![U857R/U857RL CARDIOID CONDENSER ADAPTER-MOUNT GOOSENECK MICROPHONES](/images/new-backgrounds/9570/95701x1.webp)
U857R/U857RL CARDIOID CONDENSER ADAPTER-MOUNT GOOSENECK MICROPHONES
• Designed for
• Superior
• UniGuard™
•
• UniSteep® filter provides a steep
• Accepts interchangeable elements to permit angle of acceptance from 90° to 360°
•
•Direct mounts to any
The U857R stands 12.01" (305.0 mm) from the table or podium; it is also available in a 16.58" (421.0 mm) version as U857RL. The two models are identical in all other respects.
The U857R requires 11V to 52V phantom power for operation.
Output from the power module’s
An integral 80 Hz
The U857R features a 9.8' (3.0 m) permanently attached miniature cable. It connects to the provided AT8538 power module via a special
Avoid leaving the microphone in the open sun or in areas where temperatures exceed 110° F (43° C) for extended periods. Extremely high humidity should also be avoided.
NOTE:
U857R/U857RL SPECIFICATIONS†
ELEMENT | |
| permanently polarized |
| condenser |
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|
POLAR PATTERN | Cardioid |
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FREQUENCY RESPONSE | |
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LOW FREQUENCY | 80 Hz, 18 dB/octave |
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OPEN CIRCUIT SENSITIVITY | |
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IMPEDANCE | 250 ohms |
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MAXIMUM INPUT SOUND LEVEL | 139 dB SPL, 1 kHz at 1% T.H.D. |
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DYNAMIC RANGE (typical) | 115 dB, 1 kHz at Max SPL |
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70 dB, 1 kHz at 1 Pa* | |
PHANTOM POWER | |
REQUIREMENTS |
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SWITCH | Flat, |
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WEIGHT |
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U857R | 4.4 oz (124 g) |
U857RL | 4.6 oz (131 g) |
POWER MODULE | 2.9 oz (81 g) |
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DIMENSIONS |
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U857R | 12.01" (305.0 mm) long |
U857RL | 16.58" (421.0 mm) long |
BOTH | 0.48" (12.2 mm) head diameter |
POWER MODULE | 3.66" (92.9 mm) long, |
| 0.74" (18.9 mm) diameter |
|
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OUTPUT CONNECTOR | Integral |
(power module) |
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CABLE | 9.8' (3.0 m) long (permanently |
| attached to microphone), 0.13" |
| (3.2 mm) diameter, |
| shielded cable with |
| connector |
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OPTIONAL INTERCHANGEABLE | |
ELEMENTS | |
| |
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ACCESSORIES FURNISHED | AT8538 power module; |
| AT8663 |
| AT8664 |
| through adapter; AT8153 two- |
| stage foam windscreen |
|
|
†In the interest of standards development, A.T.U.S. offers full details on its test methods to other industry professionals on request.
*1 Pascal = 10 dynes/cm 2 = 10 microbars = 94 dB SPL
1Typical,
Polar Pattern | Frequency Response |
Response in dB
Frequency in Hertz
LEGEND |
| 12" or more on axis |
| ||
SCALE IS 5 DECIBELS PER DIVISION |
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LEGEND
200Hz 1 kHz 5 kHz 8 kHz
P51689 ©2005