Audio Technica MT828a User manual

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/cm2 = 10 microbars = 94 dB SPL
*Typical, A-weighted, using Audio Precision System One.
■Polarpattern ■Frequency response
■Cable Terminations
180°
150°
120°
30°
0°
330°
300°
270°
240°
210°
10 dB
1k 10k 100k10010
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
32
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

心形指向性微型夹式电容话筒 MT828a / MT828cW / MT828cH
本产品使用直流 48V 幻象电源。
输出端子
针脚1（接地）
针脚3
（负）
针脚2（正）
■规格
固定充电背板，静电型电容式
心形指向性
100 - 12,000 Hz
80 Hz，12 dB/octave (有线型号)
-64 dB（0.63mV) re 1V at 1Pa
1,600 欧姆 (收音单元)
0.2 mA 典型于 5V (无线型号)
2.5-10V (无线型号)
元件
指向性
频率响应
高通滤波
开路灵敏度
阻抗
1-10V 直流 (收音单元)
直流 11-52V，2mA 典型 (有线型号)
工作电压
幻象供电
耗电
电压范围
• 1 帕＝ 10 达因/平方厘米＝ 10 微巴＝ 94 dB SPL
*
典型，A 计权，使用 Audio Precision System One
因产品改进，本产品会随时改装，恕不另行通知。
■指向性 ■频率响应
■接线端子
Audio-Technica Corporation
2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan
©2017 Audio-Technica Corporation
全球支持联系：www.at-globalsupport.com
响应单位是 dB
频率单位是赫兹
图例
0°，50 厘米
比例是每分隔线 5 分贝
图例
200 赫兹
1 千赫兹
5 千赫兹
8 千赫兹
用戶手冊
感谢您购买本产品。在使用产品之前，请全文浏览本用户手册以确保您将正确地
使用本产品。请妥善保存本手册，以供将来参考。
■产品特点
• 高集成结构，清晰及准确的收音，可在教学、舞台、电视广播及宗教仪式上使用
• 小型及不显眼设计，收音头直径只为7.3 mm，合适于需要稳藏话筒的场合使用
• 配有一领带夹和金属网防风罩
• MT828a 有线版本的电源模块(AT8531)设有高通滤波器，可提供陡峭的低频衰减
，从而改善声音拾取，而不会影响语音质量
• MT828a 的电源模块可使用幻象供电或电池供电工作
• 无线版本的锁固式4针话筒输出端子，可配套连接于有线供电模组，或所有鐵三角
Audio-Technica cW 或 cH 型的盒式无线发射机
■使用注意事项
MT828a 有线版本配有一个AT8531供电模组，需要提供11V至52V幻象供电或1.5V
AA电池操作，当使用幻象电源操作时，可以不安装电池，供电模组的输出端为内置
3 针XLRM 卡农公头。
供电模组内置高通滤波电路，可轻易由平直的频率响应，开启为于80 Hz以下衰减
的收音效果，应用高通滤波器可减低话筒在近距离讲话收音时的喷气声，并可减低
收音环境中低频噪声(如外间汔车引擎声，空调系统的风声等)，房间中的回声及机
械性的震动声。
MT828cW 和 MT828cH 无线版本不带供电模组，但提供领带夹和金属网防风罩，
长1.6m音频线输出，可配置于所有鐵三角Audio-Technica cW 或 cH 型的盒式无线
发射机中。
把话筒暴露于高温中可能导致输出电平逐渐及永久性减弱，应避免将话筒留在日晒
的地方或长时间置于温度超过43°C的地方，而极高湿度也应避免。
■连接步骤
将AT8531 供电模组的输出端子连接到具有兼容幻象电源的话筒输入（平衡输入）
的设备。输出接口是 XLRM 型接口，其极性如下图所示。
20-AUG-2020 Form No.ATGC-L0378-20
■安全预防措施
■本产品注意事项
虽然本产品采用安全设计，但使用不当仍可能发生事故。为了确保安全，使用本
产品时请注意全部警告和提醒。
• 切勿让本产品遭受强烈冲击，以避免发生故障。
• 切勿拆开、改装或尝试维修本产品。
• 切勿用湿手握持本产品，以免触电或受伤。
• 切勿将本产品存放在阳光直射的地方、加热装置附近或者炎热、潮湿或多尘的
地方。
高通滤波
1.5V 5号电池 (有线型号)
2.0 mA / 1200 小时 (有线型号)
电池
耗电/电池寿命
180°
150°
120°
30°
0°
330°
300°
270°
240°
210°
10 dB
1k 10k 100k10010
10
0
-10
-20
-30
20
60°
90°
MT828cW ‒ 以锁固式4式针端子，使用于鐵三角 A-T UniPak® 盒式无线发射机
1
2
3
4
1
4
3
2
Tip
Ring
Sleeve
针脚1针脚2针脚3针脚4
功能 地线 / 屏蔽 乐器 话筒音频 偏压+输入
导线颜色 祼铜线 与 针脚1 跳线 白色 接3.3kΩ至针脚3
针脚1针脚2针脚3针脚4
功能 地线 / 屏蔽 偏压+输入 话筒音频 音源负载
导线颜色 祼铜线 接3.3kΩ至针脚3 白色 与 针脚1 跳线
Sleeve Ring Tip
功能 地线 / 屏蔽 话筒音频 偏压+输入
导线颜色 祼铜线 白色 接2.2kΩ至Ring
MT828cT4 ‒ 以TA4F端子
MT828cLM3 ‒ 以锁固式3.5 mm端子
收音头: 长 19.4 mm, 直径 7.3 mm
内置式 3 针卡农公头
尺寸
输出端子 (供电模组)
连接线 长 1.6 米 (固定连接于话筒), 直径 2.0 mm ,
平直，高通滤波 (有线型号)
收音头(不含连线): 7.5 克
开关
重量 供电模组 (有线型号): 81.2 克
附带配件领带夹；金属网防风罩；便携保护袋;
2芯屏蔽式连线并配置连接端子
(连接端子类型视乎不同型号)
(有线型号)- AT8531供电模组
供电模组: 高 83.0 mm, 宽 63.0 mm, 厚 22.0 mm
MT828cH ‒ 以锁固式4式针端子，使用于鐵三角 A-T CH型 盒式无线发射机
针脚1针脚2针脚3针脚4
功能 地线 / 屏蔽 乐器 话筒音频 偏压+输入
导线颜色 祼铜线 与 针脚1 跳线 白色 接3.3kΩ至针脚3
1
4
32
1
2
3
针脚1针脚2针脚3外壳
功能 空置 空置 偏压+输入，话筒音频 地线 / 屏蔽
导线颜色 不连接 不连接 白色 祼铜线
MT828cL4 ‒ 以Lemo® 端子