Designed for flexible performance in boardroom, school, government,
house of worship and other installed applications, the high-performance U857R features a small-diameter
gooseneck with virtually no "memory." Its ultra-flexible, robust design permits easy adjustment into desired shape while resisting inadvertent repositioning. This
cardioid condenser adapter-mount
gooseneck microphone direct mounts to any 5/8"-27 stand; it is 16.58" long. Equipped with UniGuard innovations that offer unsurpassed immunity from
radio frequency interference, the U857R accepts interchangeable elements, available in
cardioid,
hypercardioid,
omnidirectional and UniLine line
cardioid polar patterns. The phantom-powered
microphone also offers an 80
Hz low-cut UniSteep
filter that reduces pickup of low-
frequency ambient
noise.
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
- 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 5/8"-27 stand, or to included threaded mounting flange
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 (MICROPHONE): 4.4 oz (124 g)
- WEIGHT (POWER MODULE): 2.9 oz (81 g)
- DIMENSIONS (MICROPHONE): 12.01" (305.0 mm) long, 0.48" (12.2 mm) head diameter
- DIMENSIONS (POWER MODULE): 3.66" (92.9 mm) long, 0.74" (18.9 mm) diameter
- OUTPUT CONNECTOR (POWER MODULE): Integral 3-pin XLRM-type
- CABLE: 9.8' (3.0 m) long (permanently attached to microphone), 0.13" (3.2 mm) diameter, 2-conductor, shielded cable with TA3F-type connector
- OPTIONAL INTERCHANGEABLE ELEMENTS: UE-H hypercardioid (100); UE-O omnidirectional (360); UE-UL UniLine (90)
- ACCESSORIES FURNISHED: AT8538 power module; AT8663 A-mount flange; AT8664 A-mount cable pass-through adapter; AT8153 two-stage foam windscreen
- AUDIO-TECHNICA CASE STYLE: M2