Audio-Technica ATM73a Manual de Usario

Audio-Technica Auriculares ATM73a

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CARDIOID CONDENSER HEADWORN MICROPHONE
- Ideal for drummers, keyboard players or anyone requiring hands-free
operation.
- Comfortable, unobtrusive headband design with side-of-mouth pickup.
- Belt-mounted power module operates on battery or phantom power.
- Cardioid polar pattern improving isolation of desired sound source.
- Also available as: ATM73cW - less power module; 1.4m cable terminated
with locking 4-pin connector for A-T UniPak
™ wireless systems.
The ATM73a required 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.
Battery installation: Remove the cap from the top of the power module.
Insert a fresh 1.5V AA battery (“+” end toward the cap release button),
then reassemble the power module. Alkaline batteries are recommended
for longest lift. Remove the battery during long-term storage.
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.
An integral 80Hz high-pass UniSteep® filter provides easy switching
from a at frequency response to a low-end roll-off. The roll-off position
reduces the microphone’s sensitivity to popping in close vocal use. It also
reduces the pickup of low-frequency ambient noise (such as trafc, air-
handling systems, etc.), room reverberation and mechanically coupled
vibrations.
For maximum stability and minimum visibility, the headband should be
worn around the back of the head, with each cushioned support pad
resting on the temple in front of the ear. The cable should remain clipped
to the headband, with slack at the boom connection. The headset is
designed so the microphone descends from the left support pad.
Avoid leaving the microphone in the open sun or in areas where
temperatures exceed 40°C for extended periods. Extremely high humidity
should also be avoided.
FORM No. ATGC-L0035-06-E
Machida • Tokyo • Japan
SPECIFICATIONS
ELEMENT Fixed-change back plate permanently
polarized condenser
POLAR PATTERN Cardioid
FREQUENCY RESPONSE 40-15,000 Hz
LOW FREQUENCY ROLL-OFF 80 Hz, 18 dB/octave
OPEN CIRCUIT SENSITIVITY
(Phantom / Battery)
-55 dB (1.7 mV) /
-56 dB (1.5 mV) re 1V at 1 Pa
IMPEDANCE (Phantom / Battery) 200 ohms / 270 ohms
MAXIMUM INPUT SOUND LEVEL
(Phantom / Battery)
146 dB / 132 dB SPL,
1 kHz at 1% T.H.D.
DYNAMIC RANGE (typical)
(Phantom / Battery)
111 dB / 97 dB,
1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO 59 dB, 1 kHz at 1 Pa
PHANTOM POWER REQUIREMENTS 11-52V DC, 2 mA typical
BATTERY TYPE 1.5V AA/UM3
BATTERY CURRENT/LIFE 0.4 mA / 1200 hours typical (alkaline)
SWITCHES Off, on-at, on-roll-off
WEIGHT MICROPHONE
POWER MODULE
31 g
139 g
DIMENSIONS HEADSET
MICROPHONE
POWER MODULE
165.0 mm - nominal at widest point,
67.0 mm - exible boom,
10.0 mm - diameter,
84.0(H) x 63.0(W) x 22.9(D) mm
OUTPUT CONNECTOR Integral 3-pin XLRM-type
CABLE 1.4 m long (permanently attached to
microphone), 2.6 mm diameter,
2-conductor shielded cable with TA3F-
type connector
ACCESSORIES FURNISHED AT8531 power module;
AT8128 windscreen;
AT8125l windscreen; battery
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
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-L0035-06-C
Machida • Tokyo • Japan
心形指向性头戴夹式话筒
- 专为鼓手、键盘手及其他乐手提供免提型话音收音。
- 提供舒适及不显眼的设计，及近距离收音。
- 配置盒式供电模组，可使用电池或幻象供电操作。
- 心形指向性收音，能有效减低旁边及后方的杂声干扰。
- 设有 ATM73cW - 1.4m型号 不设供电模组， 长连线，专为鐵
三角UniPak™无线系统使用。
ATM73a 11V 52V应用于专业收音工作，需要提供 至 幻象供电
或 电池操作，当使用幻象电源操作时，可以不安装电1.5V AA
池。
安装电池时，把供电模组顶部的电池盒盖打开，确认电池的
极性 (跟随电池盒内的标记)，放入一枚新的1.5V AA电池，再
盖回电池盖。建议使用碱性电池，而长时间不使用时，请把
电池取出。
供电模组的 卡农输出端为低阻抗平衡输出，话筒音频信XLRM
号最终以卡农公头的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。
内置 UniSteep®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。
作出最大的稳定性及最小的阻碍，请把话筒头环调校至头的
后方，并把两旁的垫子轻贴在太阳穴的位置。连接线应夹持
于头环上，并应提供一些松弛给话筒杆活动。收音头设计于
右方，配戴时请注意话筒的方向。
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 心形指向性
频率响应 40-15,000 Hz
高通滤波 80 Hz, 18 dB/octave
开通灵敏度 (幻象供电 /
电池)
-55 dB (1.7 mV) /
-56 dB (1.5 mV) 以 1V 于 1 Pa
输出阻抗 (幻象供电 / 电池) 200 / 270 欧姆
最大承受声压 (幻象供电 /
电池)
146 dB /
132 dB 声压, 1 kHz 于 1% T.H.D.
动态范围 (幻象供电 /
电池) 111 dB / 97 dB, 1 kHz 于最高声压
讯噪比 59 dB, 1 kHz 于 1 Pa
幻象供电 直流 11-52V, 耗电
2 mA 典型
电池种类 1.5V AA型 5号电池
耗电/电池寿命 0.4 mA / 1200小时 (碱性电池)
开关 关闭、开启-平直、开启-高通滤波
重量 话筒 / 供电模组 31 克 / 139 克
外形尺寸 头环
 话筒
 供电模组
165.0 mm - 宽度,67.0 mm - 话筒杆
10.0 mm - 直径
84.0(高) x 63.0(宽
) x 22.0(厚) mm
输出连接器 - 供电模组 内置 XLRM-3针卡农公头
连线 1.4 m - 长, 2.6 mm - 直径，话筒固
定连接，一端为TA3F屏蔽接头。
附属品 AT8531 供电模组；
AT8128 防风棉；AT8125 防风棉；
电池
高通滤波

Especificaciones del producto

Marca: Audio-Technica
Categoría: Auriculares
Modelo: ATM73a

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