Achieve clear, intelligible speech reproduction with the white Audio-Technica U851RWb, a cardioid condenser boundary microphone optimized for surface-mount applications in conference rooms, houses of worship, recording studios, live event venues, and sports arenas. The high-output condenser element yields a wide frequency response of 20 Hz to 20 kHz, which can be modified via the switchable 80 Hz low-cut filter—ideal for mitigating rumble and low-frequency buildup.

For Surface-Mount Applications    High-Output Condenser Element    Cardioid Polar Pattern    Reduces Off-Axis Sound Pickup    Enhanced Rejection of RFI    20 Hz to 20 kHz Frequency Response    Switchable Low-Cut Filter at 80 Hz    Rotatable TB3M Output Connector    11 to 52 VDC Phantom Powered    Includes 25' TA3F to XLR Mic Cable

• Cardioid condenser boundary microphone
• Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, and conferencing
• Superior off-axis rejection for maximum gain before feedback
• PivotPoint rotating output connector allows cable to exit from either the rear or the bottom of the microphone
• Small-diameter UniPoint element near boundary eliminates phase distortion and delivers clear, high-output performance
• Separately available interchangeable elements permit angle of acceptance from 100° to 360°
• UniGuard RFI-shielding technology offers outstanding rejection of radio-frequency interference (RFI)
• Switchable 18 dB/octave UniSteep roll-off filter at 80 Hz
• Self-contained electronics eliminate need for external power module
• Powered via 11 to 52 VDC phantom power
• 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 finish for minimum visibility
• Threaded inserts on bottom of microphone allow it to be mounted with screws for increased security
• Balanced TB3M output connector
• Includes 25' TA3F to XLR male shielded microphone cable

Related Questions and Answers

Q: 1. Does it come with a cable? the in the the box tab does not show it coming with one.

A: Yes it comes with an xlr cable built into mike. I believe its 20-25 long. I used these mikes for community play performances.

Q: 2. Does this need a power module or phantom power? Tried hooking an older but similar AT boundary mic to a TASCAM DR-40 using the COXMMXF25 cable and would not work with or without phantom power on. Any help would be greatly appreciated and thank you in advance.

A: Yes it will need phantom power. The spec. sheet that came with the mic should tell you the voltage. If your mixer can't do phantom power there are products out there that will hook up to the mic then into the mixer that will do the job. Good luck.

Q: 3. is connector swivel ?

A: The connector is a 3 pin XLR and it does not swivel.

Q: 4. Is anyone using 2 of these simultaneously with the tascam dr-40 and if so, does the phantom power from the tascam do ok? How long can you record with a new set of batteries? Thanks

A: I do not own a Tascam dr-40, but we used 2 of these with phantom power from a Canon XA-10 and they worked well. It may be a decent alternative to a bunch of lav mics and a mixing board.

Q: 5. is there an xlr m cable included?

A: The Audio-Technica UA851R includes a 25 foot XLR output cable with with TA3F and XLRM-type connectors for connection from the mic to your recording/output device.

Q: 6. Does it need require phantom power?

A: Yes. The Audio-Technica AT4053b Hypercardioid Condenser Microphone BH #AUAT4053B requires phantom power. Operating Voltage: 48 V Operating Current Consumption 4.8 mA

Q: 7. Can i use this with an android phone

A: The ATR4697 features a mono 1/8 jack designed for connection to a portable audio recorder. Although the connector is the same size, will not be recognized by a smartphone or tablet.

Q: 8. Can you recommend a preamp/power supply for this mic? I don't need a mixer as I plan to feed the mic into an ATEM mini with an adapter

A: You can use the Rolls MP13 Mini-Mic Preamp (B&H # ROMP13) to power the Audio-Technica U851Rb Cardioid Condenser Boundary Microphone, then use an XLR female to 3.5mm TRS male cable like the Kopul XRSM 3-Pin XLR Female to 3.5mm RA Stereo Mini-Plug Cable - 3' (B&H # KOXRSM03B) to connect the output from the MP13 to the 3.5mm TRS input on the Blackmagic Design ATEM Mini HDMI Switcher.

Q: 9. Does this mic come in a wireless version?

A: This mic is not available in a wireless version.

Q: 10. I have a Tascam DR-701R that provide phantom power, so still I need piut the Battery in the AT831B?

A: It is battery or phantom. So you can run it with the phantom power on your DR-701, or if you would like to save some battery power on your DR-701, you can run the AT831B on battery power.