Audio Technica U851RW Cardioid condenser boundary microphone

The white-finished version of the U851R, the phantom-powered U851RW features a PivotPoint® rotating output connector, UniSteep® filter and UniGuard® RFI-shielding technology. Offering outstanding speech intelligibility and transparent sound quality for surface-mount applications, the U851RW 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 U851RW 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

A wide range condenser microphone with a cardioid polar pattern, the ultra-smart U891RCx is equipped with local or remote switching options. For flexible control in conference and boardroom installations, the unit's external contact closure ability allows a user to trigger an external device - a camera, for instance - from a switch on the microphone. Another ease-of-use feature: the microphone's electronic on-off switch can be set to three operating modes: touch-on/touch-off, press to talk, and press to mute. The mic is also equipped an 80 Hz low-cut UniSteep® filter to reduce pickup of low-frequency ambient noise. Its red LED status indicator can be controlled remotely. UniGuard® innovations offer unsurpassed immunity from radio frequency interference; interchangeable elements are available in cardioid, hypercardioid and omnidirectional polar patterns; a unique rotating PivotPoint® connector changes the cable exit point - no tools required. It requires 11 to 52V DC phantom power, which operates the microphone and switch circuitry.

• Designed for surface-mount applications such as high-quality sound reinforcement, conferencing, distance learning and other demanding sound pickup situations
• Ultra-quiet electronic switch can be set to any of three operating modes: "touch-on/touch-off," "touch-to-talk" and "touch-to-mute“
• External contact closure capability permits control of remote devices from microphone switch
• External LED control allows for accurate depiction of the live status of the microphone
• PivotPoint® rotating output connector allows cable to exit from either the rear or the bottom of the microphone
• Small-diameter UniPoint® capsule near boundary eliminates phase distortion and delivers clear, high-output performance
• UniGuard® RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
• 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

• 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: 130 dB SPL, 1 kHz at 1% T.H.D.
• Dynamic Range: 104 dB, 1 kHz at Max SPL
• Signal to Noise Ratio: 68 dB, 1 kHz at 1 Pa
• Phantom Power Requirements: 11-52V DC, 4 mA typical
• Weight: 266g
• Dimensions: 108.0mm long, 84.0mm maximum width, 23.0mm height
• Output Connector: TB5M-type
• Cable: 7.6m long, 3.2mm diameter, 5-conductor shielded cable (2 conductors under shield; 3 control wires outside shield); TA5F-type connector at microphone end, output end stripped and tinned for connection to electronic device

With its half-space unidirectional polar pattern, low-profile design, and outstanding sound quality, the PRO44 is ideal for conference tables, podiums, lecterns and other installed-sound uses. This versatile boundary mic\'s self-contained electronics eliminate the need for external power modules. The PRO44 is equipped with a wide-range condenser element with low-mass diaphragm for superior performance.

Low profile for minimum visibility
Wide-range condenser element with low-mass diaphragm for superior performance
Self-contained electronics eliminate need for external power modules
Rugged design and construction
25\' (7.6 m) detachable cable (TA3F to XLRM-type)

Element: Fixed-charge back plate, permanently polarized condenser
Polar Pattern: Half-cardioid (cardioid in hemisphere above mounting surface)
Frequency Response: 70-16,000 Hz
Open Circuit Sensitivity: -25 dB (56.2 mV) re 1V at 1 Pa
Impedance: 100 ohms
Maximum Input Sound Level: 114 dB SPL, 1 kHz at 1% T.H.D.
Dynamic Range: 86 dB, 1 kHz at Max SPL
Signal to Noise Ratio: 66 dB, 1 kHz at 1 Pa
Phantom Power Requiremens: 9-52V, 2 mA typical
Weight: 2.4 oz (67 g)
Dimensions: 2.87" (73.0 mm) maximum width, 3.56" (90.5 mm) maximum length, 0.59" (15.0 mm) height
Output Connector: TB3M-type
Cable: 25\' (7.6 m) long, with TA3F and XLRM-type connectors

Type of Transmitter     UHF Frequency Agile
Input Connector     Internal fitting for interchangeable capsules
Type of Microphone     Electret Condenser Boundary Microphone
Polar Pattern     Cardioid (Supplied)
Interchangeable Mic Heads     Yes - R183B Omnidirectional, R184B Supercardioid and R185B Cardioid cartridges available
Frequency Response     50Hz to 17kHz
Battery Type/Approx. Life     9 Volt Alkaline - 7 hours based on alkaline battery
# Of Channels     Over 100 channels between 692-862MHz, depending on locale
Mute Switch     Programmable Touch-Sensitive Switch
Level Control     Gain Adjustment Range: -6 to 34dBs
Antenna Type     Internal
Display     Microphone Status & Battery Life LEDs
Dimensions     3.625 x 1.8 x 5.17 (92 x 46 x 131mm) (WxHxD)

The new Engineered Sound.

This low-profile omnidirectional condenser boundary microphone is designed for clear, highly intelligible sound reinforcement, professional recording and teleconferencing in table-, ceiling-, or panel-mount applications. The microphone is equipped with a self-contained power module with an XLRM-type output connector, eliminating the need for an external power module. The microphone offers unsurpassed immunity from radio frequency interference thanks to Audio-Technica's UniGuard® innovations. Protected by a rugged all-metal case with a two-layer steel mesh grille, the microphone has a 360º pickup angle, and is available in two colors: black (ES945) and white (ES945W).

• Designed for surface-mount applications such as high-quality sound reinforcement, professional recording and teleconferencing
• Low-profile element provides uniform omnidirectional polar pattern with 360º acceptance angle
• Mounts unobtrusively in table-tops, ceilings and wall panels
• Self-contained power module with XLRM-type output connector
• Rugged all-metal case with a two-layer steel mesh grille
• Isolators provide mechanical dampening of mounting-surface vibration
• Requires 11V to 52V DC phantom power
• UniGuard® RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI)
• Available in two colors: black (ES945) and white (ES945W)
• RoHS compliant-free from all substances specified in the EU directive on hazardous substances

• Element: Fixed-charge back plate, permanently polarized condenser
• Polar Pattern: Omnidirectional
• Frequency Response: 40-18,000 Hz
• Open Circuit Sensitivity: -42 dB (7.9 mV) re 1V at 1 Pa
• Impedance: 200 ohms
• Maximum Input Sound Level: 142 dB SPL, 1 kHz at 1% T.H.D.
• Dynamic Range: 112 dB, 1 kHz at Max SPL
• Signal to Noise Ratio: 64 dB, 1 kHz at 1 Pa
• Phantom Power Requiremens: 11-52V DC, 2 mA typical
• Weight: 63 g (2.2 oz)
• Dimensions: 69.0 mm (2.72“) long, 28.0 mm (1.10“) diameter
• Output Connector: Integral 3-pin XLRM-type

C 547 BL 

"Non-crush" case
Inconspicuous
Hypercardioid polar pattern
Easy to repaint
 
Hypercardioid, studio-quality boundary microphone with rugged, "non-crush" case and
switchable bass-cut filter for reducing footfall noise, ideal for tough on-stage assignments.
Other benefits include optimum acoustic properties, high directivity, and neutral sound.
Having the same frequency response, the C 547 BL can be combined with the CK 47 with
excellent results.
Primarily designed for use in places of worship, theaters, and conferencing, the C 547 BL
is also a good choice for miking kick drums and other instruments.

SPECIFICATIONS:
Polar pattern hypercardioid
Frequency range 30 to 18,000 Hz
Sensitivity 8.5 mV/Pa (-42 dBV)
Max. SPL 133 dB (for 1% THD)
Equivalent noise level 22 dB-A
Signal/noise ratio (A-weighted) 72 dB
Bass filter 12 dB/octave at 150 Hz
Impedance 400 ohms
Recommended load impedance >1000 ohms
Supply voltage 9 to 52 V phantom power to DIN 45596
Current consumption