Audio-Technica AT4047/SV Manual

Audio-Technica Mikrofon AT4047/SV

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CARDIOID CONDENSER MICROPHONE

- Transformer-coupled output and a specially tuned element provide

warm sonic characteristics reminiscent of early F.E.T. studio microphone

designs

- Exceptionally wide dynamic range, low self-noise and high SPL

capability for maximum versatility

- Dual-diaphragm capsule design maintains precise cardioid pattern

denition across the full frequency range of the microphone

- Precision-machined, nickel-plated brass, acoustic element bafe

provides enhanced element stability and optimal sensitivity

- State-of-the-art surface-mount electronics ensure compliance with A-T’s

stringent consistency and reliability standards

The AT4047/SV 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 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.

In use, secure the cable to the mic stand or boom, leaving a slack loop at

the mic. This will ensure the most effective shock isolation and reduce the

possibility of accidentally pulling the microphone out of its mount.

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-L0145-08-E

Machida • Tokyo • Japan

SPECIFICATIONS

ELEMENT Externally polarized (DC bias)

condenser

POLAR PATTERN Cardioid

FREQUENCY RESPONSE 20-18,000 Hz

OPEN CIRCUIT SENSITIVITY -35 dB (17.7 mV) re 1V at 1 Pa

IMPEDANCE 250 ohms

MAXIMUM INPUT SOUND LEVEL 149 dB SPL, 1 kHz at 1% T.H.D.

156 dB SPL, with 10 dB pad (normal)

NOISE 9 dB SPL

DYNAMIC RANGE (typical) 140 dB, 1 kHz at Max SPL

SIGNAL-TO-NOISE RATIO 85 dB, 1 kHz at 1Pa

LOW FREQUENCY ROLL-OFF 80 Hz, 12 dB/octave

PHANTOM POWER REQUIREMENTS 48V DC, 3.0 mA typical

SWITCHES Flat, roll-off; 10 dB pad (nominal)

WEIGHT (less accessories) 410 g

DIMENSIONS 170.0 mm - long,

53.4 mm - maximum body diameter

OUTPUT CONNECTOR Integral 3-pin XLRM-type

ACCESSORIES FURNISHED AT8449/SV shock mount for

5/8”-27 threaded stands;

microphone dust cover;

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:

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-L0145-08-C

Machida • Tokyo • Japan

心形指向性电容话筒

- 变压器耦合输出和经调谐的收音元件提供温暖的声音特质，让

人回忆到早期的FET录音话筒设计。

- 极宽广的动态范围，低噪声和有多功能的高声压级特性。

- 双震膜收音设计，能在话筒的整个频率范围内保持精确的心形

指向性收音。

- 精密机械加工的电镀镍黄铜外壳，为声学元件隔板提供了增强

的收音头稳定性和最佳的灵敏度。

- 最先进的电子元件表面焊接技确保符合鐵三角严格的一致术，

性和可靠性标准。

AT4047/SV需要使用幻象供电工作，可使用专业调音台上的48V

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。

在使用时，请将导电固定在话筒支架或吊杆上，并与话筒留下

松弛的空间。这将能确保话筒获得最有效的隔离和减少话筒不

小心被拉出支架的可能。

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

指向特性心形指向性

频率响应 20-18,000 Hz

开通灵敏度 -35 dB (17.7 mV) 以 1V 于 1 Pa

输出阻抗 250 欧姆

最大承受声压 149 dB, 1 kHz 于 1% T.H.D.

159 dB, 于 10 dB 衰减

噪声 9 dB 声压

动态范围 (典型) 140 dB, 1 kHz 于最高声压

讯噪比 85 dB, 1 kHz 于 1Pa

高通滤波 80 Hz, 12 dB/octave

幻象供电直流 48V，耗电 3.0 mA

典型

开关平直-高通滤波；10 B d 衰减

重量 410 克

外形尺寸 170.0 mm - 长度,

53.4 mm - 机体最大直径

输出连接器内置 XLRM-3针卡农公头

附属品 AT8449/SV ⅝”-27防震架带接头，

保護袋，话筒防尘罩。

选择配件 :

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

Produkt Specifikationer

Mærke:	Audio-Technica
Kategori:	Mikrofon
Model:	AT4047/SV
Type:	Studiemikrofon
Produktfarve:	Sølv
Husmateriale:	Brass, Nickel
Forbindelsesteknologi:	Ledningsført
Enhedsgrænseflade:	mini XLR (3-pin)
Bæretaske:	Ja
Mikrofonindgangsimpedans:	250 ohm (Ω)
Mikrofon frekvens:	20 - 18000 Hz
Mikrofonretningstype:	Kardioid
Mikrofon sensitivitet:	-35 dB
Mikrofon vægt:	410 g
Antal produkter inkluderet:	1 stk
Svingspole type:	Forpolariseret kondensator
Mikrofon dimensioner (DxH):	53.4 x 170 mm
Mikrofon, signal-til-støjforhold:	85 dB
Mikrofonholder:	Ja
Mikrofon dynamikområde:	140 dB
Garantiperiode:	5 År
Lavskåret filter:	80 Hz