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Equipped with Audio-Technica's UniLine® line-cardioid element with a tightly focused 90º acceptance angle, the U853AU features UniGuard® innovations that offer unsurpassed immunity from radio frequency interference. The battery- or phantom-powered microphone accepts interchangeable elements, available in cardioid, hypercardioid, omnidirectional and UniLine® line cardioid polar patterns. It also offers an 80 Hz low-cut UniSteep® filter that reduces pickup of low-frequency ambient noise.
- Designed for suspension over choirs, instrumental groups and theater stages
- UniLine polar pattern provides narrow 90° acceptance angle
- 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
- Accepts interchangeable elements to permit angle of acceptance from 90° to 360°
- Low-profile design with low-reflectance finish for minimum visibility
- Available in two colors: black (U853AU) and white (U853AWU)
- Operates on battery or phantom power
- Element: Fixed-charge back plate, permanently polarized condenser
- Polar Pattern: Line Cardioid
- Frequency Response: 30-20,000 Hz
- Low Frequency Roll Off: 80 Hz, 18 dB/octave
- Open Circuit Sensitivity: Phantom: -38 dB (12.5 mV) re 1V at 1 Pa Battery: 39 dB (11.2 mV) re 1V at 1 Pa
- Impedance: Phantom: 200 ohms Battery: 270 ohms
- Maximum Input Sound Level: Phantom: 130 dB, 1 kHz at 1% T.H.D. Battery: 120 dB SPL, 1 kHz at 1% T.H.D.
- Dynamic Range: Phantom: 110 dB, 1 kHz at Max SPL Battery: 100 dB, 1 kHz at Max SPL
- Signal to Noise Ratio: 74 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: AT8154 two-stage foam windscreen; AT8451 steel hanger; AT8531 power module; AT8438 5/8“-27 stand adapter; battery
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AKG GN 30 OC., 12 inch gooseneck for D.A.M.-microphone capsules, 3/8“-connector, programmable indicator LED, incl. 10ft. cable to open-end, black, for installations |
- Immune to RF interference
- Speech optimized frequency range
- Enhanced hypercardioid polar pattern
- High SPL capability
- Premium microphone for ubiquitous application
A History of Sound: The C 747, the so called „pencil microphone“, was first built in 1987. Due to its excellent technical specifications, especially the wide and flat frequency range, it was used for the recording of all kinds of musical instruments, even those with very low frequencies. Because of its brilliant sound reproduction and its inconspicuous optical appearance, it was quickly known as an ideal overhead microphone.
Thank to the narrow polar pattern it solved the crosstalk problem (when recording multiple instruments at once) and the problem of picking up sounds from distant spots in a room. But for all that, due to the help of the acoustically well balanced, short interference tube, it didnʼt face one of the biggest problems of most shotgun microphones – the change of the polar pattern over the frequency. This is one of many reasons why this microphone found its way into a great number of Broadcast Stations, Recording Studios, Theatres, Opera Houses, Churches, Conference Rooms and Lecture Halls.
Another big advantage of the C 747 is that the microphone will not change the sound or level too much even when the person speaking is moving a lot. So it came that the C 747 finally found its way into installed sound systems as a perfect speech and lectern microphone. The C 747 is now one of the most versatile microphones in the AKG product range and over the years it has been available in various versions and model types such as hanging module, capsule for modular gooseneck microphones and in a boundary layer microphone.
Whatʼs New in V11: As it is more and more used in conference applications, we carefully redesigned the C 747 to better cope with some specific installed sound issues.
The new C 747 V11 will have an integrated RFi shield to block out unwanted interference by mobile phones, wireless mics and the like. Also we have fine tuned the frequency response to give especially the spoken word an outstanding presence, without changing the flavour of the classic C 747 sound.
An enhanced polar pattern provides consistent off-axis rejection to control ambient noise and feedback in acoustically difficult environments. This makes the C 747 V11 an excellent choice for noisy discussion groups or reverberant pulpits while it is forgiving enough to clearly pick up talkers moving around in front of the microphone. A switchable LF roll-off filter suppresses mechanical noise. The low-impedance transformerless preamp operates on 9 to 52 V phantom power.
The C 747 V11 ships with an extensive accessory set including a shock mount/adapter, mini gooseneck, stand adapter, mounting clamp, thread link, and windscreen.
SPECIFICATIONS:
Polar pattern | hypercardioid | Frequency range | 30 to 18,000 Hz | Sensitivity | 8.5 mV/Pa (-42 dBV) | Max. SPL | 133 dB | Equivalent noise level (IEC 60268-4) | 32 dB | Equivalent noise level | 21 dB-A | Signal/noise ratio (A-weighted) | 73 dB | Bass filter | 12 dB/octave at 150 Hz | Impedance | 400 ohms | Recommended load impedance | >1500 ohms | Supply voltage | 9 to 52 V phantom power to DIN 45596 | Powering | |
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The 98H/C is wireless version of Shure\'s Beta 98 clip-on instrument mic, and is designed to work with the Shure beltpack transmitters. With the ability to handle high SPL, the Beta 98H/C is ready for the demands of brass, woodwind, and percussion, and features a flexible integrated gooseneck with clip-on clamp for secure fit and precise positioning. No external mounting hardware required.
Tech Specs
- Compatibility: All Shure w/TA4F (Tiny QG)
- Microphone Type: Condenser
- Polar Pattern: Cardioid
- Frequency Response: 20Hz-20kHz
- Max SPL: 143.5dB SPL
- Signal to Noise Ratio: 63dB
- Self Noise: 31dB (A weighted)
- Connector: TA4F (For Shure)
- Color: Black
- Cable Length: 10 ft.
- Weight: .1 lb.
- Manufacturer Part Number: WB98H/C
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Shure MX412SE/C 12-inch (30 cm) Gooseneck Condenser Microphone, Shock Mount, Flange Mount, 10-foot (3 m) Side-Exit Cable (or Bottom-Exit), Snap-Fit Foam Windscreen, In-Line Preamp, Cardioid.
Shure Microflex MX412SE/C microphones are miniature gooseneck-mounted electret condenser microphones designed for speech and vocal pickup. Their high sensitivity and broad frequency range make them suitable for recording, as well as sound reinforcement applications.
The MX412SE/C microphone can be screwed onto a mic stand or the supplied 5/8 inch 27-threaded flange. They can be easily changed from side-exit to bottom-exit to conceal the cable. All models include an in-line preamplifier and a 3 m (10 ft) cable. Each microphone is available with interchangeable cardioid, supercardioid, or omnidirectional cartridges. |
- Cardioid polar pattern
- 10 m (33 ft.) cable
- 125° pickup angle
- Especially suited for choir recordings
- Integrated spring steel clamp for optimum alignment
The new CHM 99 Condenser Hanging Microphone provides both ease of use and a high level of functionality. There is hardly any more affordable and simpler solution for recording choirs at worship centers. Suspended from the ceiling or a beam, the hanging microphone is aligned and then fixed in the correct position. Now use the spring steel clamp to adjust the correct angle, and off you go!
The CHM 99 is available in white or black.
XY stereo recording
Using two CHM 99 hanging microphones in an XY configuration (coincident pair) is a good way to make stereo recordings, particularly of choirs. However, sound source locations are defined only by intensity differences. Adjusting the angle between the microphones determines the width and depth of the stereo image.
ORTF stereo recording
Developed by the French Broadcasting Authority, this technique differs from the XY technique by recording not only intensity differences, but also delay differences. The capsules are aligned at an angle of precisely 110° and 170 mm / 6.7 in. apart.
Polar pattern Cardioid
Frequency range 70 to 18,000 Hz
Sensitivity 18 mV/PA = -35 dBV re 1 V/Pa
Max. SPL 125 dB (for 1% THD)
Equivalent noise level 73 dB
Impedance =2,000 ohms
Supply voltage 9 to 52 V phantom power to IEC 61938 (DPA adapter integrated)
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