Audio-Technica U857AL Bruksanvisning
Audio-Technica
mikrofon
U857AL
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U857A / U857AL
CARDIOID CONDENSER ADAPTER-MOUNT
GOOSENECK MICROPHONE
- Designed for high-quality sound
reinforcement, professional
recording and broadcasting.
- Superior off-axis rejection for
maximum gain before feedback.
- UniGuard™ RFI-shielding
technology offers outstanding
rejection of radio frequency
interference (RFI).
- Easy-to-adjust, rugged, small-
dimeter, alternating gooseneck with
virtually no “memory” permits quick
positioning into desired shape.
- UniSteep
®
lter provides a steep
low-frequency attenuation to
improve sound pickup without
affecting voice quality.
- Accepts interchangeable elements
to permit angle of acceptance from
90° to 360°.
- Two-stage foam windscreen yields
dramatically improved resistance to
P-pops and other breath blasts.
- Direct mounts to any "-27 stand, ⅝
or to included threaded mounting
ange.
The U857A stands 305mm from the table or podium, it is also
available in a 421mm version as U857AL. The two models are
identical in all other respects.
The microphone requires 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.
Alkaline batteries are recommended for longest life. 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.
At integral 80 Hz 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.
The microphone features a 3m permanently attached miniature
cable. It connects to provided AT8531 power module via
a special TA3F-type connector designed to optimize RFI
immunity.
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.
SPECIFICATIONS
ELEMENT
POLAR PATTERN
FREQUENCY RESPONSE
LOW FREQUENCY ROLL-OFF
OPEN CIRCUIT SENSITIVITY
(Phantom / Battery)
IMPEDANCE (Phantom / Battery)
MAXIMUM INPUT SOUND LEVEL
(Phantom / Battery)
DYNAMIC RANGE (TYPICAL)
SIGNAL-TO-NOISE RATIO
PHANTOM POWER REQUIREMENTS
BATTERY TYPE
BATTERY CURRENT / LIFE
SWITCH
WEIGHT U857A
U857AL
POWER MODULE
DIMENSIONS U857A
U857AL
BOTH
POWER MODULE
OUTPUT CONNECTOR
CABLE
OPTIONAL INTERCHANGEABLE
ELEMENTS
ACCESSORIES FURNISHED
Fixed-charge back plate
permanently polarized condenser
Cardioid
30-20,000 Hz
80 Hz, 18 dB/octave
-42 dB (7.9 mV) re 1V at 1 Pa
-43 dB (7.0 mV) re 1V at 1 Pa
200 ohms / 270 ohms
133 dB / 123 dB SPL,
1 kHz at 1% T.H.D.
109 dB / 99 dB, 1 kHz at Max SPL
70 dB, 1 kHz at 1 Pa
11-52V DC, 2 mA typical
1.5V AA/UM3
0.4 mA / 1200 hrs typical (alkaline)
Off, on-at, on-roll-off
124 g
131 g
139 g
305 mm - long
421 mm - long,
12.2 mm - head diameter
84 mm(H) x 63 mm(W) x 22 mm (D)
Integral 3-pin XLRM-type
3m long, 3.2mm diameter,
2-conductor shielded cable with
TA3F-type connector
UE-C cardioid (120°)
UE-H hypercardioid (100°)
UE-O omnidirectional (360°)
UE-UL UniLine™ (90°)
AT8531 power module;
AT8153 two-stage foam windscreen
Cable; Battery
10 dB
20k10k5k2k1k50020010050
8 kHz
200 Hz
1 kHz
5 kHz
0°
330°
300°
270°
240°
210°
180°
150°
120°
90°
60°
30°
Optional Accessories:
AT8601 Desk stand.
AT8614 Desk stand with thru-hole.
AT8506 four-channel 48V phantom power
supply (AC powered).
AT8801/EU single-channel 48V phantom
power supply (AC powered).
Polar Pattern
Frequency Response
SCALE IS 5 DECIBELS PER DIVISION
LEGEND
Frequency in Hertz
LEGEND
12” or more on axis
Roll-off
Response in dB
FORM No. ATGC-L0003-05-E
Machida • Tokyo • Japan
Produktspecifikationer
| Varumärke: | Audio-Technica |
| Kategori: | mikrofon |
| Modell: | U857AL |
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