Audio Technica ES945O/TB3 User manual

Product Information Miniature Omnidirectional Condenser Boundary Microphone ES945O/TB3
■Description
■Connection procedure
This product requires 48 V
DC phantom power.
Cable Output terminals
PIN1 (ground)
PIN3
(cold)
PIN2 (hot)
■Specifications
Fixed-charge back plate, permanently polarized condenser
Omnidirectional
60 - 15,000 Hz
-33 dB re 1V at 1 Pa
100 ohms
131 dB SPL (1 kHz at 1% THD)
109 dB (1 kHz at Max SPL)
73 dB (1 kHz at 1 Pa, A-weighted)
11-52 V DC, 2 mA
31 g
60.5 mm long, 20 mm head diameter
Integral 3-pin TB3M-type
•1 Pascal = 10 dynes/cm2 = 10 microbars = 94 dB SPL
*Typical, A-weighted, using Audio Precision System One.
■Polarpattern
■Frequency response
Audio-Technica Corporation
2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan
©2017 Audio-Technica Corporation
Global Support Contact: www.at-globalsupport.com
22-FEB-2021 Form No.ATGC-L0404-21
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.
ES945O/TB3 omnidirectional boundary microphone is an even smaller footprint and a great choice for
installations with limited space or where a very clean, inconspicuous look is desired. The miniature size also
gives you the same clear, highly intelligible audio of its larger sibling, mounting unobtrusively in tabletops,
ceilings or panels for conferencing, recording, monitoring and other demanding sound pickup applications.
Protected by a rugged all-metal case with a two-layer steel mesh grille, the microphone’s omnidirectional polar
pattern affords a 360° pickup angle, while its UniGuard® RFI-shielding technology provides outstanding
rejection of radio frequency interference (RFI).
The ES945O/TB3 is equipped with a self-contained power module with a TB3M (mini-XLR) output connector,
eliminating the need for an external power module. The power module can be powered from any external 11V
to 52V DC phantom power supply. It also comes with a TA3F-to-XLR cable, allowing for installation with
standard XLR inputs. The microphone is black colour, and comes with a pair of rubber isolators for optional
mechanical isolation from the mounting surface.
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 the microphone cable to a device that has a microphone input
(balanced input) compatible with a phantom power supply. The cable connector is an XLRM-type
with polarity as shown in the figure below.
For product improvement, the product is sublect to modification without notice.
■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.
Black
Element
Polar pattern
Frequency response
Open circuit sensitivity
Impedance
Maximum input sound level
Dynamic range (typical)
Signal-to-noise ratio*
Phantom power requirements
Weight
Dimensions
Output connector
Colour
Included accessories Rubber isolator x 2, Nut,
7.6 m Microphone cable (TA3F, XLRM)
■Features
• Designed for surface-mount applications such as conferencing, recording, monitoring and other demanding
sound pickup applications
• Low-profile element provides uniform omnidirectional polar pattern with 360° acceptance angle
• Miniature, space-saving design enables highly inconspicuous tabletop, ceiling and wall mounting
• Self-contained power module with TB3M (mini-XLR) output connector
• Includes a TA3F-to-XLR cable for use with standard XLR inputs
• Rugged all-metal case with a two-layer perforated grille
• Rubber Isolators provide mechanical dampening of mounting-surface vibration
• Requires 11V to 52V DC phantom power
• UniGuard® RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
30°
0°
Ø 14.5
Ø 17
60.5
53.8
Ø 20
■Dimensions
(Unit: mm)
Table/ceiling hole size
When using isolators
When not using isolators
Table
Rubber isolators
Nut
M14P=1
Response in dB
Frequency in Hertz
LEGEND
0°, 50cm
10 dB
1k 10k 100k10010
10
0
-10
-20
-30
20

小型全指向性电容式界面话筒 ES945O/TB3
本产品使用直流 48V 幻象电源。
连接线输出端子
针脚1（接地）
针脚3
（负）
针脚2（正）
■ 规格
固定充电背板，永久极化电容体
全指向性
60 - 15,000 Hz
-33 dB（0dB = 1V/Pa，1kHz）
100 欧姆
131 dB SPL（1kHz 于 1％ THD）
长 60.5 毫米，收音头直径 20 毫米
内置 TB3M 型 3 针小型卡农公头
黑色
元件
指向性
频率响应
开路灵敏度
阻抗
最大输入声压级
109 dB （1kHz 于最大声压级）
73 dB （1kHz于1Pa，A计权）
动态范围（典型）
信噪比*
尺寸
输出接口
颜色
附带配件橡胶防震垫片 x 2，螺母，
7.6米长话筒连接线（TA3F，XLRM）
• 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
■尺寸
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
产品信息
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。
■说明
ES945O/TB3 全指向性电容式界面话筒有更小巧的机身，是在空间有限或需要非常整洁
而不显眼安装的理想选择。细小的尺寸而又有同样清晰而通透的收音，可以隐蔽地安装
在桌面、天花板或控制面板上，非常适合会议、录音、监听和其他要求苛刻的收音应用
。
话筒采用坚固的全金属外壳和两层穿孔保护网格，其全指向性模式提供了360°的收音角
度，而话筒配有 UniGuard® RFI 屏蔽技术可以有效地抑制射频干扰。
ES945O/TB3 配备了TB3M型 (mini-XLR) 输出连接器的独立供电模组，从而无需外部电
源元件，该供电模组使用直流 11V 至 52V 幻象供电。附有 TA3F 至 XLR 话筒连接线，可
安装到标准 XLR 输入端的器材。
话筒为黑色外观，并配有一对橡胶防震垫片，用于可阻隔安装表面的机械式振动。
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
将话筒连接线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。连接
线输出接口是 XLRM 型接口，其极性如下图所示。
22-FEB-2021 Form No.ATGC-L0404-21
■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。
• 设切勿让本产品遭受强烈冲击，以避免发生故障。
• 屏切勿拆开、改装或尝试维修本产品。
• 独切勿用湿手握持本产品，以免触电或受伤。
• 小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。
直流 11-52V，2mA 典型
31 克
幻象供电
重量
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
30°
0°
■特点
• 专为会议、录音、监听和其他要求苛刻的收音应用等表面安装应用而设计
• 薄型元件提供均匀的全方向指向性，收音角度为360°
• 小型而节省空间的设计，可以不显眼地安装在桌面，天花板和控制面板上
• 带 TB3M 型 (mini-XLR) 型输出连接器和內置式供电模块
• 附有 TA3F 至 XLR 连接线，可对应标准 XLR 输入端器材
• 坚固的全金属外壳，配有两层穿孔保护网格
• 橡胶防震片可阻隔安装表面的机械式振动
• 使用 11V 至 52V 直流幻像电源
• UniGuard® RFI 屏蔽技术可有效地抑制射频干扰
10 dB
1k 10k 100k10010
10
0
-10
-20
-30
20
Ø 14.5
Ø 17
60.5
53.8
Ø 20
（单位：毫米）
桌面/天花板孔尺寸
使用防震垫片时
不使用防震垫片时
桌面
橡胶防震垫片
螺母
M14P=1