Audio-Technica AT875R Bruksanvisning
Sidor 2 Engels mikrofon
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LINE + GRADIENT CONDENSER MICROPHONE
- Designed for video production and broadcast (ENG/EFP)
audio acquisition
- Extremely short length (175mm) ideal for use with compact
digital cameras
- Provides the narrow acceptance angle desirable for long-
distance sound pickup
- Excellent sound rejection from the sides and rear of mic
- Tailored response minimizes camera and handling noise
- Operates on phantom power only
The AT875R requires 11V to 52V DC phantom power for
operation.
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.
The high sensitivity of the AT875R assures useful output and
an excellent match to most input sources. In some cases,
however, an attenuator such as the Audio-Technica AT8202
may be required between the microphone and preamplier to
avoid overloading sensitive input stages.
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-L0120-07-E
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
same as 1 kHz
Machida • Tokyo • Japan
SPECIFICATIONS
ELEMENT Fixed-charge back plate
permanently polarized condenser
POLAR PATTERNLine + gradient
FREQUENCY RESPONSE90-20,000 Hz
OPEN CIRCUIT SENSITIVITY-30 dB (31.6 mV) re 1V at 1 Pa
IMPEDANCE 100 ohms
MAXIMUM INPUT SOUND LEVEL127 dB SPL, 1 kHz at 1% T.H.D.
DYNAMIC RANGE (typical) 107 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO74 dB, 1 kHz at 1 Pa
PHANTOM POWER REQUIRMENTS11 - 52V DC, 2 mA typical
WEIGHT (less cable and accessories)80 g
DIMENSIONS 175.0 mm long,
21.0 mm diameter
OUTPUT CONNECTORIntegral 3-pin XLRM-type
ACCESSORIES FURNISHEDAT8405a stand clamp for ⅝"-27
threaded stands;
⅝"-27 to ⅜"-16 threaded adapter;
windscreen;
protective carrying case
Produktspecifikationer
| Varumärke: | Audio-Technica |
| Kategori: | mikrofon |
| Modell: | AT875R |
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