Content |
Boundary-layer Microphone
The LD Systems BM1 is an electret condenser microphone with a hemispherical directional characteristic.
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.
Product type
Microphones
Type
Installations
Frequency response
50 - 20000 Hz
Directivity
half ball
Nominal impedance
250 Ohm(s)
Max. SPL (1% THD @ 1kHz)
135 dB
Phantom power requierements
48 V
Microphone input
XLR (3-pin)
Width
27 mm
Height
74.5 mm
Diameter
93.5 mm
Accessories (included)
cables (Mini-XLR / XLR, 6 m)
Weight
0,345 kg
|
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) |
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
|
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 |
C 562 CM
Small, low-profile boundary layer microphone Wide frequency range High sensitivity Ideal for inconspicuous installation in a room Suited for surveillance or recording The C 562 CM flush-mount boundary microphone uses the same transducer as the C 562 BL. The C 562 CM has been designed specifically for permanent, "invisible" mounting in ceilings, walls, tables, stage props, etc. Owing to its high sensitivity, the C 562 CM is a perfect tool for surveillance or live recording since a single microphone can cover an entire room. The supplied XLR phantom power adapter connects to the microphone cable through a miniature connector so installation holes can be smaller than the diameter of the phantom power adapter. SPECIFICATIONS: Polar pattern omnidirectional (hemispherical) Frequency range 20 to 20,000 Hz Sensitivity 25 mV/Pa (-32 dBV) Max. SPL 130 dB (k=1 %) Equivalent noise level 16 dB-A Signal/noise ratio (A-weighted) 78 dB Impedance 600 ohms Recommended load impedance >2000 ohms Supply voltage 9 to 52 V phantom power to DIN/IEC Current consumption Connector 3-pin XLR Cable 0.5 m (20 in.) Finish matte nickel plated Dimensions 20 dia. x 28 mm (0.8 dia. x 1.1 in.) Net weight 30 g (1.1 oz.) Shipping weight 195 g (76.9 oz.) |
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)
|
Reviews
There are no reviews yet.