Audio-Technica MT838IIa Manual

Audio-Technica Mikrofon MT838IIa

Læs gratis den danske manual til Audio-Technica MT838IIa (2 sider) i kategorien Mikrofon. Denne vejledning er vurderet som hjælpsom af 44 personer og har en gennemsnitlig bedømmelse på 3.9 stjerner ud af 22.5 anmeldelser. Har du et spørgsmål om Audio-Technica MT838IIa, eller vil du spørge andre brugere om produktet?

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SUBMINIATURE OMNIDIRECTIONAL CONDENSER CLIP-ON MICROPHONE
- Maximum intelligibility and clean, accurate reproduction for lecturers,
stage and television talent, and worship leaders.
- Low-prole design is ideal for applications requiring minimum visibility.
- Includes a wire clothing clip and a metal-frame pop lter.
- MT838IIa is switchable for low-frequency roll-off reduces sensitivity to
popping in close vocal use.
- MT838IIa can be operated on battery or phantom power.
- MT838IIcW is terminated for use with all Audio-Technica UniPak™
wireless systems.
The MT838IIa / MT838IIcW is worn on the clothing of performers
for excellent yet unobtrusive sound pickup. Its small size makes the
microphone ideal for use in applications where minimum visibility
is required. Clo se-up voice pickup i s crisp and cle an, and t he
omnidirectional polar pattern of the microphone assures nearly equal
sound pickup from every direction across a wide band frequencies.
The included clothing clip and metal-frame pop filter are removable.
When using the MT838IIa / MT838IIcW in extremely close situations, slip
the included metal-frame pop lter over the mic to reduce wind noise or
“poping”.
MT838IIa
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.
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 trafc, air-handling
systems, etc.), room reverberation and mechanically coupled vibrations.
Output from the power module’s XLRM-type connector is low impedance
(Lo-Z) balanced. The signal appears across Pins 2 and 3; Pin 1 is ground
(shield). Output phase is “Pin 2 hot” - positive acoustic pressure produces
positive voltage at Pin 2. To avoid phase cancellation and poor sound, all
mic cables must be wired consistently: Pin 1-to-Pin 1, etc.
MT838IIcW
Less power module and includes clothing clip and metal-frame pop lter
only. 1.8 m cable terminated with locking 4-pin connector for Audio-
Technica UniPak™ body-pack wireless transmitters.
Avoid leaving the microphone i n the open sun or in areas where
temperatures exceed 40°C for extended periods. Extremely high humidity
should also be avoided.
FORM No. ATGC-L0074-07-E
Machida • Tokyo • Japan
SPECIFICATIONS
ELEMENT Fixed-change back plate permanently
polarized condenser
POLAR PATTERN Omnidirectional
FREQUENCY RESPONSE 20-18,000 Hz
OPEN CIRCUIT SENSITIVITY -62 dB (0.79 mV) re 1V at 1 Pa (capsule)
IMPEDANCE 1800 ohms (capsule)
OPERATING VOLTAGE 1.5 -10V DC (capsule)
LOW FREQUENCY ROLL-OFF 80 Hz, 12 dB/octave (MT838IIa)
PHANTOM POWER REQUIREMENTS 11-52V DC, 2 mA typical (MT838IIa)
BATTERY TYPE 1.5V AA (MT838IIa)
BATTERY CURRENT / LIFE 2.0 mA / 1200 hours (MT838IIa)
SWITCHES (MT838IIa)Flat, roll-off
WEIGHT (less cable and accessories)
MICROPHONE
POWER MODULE (AT8531)
7.7 g
81.2 g
DIMENSIONS
MICROPHONE
POWER MODULE (AT8531)
21.5 mm - long,
6.5 mm - diameter
83.0 mm - H x 63.0 mm - W x
22.0 mm - D
OUTPUT CONNECTOR
MT838IIa (AT8531)
MT838IIcW
Integral 3-pin XLRM-type
locking 4-pin connector for UniPak™
CABLE 1.8 m long (permanently attached to
microphone), 2 mm diameter
ACCESSORIES FURNISHED Wire clothing clip;
metal-frame pop lter;
protective pouch.
AT8531 power module (MT838IIa)
10 dB
20k10k5k2k1k50020010050
8 kHz
200 Hz
1 kHz
5 kHz
0°
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
30°
Polar Pattern
Frequency Response
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
Frequency in Hertz
LEGEND 12” or more on axis
Response in dB
Roll-off (MT838IIa)
same as 1 kHz
10 dB
20k10k5k2k1k50020010050
8 kHz
200 Hz
1 kHz
5 kHz
0°
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
30°
指向特性
频率特性
声压曲线 1刻度5 dB
频率
频率 (赫兹)
电平 平直
响应电平 (dB)
FORM No. ATGC-L0074-07-C
Machida • Tokyo • Japan
全方向指向性微型夹式电容话筒
- 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，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。
- MT838IIa 设有高 通滤波开关 ，可减低 收音环境 中低 频噪声。
- MT838IIa 可使用 幻象供 电或电池供电工作 。
- MT83 8IIcW 输出端可连接所有鐵三角无线系统的Un iPak ™盒式 接
收机使用。
MT83 8IIa / MT838IIcW 是为戴 在表演者衣服 上，在不防碍外 观，但
有超卓收音效果而设计的微型电容话筒。全方向指向性收音，能有效
地提高收音效果，不需特别注意话筒的位置，已能确保演讲者、歌唱
家、舞台及 电视演员提供高度 清晰及准确的重播 。
话筒的元件封闭在一个坚固及低反光的外壳内，其内部构造设计得尽
量减少碰 撞时及衣服磨擦时的噪音。话筒提供一条长1. 8m的音 频线，
此外还包括 一个领带夹和金属 网防风罩。
MT8 38 II a
配有一个 供电模组，需要提供 至 幻象供电或AT8531 11V 52V 1.5V AA
电池操作， 当使用幻象电源操 作时，可以不安装 电池。
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。
供电模组的 卡农输出 端为 低阻抗平衡输出，话筒音频信号最终XLRM
以卡农公头的2号及3号针脚输出，而1号针脚则为地线(屏蔽)连 接。
输出相位将以正相位电平设于2号针脚上。为避免出现相位相互抵消
而失真的情况，所有话筒连接时，接线必需以1-1，2-2 ，3-3型式把
针脚连接。
MT8 38 II cW
不带供电模组，但提供领带夹和金属网防风罩，长1. 8m音频 线的输出
端可连接所 有鐵三角无线系统 的UniPak™盒式接收机。
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。
技术指标
收音头 固定充电背板，静电型电容式
指向特性 全方向指向性
频率响应 20-18,000 Hz
开通灵敏度 -62 dB (0.79 mV) 以 1V 于 1 Pa (收音单元)
输出阻抗 1,800 欧姆 (收音单元)
工作电压 1.5 -10V 直流 (收音单元)
高通滤波 80 Hz, 12 dB/octave (MT838IIa)
幻象供电 直流 11-52V, 耗电 3.5 mA 典型 (MT838IIa)
电池 1.5V 5
号电池 (MT838IIa)
耗电/电池寿命 2.0 mA / 1200 小时 (MT838IIa)
重量(不带连线与配件)
话筒
供电模组 (AT8531)
7.7 克
81.2
克
外形尺寸
话筒
供电模组 (AT8531)
21.5 mm -长度，6.5 mm -直径
83.0 mm -高，63.0 mm -宽，22.0 mm -厚
输出连接器
MT838IIa (AT8531)
MT838IIcW
内置
XLRM-3针卡农公头
UniPak™盒式发射机连接头
连线 1.8 m - 长，2 mm - 直径，话筒固定连接。
附属品 领带夹；金属网防风罩；保護袋。
AT8531 供电模组。(MT838IIa)
高通滤波 (MT838IIa)
与
1 kHz 曲线相同

Produkt Specifikationer

Mærke: Audio-Technica
Kategori: Mikrofon
Model: MT838IIa

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