LD SYSTEMS LDBM1 CONDENSER BOUNDARY ELECTRET MICROPHONE

For micing upright and grand pianos on stage or in the studio. Additional applications in the area of conference technology, transmission of roundtable discussions and theatrical performances.

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

 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.

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

    Designed for Broadcast, House of Worship, Pro Music, and other applications.
    Half-cardioid polar pattern
    Boundary layer
    Ultra-thin profile (16 mm) housing
    Rubber non-slip bottom pad and strong steel screen
    Integrated pop filter

Case Material    Die cast zinc
Connector Type    3-pin XLR
Element    Back Electret Condenser
Finish    Non-reflecting Black
Finish    White
Impedance, Low-Z balanced    200 Ω
Mic Type    Boundary
Open Circuit Voltage    25 mV/Pascal
Polar Pattern    Cardioid
Wired/Wireless    Wired
Height    16 mm (0.63“)
Width    94 mm (3.7“)
Depth    123 mm (4.84“)
Weight Net    12.63 oz (358 g)

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