Audio-Technica AT4049b Handleiding
Audio-Technica
Microfoon
AT4049b
Lees hieronder de 📖 handleiding in het Nederlandse voor Audio-Technica AT4049b (2 pagina's) in de categorie Microfoon. Deze handleiding was nuttig voor 15 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld
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OMNIDIRECTIONAL CONDENSER MICROPHONE
- Specially engineered to meet the most critical acoustic requirements
of professional recording, broadcast and sound reinforcement
- Direct-coupled, balanced output results in a clean signal even under
high-output conditions
- Transformerless circuitry virtually eliminates low-frequency distortion
and provides superior correlation of high-speed transients
- Switchable 80 Hz hi-pass lter and 10 dB pad
- Rugged turned-brass microphone housing for enduring
dependability
- State-of-the-art design and manufacturing techniques ensure
compliance with A-T’s stringent consistency and reliability standards
The AT4049b is intended for use in professional applications where
remote power is available. It requires 48V DC phantom power, which
may be provided by a mixer or console, or by a separate, in-line
source such as the Audio-Technica AT8801 single-channel or AT8506
four-channel phantom power supplies.
Output from the microphone'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.
An integral 80 Hz hi-pass filter provides easy switching from a flat
frequency response to a low-end roll-off. The high-pass position
reduces the microphone's sensitivity to popping in close vocal use.
It also reduces the pickup of low-frequency ambient noise (such
as traffic, air-handling systems, etc.), room reverberation and
mechanically coupled vibrations.
The AT4049b consists of two modular subassemblies: an
AT4900b-48 body and an AT4049b-EL head capsule (both available
separately). Additional interchangeable capsules are available in
cardioid (AT4051b-EL) and hypercardioid (AT4053b-EL).
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-L0156-09-E
Machida • Tokyo • Japan
SPECIFICATIONS
ELEMENT Externally polarized (DC bias)
capacitor
POLAR PATTERN Omnidirectional
FREQUENCY RESPONSE 20-20,000 Hz
OPEN CIRCUIT SENSITIVITY -34 dB (19.9 mV) re 1V at 1 Pa
IMPEDANCE 50 ohms
MAXIMUM INPUT SOUND LEVEL 146 dB SPL, 1 kHz at 1% T.H.D.;
155 dB SPL, with 10 dB pad (nominal)
NOISE 16 dB SPL
DYNAMIC RANGE (typical) 129 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO 78 dB, 1 kHz at 1Pa
LOW FREQUENCY ROLL-OFF 80 Hz, 12 dB/octave
PHANTOM POWER REQUIREMENTS 48V DC, 4.8 mA typical
SWITCH Flat, roll-off; 10 dB pad (nominal)
WEIGHT (less accessories) 130 g
DIMENSIONS 155.0 mm - long,
21.0 mm - maximum body diameter
OUTPUT CONNECTOR Integral 3-pin XLRM-type
ACCESSORIES FURNISHED AT8405a stand clamp for ⅝”-27
threaded stand; windscreen;
protective carrying case
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
Optional Accessories:
AT4051b-EL cardioid microphone capsule.
AT4053b-EL hypercardioid microphone
capsule.
AT8506 four-channel 48V phantom power
supply (AC powered).
AT8801/EU single-channel 48V phantom
power supply (AC powered).
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-L0156-09-C
Machida • Tokyo • Japan
全方向指向性电容话筒
- 特别按专业录音、广播和增强音色的重要要求而设计。
- 直接偶合式平衡输出，在高输出情况下仍有清色的音色
表现。
- 无变压器输出电路，可减少低频失真和提高瞬间响应的清晰
度。
- 设有80Hz高通滤波及10dB衰减开关。
- 经消光加工铜制外壳，结实而具耐久性。
- 以鐵三角公司先进的电子技术和工艺水平制造，保持一
定的严密标准和可靠性。
AT4049b 48V需要使用 幻象供电工作，可使用专业调音台上
的幻象电源，也可以使用 三角的鐵 AT8801 AT8506单通道或
四通道幻象电源供电器作独立供电
低阻抗的平衡音频输出，话筒音频信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。
为濶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。
内置高通滤波电路，可轻易由平直的频率响应，开启为于
80Hz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。
AT4049b AT4049b-EL 全 方 向 指 向 话 筒 以 收音头及
AT4900b-48 筒身组合。可自由转换收音头：AT4051b-
EL ( 心形指向性) 或 AT4053b-EL (超心形指向性)。
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 直流偏压型电容式
指向特性 全方向指向性
频率响应 20-20,000 Hz
开通灵敏度 -34 dB (19.9 mV) 以 1V 于 1 Pa
输出阻抗 50 欧姆
最大承受声压 146 dB 声压, 1 kHz 于 1% T.H.D.;
155 dB 声压 于 10dB 衰减
噪声 16 dB 声压
动态范围 (典型) 129 dB, 1 kHz 于最高声压
讯噪比 78 dB, 1 kHz 于 1Pa
高通滤波 80 Hz, 12 dB/octave
幻象供电 直流 48V，耗电 4.8 mA 典型
开关 平直 / 高通滤波；10dB衰减
重量 130 克
外形尺寸 155.0 mm - 长度
,
21.0 mm - 最大直径
输出连接器 内置 XLRM-3针卡农公头
附属品 AT8405a ⅝”-27接头转轴式支架，
海棉防风罩，保護袋。
选择配件 :
AT4051b-EL 心形向性收音头。
AT4053b-EL 超心形向性收音头。
AT8506 四通通48V幻象供电器 (
交流供
电)。
AT8801/EU 单通道48V幻象供电器 (交
流供电 )。
高通滤波
Product specificaties
| Merk: | Audio-Technica |
| Categorie: | Microfoon |
| Model: | AT4049b |
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