Audio-Technica ATM75 Bruksanvisning
Audio-Technica
Hörlurar
ATM75
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CARDIOID CONDENSER HEADWORN MICROPHONE
- Professional-quality vocal pickup with hands-free operation.
- Low-visibility headband provides stable, comfortable t.
- Pivot-mounted exible mic boom descends from left or right side.
- Belt-mounted power module operates on battery or phantom power.
- Cardioid polar pattern improving isolation of desired sound source.
- Also available as: ATM75cW - less power module; 1.4m cable terminated
with locking 4-pin connector for A-T UniPak
™ wireless systems.
The ATM75 required 11V to 52V DC phantom power or a 1.5V AA
battery for operation. A battery need not be in place for phantom power
operation.
Battery installation: Remove the cap from the top of the power module.
Insert a fresh 1.5V AA battery (“+” end toward the cap release button),
then reassemble the power module. Alkaline batteries are recommended
for longest lift. Remove the battery during long-term storage.
Output from the power module’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.
An integral 80Hz high-pass UniSteep® filter provides easy switching
from a at 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 trafc, air-
handling systems, etc.), room reverberation and mechanically coupled
vibrations.
For maximum stability and minimum visibility, the adjustable headband
should be worn around the back of the head, with each cushioned
support pad resting on the temple in front of the ear. The cable should
remain clipped to the headband, with slack at the boom connection.
Avoid leaving the microphone in the open sun or in areas where
temperatures exceed 40°C for extended periods. Extremely high humidity
should also be avoided.
FORM No. ATGC-L0034-06-E
Machida • Tokyo • Japan
SPECIFICATIONS
ELEMENT Fixed-change back plate permanently
polarized condenser
POLAR PATTERN Cardioid
FREQUENCY RESPONSE 100-13,000 Hz
LOW FREQUENCY ROLL-OFF 80 Hz, 18 dB/octave
OPEN CIRCUIT SENSITIVITY
(Phantom / Battery)
-51 dB (2.8 mV) /
-53 dB (2.2 mV) re 1V at 1 Pa
IMPEDANCE (Phantom / Battery) 200 ohms / 270 ohms
MAXIMUM INPUT SOUND LEVEL
(Phantom / Battery)
132 dB / 121 dB SPL,
1 kHz at 1% T.H.D.
DYNAMIC RANGE (typical)
(Phantom / Battery)
96 dB / 85 dB,
1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO 58 dB, 1 kHz at 1 Pa
PHANTOM POWER REQUIREMENTS 11-52V DC, 2 mA typical
BATTERY TYPE 1.5V AA/UM3
BATTERY CURRENT/LIFE 0.4 mA / 1200 hours typical (alkaline)
SWITCHES Off, on-at, on-roll-off
WEIGHT MICROPHONE
POWER MODULE
60 g
139 g
DIMENSIONS HEADSET
MICROPHONE
POWER MODULE
120.0 mm - nominal at widest point,
80.5 mm - exible boom,
20.4 mm - diameter,
84.0(H) x 63.0(W) x 22.9(D) mm
OUTPUT CONNECTOR Integral 3-pin XLRM-type
CABLE 1.4 m long (permanently attached to
microphone), 2.8 mm diameter,
2-conductor shielded cable with TA3F-
type connector
ACCESSORIES FURNISHED AT8531 power module; AT8439 cloth-
ing clip; AT8139L large windscreen;
AT8139S small windscreen; battery
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
Roll-off
Produktspecifikationer
| Varumärke: | Audio-Technica |
| Kategori: | Hörlurar |
| Modell: | ATM75 |
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