Audio-Technica U857QSU Manual

Audio-Technica Mikrofon U857QSU

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U857QSU

UNILINE

™

CONDENSER QUICK-MOUNT

GOOSENECK MICROPHONE

- Designed for high-quality sound

reinforcement, professional record-

ing and broadcasting.

- UniLine™ polar pattern provides

narrow 90° acceptance angle.

- Superior off-axis rejection for maxi-

mum gain before feedback.

- UniGuard™ RFI-shielding technol-

ogy 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 im-

prove sound pickup without affect-

ing voice quality.

- Self-contained electronics eliminate

need for external power module.

- 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.

- Quick-mount design with 3-pin XLRM-type connector insert at

base plugs into any standard XLRF-type surface or cable con-

nector.

- Optional shock mount attenuates noise, shock and vibration

transmitted through the mounting surface.

The U857QSU stands 325mm from the table or podium. The

model is require 11V to 52V 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.

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 trafc, air-handling systems,

etc.), room reverberation and mechanically coupled vibrations.

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

IMPEDANCE

MAXIMUM INPUT SOUND LEVEL

DYNAMIC RANGE (TYPICAL)

SIGNAL-TO-NOISE RATIO

PHANTOM POWER REQUIREMENTS

SWITCH

WEIGHT

DIMENSIONS

OUTPUT CONNECTOR

OPTIONAL INTERCHANGEABLE

ELEMENTS

ACCESSORIES FURNISHED

Fixed-charge back plate

permanently polarized condenser

ine

Cardioid

30-20,000 Hz

80 Hz, 18 dB/octave

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

250 ohms

135 dB SPL, 1 kHz at 1% T.H.D.

115 dB, 1 kHz at Max SPL

74 dB, 1 kHz at 1 Pa

11-52V DC, 2 mA typical

Flat, roll-off

191 g

325 mm - long,

12.2 mm - head diameter

Integral 3-pin XLRM-type

UE-C cardioid (120°)

UE-H hypercardioid (100°)

UE-O omnidirectional (360°)

AT8154 two-stage foam windscreen

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:

AT8662 shock mount.

AT8506 four-channel 48V phantom power

supply (AC powered).

AT8615 quick-mount plug-in microphone

desk stand.

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-L0014-05-E

Machida • Tokyo • Japan

Produkt Specifikationer

Mærke:	Audio-Technica
Kategori:	Mikrofon
Model:	U857QSU

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