| Content | Featuring Audio-Technica's UniLine® line-cardioid element, the U853RU UniLine condenser hanging microphone is equipped with UniGuard® innovations that offer unsurpassed immunity from radio frequency interference. The phantom-powered microphone accepts interchangeable elements, available in cardioid, hypercardioid, omnidirectional and UniLine® line cardioid polar patterns. Its 80 Hz low-cut UniSteep® filter 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 (U853RU) and white (U853RWU)
- 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: 35 dB (17.7 mV) re 1V at 1 Pa
- Impedance: 250 ohms
- Maximum Input Sound Level: 135 dB SPL, 1 kHz at 1% T.H.D.
- Dynamic Range: 115 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
- Switch: Flat, 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; AT8538 power module; AT8438 5/8“-27 stand adapter
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- Low-profile floor stand gooseneck module - for permanent installations and mobile applications
- Extremely rugged gooseneck construction - for an extra-long life of reliability and stability
- Quick-absorbing rubber shock mount - for optimum suppression of structure-borne noise
- Highly reliable contacts for capsule modules prevent contact problems and ensure extra-long life
- Optional extension tube available raises the microphone for tall users or choir pickup
Elegant gooseneck module with heavy, shock mounted floor stand in matte gray finish for use with all Discreet Acoustics Capsule Modules. Integrated LED ring status indicator. Suited for stand-alone use on stage or in front of a lectern. Two integrated flexible gooseneck sections allow optimum alignment with talkers of different heights or positions. A supplied screw-on extension tube can be used to place the microphone higher for tall talkers. The supplied 10 m (33 ft.) cable with XLR phantom power adapter is long enough to reach the edge of most stages with no extension cable. For use as a lectern microphone in worship centers, halls etc.
Available capsule modules for GN 155 Set: CK 31, CK 32, CK 33, CK 47, CK 80.
| Bass filter |
250 Hz, -10 dB at 50 Hz |
| Impedance |
=2,000 ohms |
| Supply voltage |
9 to 52 V phantom power to DIN/IEC |
| Current consumption |
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Polar pattern Cardioid
Frequency range 70 to 18,000 Hz
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)
Powering |
- 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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- Hypercardioid polar pattern
- 38 cm long
- 95° pickup angle
- For acoustically difficult environments
- Connects easily via XLR connector
The hypercardioid polar pattern with its narrow 95° pickup angle is suited best for situations where noise typically occurs from all sides (particularly in worship centers), where people talk into the microphone from a greater distance, or where several talkers are grouped side by side. Two different lengths are available. The .exible joint ensures optimum alignment of the gooseneck to any talker position. Several options are available for installation, i.e., stand, tabletop installation, and lockable.
Choosing polar patterns
Selecting the correct polar pattern for installed sound is difficult since it depends on a variety of factors. Of course the acoustics of the room play a key role. For highly reverberant rooms such as worship centers, a hypercardioid polar pattern will be the best choice to avoid high levels of unwanted noise. Correct placement of the loudspeakers is also essential. If the speakers project right at the capsule, a hypercardioid will be your best bet. The most difficult task, however, is trying to judge how the talkers will behave. For talkers who are inexperienced or move around a lot, be sure to choose a cardioid polar pattern for reliable pickup; talkers at a greater distance from the mic will be served best by a hypercardioid.
The microphone shall be a hypercardioid gooseneck microphone. Its pickup angle shall be 95 degrees; frequency range 50 Hz to 19 kHz; sensitivity 12 mV/Pa; max. SPL 125 dB; electrical impedance
| Polar pattern |
Hypercardioid |
| Frequency range |
50 to 19,000 Hz |
| Sensitivity |
12 mV/PA = -38 dBV re 1 V/Pa |
| Max. SPL |
125 dB (for 1% THD) |
| Equivalent noise level |
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| Signal/noise ratio (A-weighted) |
>73 dB |
| Impedance |
=2,000 ohms |
| Supply voltage |
English: 9 to 52 V phantom power to IEC 61938 (DPA adapter integrated) |
| Powering |
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| Connector |
3-pin male XLR |
| Finish |
matte black |
| Dimensions |
CGN 99 H/S: 13.5 x 380 mm (0.5 x 15 in.);
CGN 99 H/L: 13.5 x 580 mm (0.5 x 23 in.) |
| Net weight |
CGN 99 H/S: 480 g (17 oz.);
CGN 99 H/L: 500 g (17.7 oz.) |
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- Mini condenser microphone with clip-on mount and flexible gooseneck
- Polar pattern: cardioid
- Frequency range: 60 Hz to 20 kHz
- Sensitivity: 5 mV/Pa (-46 dBV)
- Max. SPL: 130/132 dB SPL (for 1 %/3 % THD)
- Equivalent noise level: 31 dB(A)
- Power requirement: B 29 L battery power supply, MPA V L phantom adapter, AKG WMS bodypack transmitters
- Connector: 3-pin XLR
- Cable: 1.5 m (5 ft.)
- Finish: Matte black
- Adapter plate included for easy attachment to PT 400 and PT 40.
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