Description
The U857Q is a wide-range condenser microphone with a cardioid polar pattern. It is designed for quality sound reinforcement, professional recording, television and other demanding sound pickup applications. The small-diameter double gooseneck design permits highly flexible positioning while maintaining a smooth, well-contoured appearance. The U857Q stands 365.0 mm (14.37") from the table or podium; it is also available in a 481.0 mm (18.94") version as U857QL. The two models are identical in all other respects.
The microphone requires 11V to 52V phantom power for operation. The microphone is equipped with UniGuard RFI-shielding technology, which offers outstanding rejection of radio frequency interference (RFI). The microphone's cardioid polar pattern provides a 120° angle of acceptance. Additional interchangeable elements with omnidirectional (360°), hypercardioid (100°) and UniLine (90°) pickup patterns are available.
An XLRM-type connector insert at the base allows the microphone to be plugged directly into an XLRF-type panel jack or microphone cable. A recessed switch permits choice of flat response or low-frequency roll-off (via integral 80 Hz high-pass UniSteep filter) to help control undesired ambient noise. The microphone comes equipped with a two-stage foam windscreen and a shock mount designed to attenuate noise, shock and vibration transmitted through the mounting surface. The microphone is enclosed in a rugged housing with a low-reflectance Black finish.
Features
- 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 (can be ordered separately) 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
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
