SENNHEISER E-912 HALF-CARDIOID CONDESER BOUNDARY MICROPHONE

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 
 

 SHURE MX-391/C Microphone BOUNDARY

Microflex Boundary There's never been smarter boundary microphones than the Microflex models from Shure. With many models to choose from, equipped with features like programmable, silent membrane switches, logic inputs and outputs, and LED indicators, Microflex Boundary microphones are the high-quality solution for a range of applications, such as altars, boardrooms and distance learning centers. Every Microflex Boundary microphone features one of the new interchangeable condenser cartridges. Available in cardioid, supercardioid and omnidirectional polar patterns, the Microflex cartridges give you superior Shure quality sound options for every installation. In addition, their programmable switches offer the flexibility to be set for Push to Talk, Push to Mute or Push On/Push Off modes. Attractively designed with a low profile, professional appearance, the Microflex Boundary microphones come with an easy to use paint mask for your custom-color installations. Find out why we call the new Microflex Boundary microphones "the smart choice" for just about every application. Take a listen today.

The half-cardioid e 901 is the perfect condenser microphone for kick drum. It is highly robust and step-resistant. It benefits from an integrated preamp.

Pick-up pattern : half-cardioid
Frequency response : 20...20 000 Hz
Sensitivity in free field, no load : (1kHz) 0,5 mV/Pa
Max. Sound pressure level (aktiv) : 154 dB / SPL
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

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

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