Ideal for conference centers, boardrooms, courtrooms, houses of worship, and
other installed applications, the U857Q is designed to plug directly into a
panel- or desk-mounted XLRF-type connector. This cardioid condenser quick-mount
gooseneck microphone offers unsurpassed immunity from radio frequency
interference thanks to Audio-Technica’s UniGuard™ innovations. The 14.47” long
microphone features an ultra-flexible small-diameter gooseneck and accepts
interchangeable elements, available in cardioid, hypercardioid, omnidirectional
and UniLine™ line cardioid polar patterns. Equipped with self-contained
electronics, the phantom-powered microphone also offers an 80 Hz low-cut
UniSteep® filter that reduces pickup of low-frequency ambient noise.
* 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-diameter, alternating gooseneck with virtually
no “memory” permits quick positioning into desired shape
* UniSteep® filter provides a steep low-frequency attenuation to improve sound
pickup without affecting 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 connector
* Included shock mount attenuates noise, shock and vibration transmitted through
the mounting surface
SPECIFICATIONS
ELEMENT Fixed-charge back plate, permanently polarized condenser
POLAR PATTERN Cardioid
FREQUENCY RESPONSE 30-20,000 Hz
LOW FREQUENCY ROLL-OFF 80 Hz, 18 dB/octave
OPEN CIRCUIT SENSITIVITY –39 dB (11.2 mV) re 1V at 1 Pa
IMPEDANCE 250 ohms
MAXIMUM INPUT SOUND LEVEL 139 dB SPL, 1 kHz at 1% T.H.D.
DYNAMIC RANGE (typical) 115 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO 70 dB, 1 kHz at 1 Pa
PHANTOM POWER REQUIREMENTS 11-52V DC, 2 mA typical
SWITCH Flat, roll-off
WEIGHT 5.1 oz (144 g)
DIMENSIONS 14.37" (365.0 mm) long,
0.48" (12.2 mm) head diameter,
0.74" (18.9 mm) base diameter
OUTPUT CONNECTOR Integral 3-pin XLRM-type
OPTIONAL INTERCHANGEABLE ELEMENTS UE-H hypercardioid (100°);
UE-O omnidirectional (360°);
UE-UL UniLine™ (90°)
ACCESSORIES FURNISHED AT8153 two-stage foam windscreen; AT8662 shock mount
AUDIO-TECHNICA CASE STYLE M34
