Audio Technica U851R Cardioid condenser boundary microphone

277.00 incl. GR VAT

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Availability: Available in 1-3 d. Available in 1-3 d. SKU: U851R Category:
Featuring breakthrough audio and mechanical design innovations, the phantom-powered U851R offers outstanding speech intelligibility and transparent sound quality for surface-mount applications. The microphone is equipped with a PivotPoint® rotating output connector, UniSteep® filter and UniGuard® RFI-shielding technology. It accepts interchangeable condenser elements – available for boundary microphones in cardioid, hypercardioid and omnidirectional polar patterns. With […]

 

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Featuring breakthrough audio and mechanical design innovations, the phantom-powered U851R offers outstanding speech intelligibility and transparent sound quality for surface-mount applications. The microphone is equipped with a PivotPoint® rotating output connector, UniSteep® filter and UniGuard® RFI-shielding technology. It accepts interchangeable condenser elements – available for boundary microphones in cardioid, hypercardioid and omnidirectional polar patterns. With a heavy die-cast case and silicon foam bottom pads to minimize coupling of surface vibration to the microphone, the U851R is equipped with self-contained electronics, eliminating the need for an external power module.

  • 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)
  • Self-contained electronics eliminate need for external power module
  • Small-diameter UniPoint® capsule near boundary eliminates phase distortion and delivers clear, high-output performance
  • Heavy die-cast case and non-slip silicon foam bottom pads minimize coupling of surface vibration to the microphone
  • Low-profile design with low-reflectance finish for minimum visibility
  • Available in two colors: black (U851R) and white (U851RW)

 

  • 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: 34 dB (19.9 mV) re 1V at 1 Pa
  • Impedance: 200 ohms
  • Maximum Input Sound Level: 134 dB SPL, 1 kHz at 1% T.H.D.
  • Dynamic Range: 108 dB, 1 kHz at Max SPL
  • Signal to Noise Ratio: 68 dB, 1 kHz at 1 Pa
  • Phantom Power Requiremens: 11-52V DC, 4 mA typical
  • Switch: Flat, roll-off
  • Weight: 9.2 oz (262 g)
  • Dimensions: 4.25″ (108.0 mm) long, 3.31″ (84.0 mm) maximum width, 0.91″ (23.0 mm) height
  • Output Connector: TB3M-type
  • Cable: 25.0′ (7.6 m) long, 0.13″ (3.2 mm) diameter, 2-conductor, shielded cable with TA3F and XLRM-type connectors

 

Weight 0.12 kg

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Quick Comparison

Audio Technica U851R Cardioid condenser boundary microphone removeAudio Technica U843R Three channel boundary cardioid condenser microphone removeSHURE MX-393C - Cardioid Boundary Microphone removeAudio Technica U851A Cardioid condenser boundary microphone removeAudio Technica U841A Omnidirectional condenser boundary microphone removeSENNHEISER E-912 HALF-CARDIOID CONDESER BOUNDARY MICROPHONE remove
NameAudio Technica U851R Cardioid condenser boundary microphone removeAudio Technica U843R Three channel boundary cardioid condenser microphone removeSHURE MX-393C - Cardioid Boundary Microphone removeAudio Technica U851A Cardioid condenser boundary microphone removeAudio Technica U841A Omnidirectional condenser boundary microphone removeSENNHEISER E-912 HALF-CARDIOID CONDESER BOUNDARY MICROPHONE remove
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Description
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Featuring breakthrough audio and mechanical design innovations, the phantom-powered U851R offers outstanding speech intelligibility and transparent sound quality for surface-mount applications. The microphone is equipped with a PivotPoint® rotating output connector, UniSteep® filter and UniGuard® RFI-shielding technology. It accepts interchangeable condenser elements - available for boundary microphones in cardioid, hypercardioid and omnidirectional polar patterns. With a heavy die-cast case and silicon foam bottom pads to minimize coupling of surface vibration to the microphone, the U851R is equipped with self-contained electronics, eliminating the need for an external power module.

  • 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)
  • Self-contained electronics eliminate need for external power module
  • Small-diameter UniPoint® capsule near boundary eliminates phase distortion and delivers clear, high-output performance
  • Heavy die-cast case and non-slip silicon foam bottom pads minimize coupling of surface vibration to the microphone
  • Low-profile design with low-reflectance finish for minimum visibility
  • Available in two colors: black (U851R) and white (U851RW)

 

  • 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: 34 dB (19.9 mV) re 1V at 1 Pa
  • Impedance: 200 ohms
  • Maximum Input Sound Level: 134 dB SPL, 1 kHz at 1% T.H.D.
  • Dynamic Range: 108 dB, 1 kHz at Max SPL
  • Signal to Noise Ratio: 68 dB, 1 kHz at 1 Pa
  • Phantom Power Requiremens: 11-52V DC, 4 mA typical
  • Switch: Flat, roll-off
  • Weight: 9.2 oz (262 g)
  • Dimensions: 4.25" (108.0 mm) long, 3.31" (84.0 mm) maximum width, 0.91" (23.0 mm) height
  • Output Connector: TB3M-type
  • Cable: 25.0' (7.6 m) long, 0.13" (3.2 mm) diameter, 2-conductor, shielded cable with TA3F and XLRM-type connectors

 

With three cardioid condenser elements in a single housing, the phantom-powered U843R offers a remarkably versatile tool for surface-mount installations. Levers on the microphone base allow easy reorientation of two elements to offer 360° or 300° coverage. Since elements can be powered and used individually or in any combination, further flexibility is easily achieved. For example, with two elements powered, the microphone can provide a figure-of-eight polar pattern; with a single element powered, the microphone functions as a standard cardioid boundary microphone. Installation and repositioning are extremely quick, thanks to four recessed pathways on the base of the microphone that enable the user to route the cable as required to accommodate any installation requirements; no tools or disassembly are needed. The microphone also offers Audio-Technicaʼs innovative UniGuard® RFI-shielding technology.

  • Three cardioid condenser elements mounted in a single housing
  • Easily reposition two elements (via levers on the microphone base) to offer 360° or 300° coverage; each element can be powered and used individually or in any combination
  • Also functions as a stereo boundary microphone
  • Provides full, efficient and flexible coverage—fewer microphones required
  • Small-diameter capsules near boundary eliminate phase distortion and deliver clear, high-output performance
  • Low-frequency attenuation improves sound pickup without affecting voice quality
  • Cable routes through any of four recessed pathways on the microphone base (or down for direct feed through a table surface); no tools or disassembly required
  • UniGuard® RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
  • Heavy die-cast case and non-slip silicone foam bottom pad minimizes coupling of surface vibration to the microphone
  • Low-profile design with low-reflectance finish for minimum visibility

 

  • Element: Fixed-charge back plate, permanently polarized condenser
  • Polar Pattern: Hemispherical Cardioid x3 (combine to omni-directional or bidirectional)
  • Frequency Response: 70-16,000 Hz
  • Open Circuit Sensitivity: –37 dB (14.1 mV) re 1V at 1 Pa
  • Impedance: 100 ohms
  • Maximum Input Sound Level: 134 dB SPL, 1 kHz at 1% T.H.D.
  • Dynamic Range (Typical): 105 dB, 1 kHz at Max SPL
  • Signal-to-Noise Ratio: 65 dB, 1 kHz at 1 Pa
  • Phantom Power Requirements: 11-52V DC, 2 mA typical
  • Switch: The lever of elements can adjust the proper position
  • Weight (Less Cable): 160 g
  • Dimensions: 20.0 mm - height
    85.0 mm – maximum body diameter
  • Cable: 7.6 m long (permanently attached to microphone), 4 mm diameter, 6 conductor, shielded cable; output end stripped and tinned for connection to electronic device
  • Accessories Furnished: Soft protective pouch

 

 MX393C - Condenser Boundary Microphone, Built-in Preamp, 12-ft Tini "QG" ? to XLR Cable, Programmable Switch and LED Indicator

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.

  • 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 silicon 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

 

  • 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: 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 Requiremens: 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
  • 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
  • Accessories: AT8531 power module; battery; soft protective pouch

 

The U841A delivers exceptionally intelligible audio reproduction in a super-compact, low-profile design. Equipped with UniGuard® RFI-shielding technology, this omnidirectional condenser boundary microphone is designed for clear, highly intelligible sound reinforcement, professional recording, television and conferencing in surface-mount applications. The U841A has a 360° pickup angle and operates on battery or phantom power.

  • Designed for surface-mount applications such as high-quality sound reinforcement, professional recording, television, conferencing and other demanding sound pickup situations
  • 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 silicon foam bottom pad 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

 

  • Element: Fixed-charge back plate permanently polarized condenser
  • Polar Pattern: Omnidirectional in hemisphere above mounting surface
  • Frequency Response: 30-20,000 Hz
  • Low Frequency Roll Off: 80 Hz, 18 dB/octave
  • Open Circuit Sensitivity: Phantom: -39 dB (11.2 mV) re 1V at 1 Pa Battery: -40 dB (10.0 mV) re 1V at 1 Pa
  • Impedance: Phantom: 200 ohms Battery: 270 ohms
  • Maximum Input Sound Level: Phantom: 132 dB, 1 kHz at 1% T.H.D. Battery: 122 dB SPL, 1 kHz at 1% T.H.D.
  • Dynamic Range: Phantom: 111 dB, 1 kHz at Max SPL Battery: 101 dB, 1 kHz at Max SPL
  • Signal to Noise Ratio: 73 dB, 1 kHz at 1 Pa
  • Phantom Power Requiremens: 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
  • 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
  • Accessories: AT8531 power module; battery; soft protective pouch

 

The e 912 is a pre-polarized condenser boundary microphone with
half-cardioid pick-up pattern. Its acoustic properties have been
optimized for instruments, vocals and speech. The e 912 is an ideal
choice for pianos, theatre and opera productions, conference applications,
altars and lecterns.To optimally match the installation environment,
the e 912 is available in black or creme white.

Features
Frequency response and sensitivity optimized for picking up instruments,
vocals and speech
Unobtrusive, flat housing
Extremely rugged and step-resistant
Shock-absorbing rubber base
Mounting slots for table installation
Gold-plated XLR connector
Integrated pre-amp 
Delivery Includes
e 912 Microphone
Pouch
User manual

Technical Data
Transducer principle (Microphone)  permanently polarized condenser 
Pick-up pattern  half-cardioid 
Sensitivity in free field, no load (1kHz)  10 mV/Pa 
Max. Sound pressure level (aktiv)  135,6 dB 
Equivalent noise level  26 dB(A) 
Phantom powering  48 V / 1,1 mA 
Nominal impedance  Min. terminating impedance  1000 Ohm 
Dimensions  126,5 x 105 x 26,5 mm 
Weight  ca. 550 g 
 

Weight0.12 kg0.10 kg0.40 kg0.10 kg0.10 kg0.55 kg
DimensionsN/AN/AN/AN/AN/AN/A
Additional information
Weight 0.12 kg
Weight 0.10 kg
Weight 0.40 kg
Weight 0.10 kg
Weight 0.10 kg
Weight 0.55 kg