be useful for picking up low-level or
distant sounds in a quiet environment. The gain boost switch has three stages: 0 dB, 10 dB, and 20 db.
To boost the microphone’s gain by ten decibels, slide the gain boost switch so it rests under the 10
dB marking. To boost the microphone’s gain by twenty decibels, slide the gain boost switch so it
rests under the 20 dB marking. To turn off the gain boost, slide the switch so it rests under the 0 dB
marking.
The Windscreen
The MS-77 comes with a foam windscreen that helps reduce wind noise. To
fit the windscreen onto the microphone, gently push it onto the microphone
barrel. Make sure that the windscreen covers all the ports on the sides of the
microphone barrel.
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Using the Gain Boost / The Windscreen
Replacing the Shock Mount Suspenders
The MS-77’s shock mount isolates the microphone from your camera or
boom pole. This helps prevent the microphone from picking up vibrations
in the camera or boom, which can cause disruptive and unwanted noise in
your recording.
The MS-77 comes with replacement suspenders for the shock mount. To
replace the suspenders, follow these steps:
1. Remove the old suspenders from the shock mount and set them aside.
2. Hook a new suspender around one of the tabs, and stretch the sus-
pender across the opening of the shock mount to hook it around the
opposite tab.
3. Repeat step 2 for the second suspender. The two suspenders should
form an X shape across the opening of the shock mount.
Replacing the Shock Mount Suspenders
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Troubleshooting
Problem Solution
The shock mount is stuck in the
camera’s shoe mount.
The microphone will not turn on. Make sure that fresh batteries are installed, and that they are
The sound is distorted or there is
noise in the recording.
Make sure the shock mount’s locking wheel is fully loosened.
in the proper orientation.
Make sure the base of the microphone is screwed on securely.
Make sure the microphone’s audio connection cable is fully
plugged into your camera’s audio input jack.
Turn off the gain boost on the microphone.
Make sure that the microphone is properly mounted in the shock
mount and that the barrel is not touching the suspenders.
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Troubleshooting
Specifications
Transducer type:
Pattern:
Back electret condenser
Hypercardioid
Frequency response: 30 Hz to 18 kHz
Impedance:
Sensitivity:
Audio connection:
Cable:
250 Ω ±30% (@ 1 kHz)
-42 dB ±3 dB (0 dB = 1 V/Pa @ 1 kHz)
3.5 mm (1/8″) stereo
Detachable
• 7″ (2″ straight + 3″ coiled + 2″ straight)
• 10′ straight
Power requirement:
Battery life:
Size:
Weight
Specifications
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Two 377 (SR6265W) button cell batteries
Approx. 100 hours continual use
0.5″ × 7.6″ (1.3 × 19.3 cm)
1.6 oz. (45 g)
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Ten-Year Limited Warranty
Senal provides a limited warranty to the original purchaser that this product is free from defects in materials
and workmanship under normal consumer use for a period of ten (10) years from the original purchase date
or thirty (30) days after replacement, whichever occurs later. Senal’s responsibility with respect to this limited
warranty shall be limited solely to repair or replacement, at Senal’s discretion, of any product that fails during
normal consumer use. Inoperability of the product or part(s) shall be determined by Senal. If the product has
been discontinued, we reserve the right to replace it with a model of equivalent quality and function.
To obtain warranty coverage, contact Senal to obtain a return merchandise authorization (“RMA”) number,
and return the defective product to Senal, along with the RMA number and proof of purchase. Shipment of
the defective product is at the purchaser’s own risk.
This warranty does not cover damage or defect caused by misuse, neglect, accident, alteration, abuse,
improper installation or maintenance. EXCEPT AS PROVIDED HEREIN, SENAL MAKES NEITHER ANY
EXPRESS WARRANTIES NOR ANY IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO ANY IMPLIED
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. This warranty provides you
with specific legal rights, and you may also have additional rights that vary from state to state.
© Copyright 2013 Gradus Group
All other trademarks are the property of their respective owners.
All photos are for illustrative purposes only.
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Warranty
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