Audio Technica U851A Boundary Microphone has been discontinued, here are some related products you might like:
Audio Technica U851A Boundary Microphone
Overview
Description
Offering outstanding Audio-Technica sound for surface-mount applications, the U851A features a PivotPoint® rotating output connector, UniSteep® filter and UniGuard™ RFI-shielding technology. This battery- or phantom-powered condenser microphone accepts interchangeable condenser elements—available for boundary microphones in cardioid, hypercardioid and omnidirectional polar patterns. Its heavy die-cast case and silicon foam bottom pads minimize coupling of surface vibration to the microphone. With superior off-axis rejection and maximum gain-before-feedback, this professional microphone sets audio-quality standards in challenging acoustic environments.
Product Features:
- Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations
- PivotPoint® rotating output connector allows cable to exit from either the rear or the bottom of the microphone
- Superior off-axis rejection for maximum gain before feedback
- UniGuard® RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
- UniSteep® filter provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality
- Small-diameter UniPoint capsule near boundary eliminates phase distortion and delivers clear, high-output performance
- Heavy die-cast case and non-slip silicone foam bottom pads minimize coupling of surface vibration to the microphone
- Low-profile design with low-reflectance black finish for minimum visibility
- Operates on battery or phantom power
Technical Specifications:
- Element: Fixed-charge back plate, permanently polarized condenser
- Polar Pattern: Half-cardioid (cardioid in hemisphere above mounting surface)
- Frequency Response: 30-20,000 Hz
- Low Frequency Roll-Off: 80 Hz, 18 dB/octave
- Open Circuit Sensitivity:
- Phantom: –40 dB (10.0 mV) re 1V at 1 Pa
- Battery: –41 dB (8.9 mV) re 1V at 1 Pa
- Impedance:
- Phantom: 200 ohms
- Battery: 270 ohms
- Maximum Input Sound Level:
- Phantom: 133 dB SPL, 1 kHz at 1% T.H.D.
- Battery: 123 dB SPL, 1 kHz at 1% T.H.D.
- Dynamic Range: (Typical)
- Phantom: 111 dB,1 kHz at Max SPL
- Battery: 101 dB, 1 kHz at Max SPL
- Signal to Noise Ratio: 72 dB, 1 kHz at 1 Pa
- Phantom Power requirements: 11-52V DC, 2 mA typical
- Battery Type: 1.5V AA/UM3
- Battery Current / Life: 0.4 mA / 1200 hours typical (alkaline)
- Switch: Off, on-flat, on-roll-off
- Weight (Microphone): 8.6 oz (244 g)
- Weight (Power Module): 4.9 oz (139 g)
- Dimemsions (Microphone):
- 4.25" (108.0 mm) long,
- 3.31" (84.0 mm) maximum width,
- 0.91" (23.0 mm) height
- Dimensions (Power Module):
- 3.31" (84.0 mm) H x
- 2.48" (63.0 mm) W x
- 0.87" (22.0 mm) D
- Output Connector (Power module):
- Integral 3-pin XLRM-type
- Cable: 25.0' (7.6 m) long (permanently attached to microphone),
- 0.13" (3.2 mm) diameter, 2-conductor,
- shielded cable with TA3F-type connector
- Optional Interchngeable Elements:
- UE-H hypercardioid (100°);
- UE-O omnidirectional (360°)
- Accessories Furnished:
- AT8531 power module
- battery; soft protective pouch
Reviews
(no ratings yet)Give it a quick rating:
Thanks for your rating!
Write a review
Details
- Product: Audio Technica U851A Boundary Microphone
- Manufacturer: Audio Technica
- Model: U851A
- SKU: U851A
- RM Product #: 10872
- Warranty: 1 year manufacturer warranty on all Audio Technica products. 5 year limited warranty on all Audio Technica Wired Microphones.