User Manual
Subminiature Cardioid Condenser Clip-On Microphones
MT828a / MT828cW / MT828cH
■
Features
■
Notes on use
■
Connection procedure
This product requires 48 V
DC phantom power.
Output terminals
PIN1 (ground)
PIN3
(cold)
PIN2 (hot)
■
Specifications
Fixed-charge back plate, permanently polarized condenser
Cardioid
100 - 12,000 Hz
80 Hz, 12 dB/octave (wired only)
-64 dB (0.63 mV) re 1V at 1 Pa
1,600 ohms (capsule)
1 - 10V DC (capsule)
11-52 V DC, 2 mA typical (wired only)
1.5V AA (wired only)
2.0 mA / 1200 hours (wired only)
0.2 mA typical at 5V (wireless only)
Power module: 83.0 mm height, 63.0 mm width
2.5-10V (wireless only)
Microphone: 19.4 mm long, 7.5 mm diameter
•
1 Pascal = 10 dynes/cm
2
= 10 microbars = 94 dB SPL
*
Typical, A-weighted, using Audio Precision System One.
■
Polar pattern
■
Frequency response
■
Cable Terminations
180°
150°
120°
30°
0°
330°
300°
270°
240°
210°
10 dB
1k
10k
100k
100
10
Audio-Technica Corporation
2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan
©2017 Audio-Technica Corporation
Global Support Contact: www.at-globalsupport.com
20-AUG--2020 Form No.ATGC-L0378-20
Response in dB
Frequency in Hertz
LEGEND
0°, 50cm
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
200 Hz
1 kHz
5 kHz
8 kHz
Thank you for purchasing this product. Before using the product, read through the user
manual to ensure that you will use the product correctly.
Please keep this manual for future reference.
MT828a wired version includes a power module AT8531 that requires 11V to 52V DC
phantom power, or a 1.5V AA battery for operation. A battery need not be in place for
phantom power operation. The output of the power module is a 3-pin XLRM-type connector.
An integral 80Hz high-pass filter provides easy switching from a flat frequency response to a
low-end roll-off. The roll-off position reduces the pickup of low-frequency ambient noise
(such as traffic, air-handling systems, etc.), room reverberation and mechanically coupled
vibrations.
MT828cW and MT828cH wireless versions do not contain power module and includes
clothing clip and metal-frame pop filter only. 1.6 m cable terminated with locking 4-pin
connector. The connector is also compatible with Audio-Technica cW and cH type
body-pack transmitters.
Avoid leaving the microphone in the open sun or in areas where temperatures exceed 43°C
for extended periods. Extremely high humidity should also be avoided.
Connect the output terminals of AT8531 power module to a device that has a microphone
input (balanced input) compatible with a phantom power supply. The output connector is
an XLRM-type with polarity as
shown in the figure below.
For product improvement, the product is sublect to modification without notice.
10
0
-10
-20
-30
20
• Maximum intelligibility and clean, accurate reproduction for lecturers, stage and television
talent, and worship leaders
• Low-profile design is ideal for applications requiring minimum visibility
• Includes a wire clothing clip and a metal-frame pop filter
• MT828a wired version's power module (AT8531) includes a high-pass filter that provides a
steep low-frequency attenuation to improve sound pickup without affecting voice quality
• The power module of MT828a can be operated on battery or phantom power
• Wireless version equipped with cW-style locking or cH-style screw-down 4-pin termination
for Audio-Technica wireless systems
■
Safety precaution
■
Cautions for the product
Although this product was designed to be used safely, failing to use it correctly may result in
an accident. To ensure safety, observe all warnings and cautions while using the product.
• Do not subject the product to strong impact to avoid malfunction.
• Do not disassemble, modify or attempt to repair the product.
• Do not handle the product with wet hands to avoid electric shock or injury.
• Do not store the product under direct sunlight, near heating devices or in a hot, humid or
dusty place.
Integral 3-pin XLRM-type (Power module)
Element
Polar pattern
Frequency response
Low Frequency response
Open circuit sensitivity
Impedance
Operating Voltage
Phantom power requirements
Battery Type
Battery Current / Life
Current consumption
Voltage range
Dimensions
Output connector
Cable
1.6 m long (permanently attached to microphone),
Roll-off
Flat, roll-off (wired only)
Microphone, boom and earpiece: 7.5 g
Switch
Weight
Power module (wired only): 81.2 g
Included accessories
Wire clothing clip; metal-frame pop filter;
2.0 mm diameter, 2-conductor shielded cable
(termination dependent)
protective pouch;
(wired only) - AT8531 power module (MT828a)
60°
90°
MT828cW – Terminated with locking 4-pin connector for use with A-T UniPak
®
body-pack transmitters
MT828cT4 – Terminated using TA4F-type connector
MT828cLM3 – Terminated using locking 3.5 mm connector
MT828cH – Terminated with locking 4-pin connector for use with A-T CH body-pack transmitters
1
2
3
4
1
4
3
2
Tip
Ring
Sleeve
1
4
3
2
Pin 1
Pin 2
Pin 3
Pin 4
Function Ground / Shield Instrument
Mic Audio
Blas + In
Wire Colour Copper Wire
Jumper to Pin 1 White
3.3kΩ to Pin 3
Pin 1
Pin 2
Pin 3
Pin 4
Function Ground / Shield Blas + In
Mic Audio
Source Load
Wire Colour Copper Wire
3.3kΩ to Pin 3
White
Jumper to Pin 1
Pin 1
Pin 2
Pin 3
Pin 4
Function Ground / Shield Instrument
Mic Audio
Blas + In
Wire Colour Copper Wire
Jumper to Pin 1 White
3.3kΩ to Pin 3
Sleeve
Ring
Tip
Function Ground / Shield Mic Audio
Blas + In
Wire Colour Copper Wire
White
2.2kΩ to Ring
22.0 mm depth
MT828cL4 – Terminated using Lemo
®
connector
1
2
3
Pin 1
Pin 2
Pin 3
Shell / Case
Function N/C
N/C
Blas + In, Mic Audio Ground / Shield
Wire Colour Open
Open
White
Copper Wire
