Audio-Technica BP4025 Handleiding
Audio-Technica
Microfoon
BP4025
Lees hieronder de 📖 handleiding in het Nederlandse voor Audio-Technica BP4025 (2 pagina's) in de categorie Microfoon. Deze handleiding was nuttig voor 43 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld
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X/Y STEREO FIELD RECORDING MICROPHONE
- Designed for broadcast and professional recording, and eld
use
- Unique coincident capsule conguration produces accurate
stereo image in smaller housing
- Large-diaphragm capsules for pristine sound quality and
exceptionally low noise
- Compact, lightweight design is ideal for camera-mount use
- Excellent channel separation
- Integral 80 Hz HPF switch and 10 dB pad
The BP4025 is intended for use in professional applications
where remote power is available. It requires 11V to 52V DC
phantom power, which may be provided by an audio mixer, or by
a separate, in-line source such as the Audio-Technica AT8801
single-channel or AT8506 four-channel phantom power supplies.
Output for each stereo channel is low impedance (Lo-Z)
balanced. The balanced signals appear across Pins 2 and 3
for the left channel, Pins 4 and 5 for the right channel. Pin 1 is
ground (shield) for both channels. Output is “Pins 2 and 4 hot”
- positive acoustic pressure produces positive voltage at Pins 2
and 4.
Locating the BP4025 nearer the sound source enhances the
width of the stereo image, while decreasing room ambience.
Conversely, as the mic position moves away from the sound
source, a narrower left/right stereo image results and more of the
“room sound” is noted.
An integral 80 Hz high-pass lter provides easy switching from a
at 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.
The BP4025 is also equipped with a switchable 10 dB pad that
lowers the microphone's sensitivity, thus providing higher SPL
capability for exible use for a wide range of speakers/performers
and system congurations.
The microphone is RoHS compliant–free from all substances
specied in the EU directive on hazardous substances.
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.
FORM No. ATGC-L0140-08-E
10 dB
20k10k5k2k1k50020010050
Frequency Response
Frequency in Hertz
LEGEND 12” or more on axis
Response in dB
Machida • Tokyo • Japan
SPECIFICATIONS
ELEMENT Fixed-charge back plate
permanently polarized condenser
CHANNEL BALANCE <2.5 dB
POLAR PATTERN X/Y Stereo
FREQUENCY RESPONSE 20-17,000 Hz
LOW FREQUENCY ROLL-OFF 80 Hz, 12 dB/octave
OPEN CIRCUIT SENSITIVITY -32 dB (25.1 mV) re 1V at 1 Pa
IMPEDANCE 170 ohms
MAXIMUM INPUT SOUND LEVEL 145 dB SPL, 1 kHz at 1% T.H.D.;
155 dB SPL, with 10 dB pad
DYNAMIC RANGE (typical) 131 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO 80 dB, 1 kHz at 1 Pa
PHANTOM POWER REQUIRMENTS 11 - 52V DC, 7 mA (both channels)
SWITCHES Flat, roll-off; 10 dB pad (norminal)
WEIGHT (less cable and accessories) 269 g
DIMENSIONS 186.0 mm long,
47.6 mm head diameter,
21.0 mm maximum body diameter
OUTPUT CONNECTOR Integral 5-pin XLRM-type
CABLES 5.0m long, 8 conductor, shielded,
viny l-jac keted s tereo c able wi th
5- pin XL RF-ty pe c on nec tor at
mi cropho ne end a nd two 3- pi n
XLRM-type connectors at output
end
ACCESSORIES FURNISHED AT8405a sta nd clamp for ⅝"-27
threaded stands; windscreen; soft
protective pouch
Roll-off
200 Hz
0°
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
30°
200 Hz
Polar Pattern
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
LEFT RIGHT
1 kHz
0°
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
30°
1 kHz
Polar Pattern
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
LEFT RIGHT
8 kHz
0°
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
30°
8 kHz
Polar Pattern
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
LEFT RIGHT
10 dB
20k10k5k2k1k50020010050
频率特性
频率 (
赫兹)
电平 平直
响应电平 (dB)
FORM No. ATGC-L0140-08-C
X/Y立体声现场收音话筒
- 专为专业录音和广播采访的现场收音而设计。
- 独 特 的 配 对 式 收 音 头 ， 设 置 于 细 小 的 头 罩 内 ， 提
供精确的立体声收音性能。
- 大型收音膜片，可提供清澈的音色和特低的噪
音。
- 小型、轻量的设计，可夹持于摄像机上使用。
- 优良的通道分离效果。
- 设有 80Hz高通滤波和10dB衰减开关。
BP4025 11V 52V应用于专业收音工作， 要提供需 至
幻象供电工作，，可使用调音台上的幻象电源，也
可以使用鐵三角的AT8801 AT8506单通道或 四通道
幻象电源供电器作独立供电。
话筒的每通道输出端为低阻抗平衡输出，话筒音频
信号最终以卡农公头的2号 及 3号针脚作左通道输
出 ， 4号 及5号 针 脚 作 右 通 道 输 出 ， 而1号 针 脚 则 为
左 右 通 道 地 线 (屏 蔽 )连 接 输 出 相 位 将 以 正 相 位 电。
平设于2号和4号针脚上。
请 把 话 筒 放 置 于 接 近 音 源 的 位 置 ， 以 减 少B P 4 0 2 5
回音混响和提高立体声收音效果。远离音源时会收
窄立体声音像和增加“房问回声”混响。
内置高通滤波电路，可轻易由平直的频率响应，开
启为于8 0 H z 以下衰减的收音效果，应用高通滤波
器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。
BP4025 10dB话同并有 衰减开关，在高声压环境收
音时，减低话筒的灵敏度，避免破声的失真现象出
现。
话 筒 符 合 R o H S 规 格 ， 在 构 造 上 不 含 有 欧 盟 禁 用 的
危害性物质。
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。 Machida • Tokyo • Japan
技术指标
收音头 固定充电背板，
静电型电容式
通道平衡 <2.5 dB
指向特性 X/Y 立体声
频率响应 20-17,000 Hz
高通滤波 80 Hz, 12 dB/octave
开通灵敏度 -32 dB (25.1 mV) 以 1V 于 1 Pa
输出阻抗 170 欧姆
最大承受声压 145 dB 声压, 1 kHz 于 1% T.H.D. ;
155 dB 声压于 10dB 衰减
动态范围 (典型) 131 dB, 1 kHz
于最高声压
讯噪比 80 dB, 1 kHz 于 1 Pa
幻像供电 直流 11 - 52V, 耗电 7mA 典型每通道
开关 平直 / 高通滤波
; 10dB 衰减
重量 269 g
外形尺寸 186.0 mm 长,
47.6 mm 头罩直径
21.0 mm 机身最大直径
输出连接器 内置 XLRM-5针卡农公头
连线 平衡接线： 5.0 m 长，
8芯线屏蔽式
聚乙烯护套立体声电缆带 5针卡农母
头连接话筒，及两路3针卡农公头于
输出端。
附属品 AT8405a ⅝"-27接头转轴式支架；防
风罩；电池；保护软袋
高通滤波
200 Hz
0°
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
30°
200 Hz
指向特性
声压曲线1刻度
5 dB
频率
左收音头 右收音头
8 kHz
0°
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
30°
8 kHz
指向特性
声压曲线 1刻度
5 dB
频率
左收音头 右收音头
1 kHz
0°
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
30°
1 kHz
指向特性
声压曲线1刻度
5 dB
频率
左收音头 右收音头
Product specificaties
| Merk: | Audio-Technica |
| Categorie: | Microfoon |
| Model: | BP4025 |
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