U857QU - Microphone Audio-Technica - Free user manual and instructions
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| Type | Condenser microphone with electret capsule |
| Polar Pattern | Cardioid |
| Frequency Response | 30 Hz – 20,000 Hz |
| Impedance | 100 Ω |
| Sensitivity | –40 dB (10 mV) re 1V at 1 Pa |
| Maximum SPL | 130 dB (at 1% THD), 140 dB (at 5% THD) |
| Power Requirements | Phantom power 11–52V DC |
| Connector | 3-pin XLRM |
| Dimensions | Microphone gooseneck: 457 mm (18") length; Capsule diameter: 9.4 mm (0.37") |
| Weight | 100 g (3.5 oz) |
| Included Accessories | AT8458 shock mount, 5/8"-27 to 3/8"-16 adapter |
| Optional Accessories | AT8147 windscreen, AT8401 stand clamp |
| Primary Use | Lecture, conference, pulpit, podium, or boundary surface mounting |
| Installation | XLR connection to mixer/amplifier with phantom power; gooseneck flexible positioning |
| Care and Cleaning | Wipe with a dry, soft cloth; do not use liquids or solvents |
| Safety Instructions | Do not subject to excessive impact or moisture; disconnect phantom power when not in use |
| Spare Parts | AT8153 capsule unit, AT8112 gooseneck assembly |
| Repairability | Replaceable capsule and gooseneck; other repairs by qualified personnel |
| Certifications | CE, RoHS |
Frequently Asked Questions - U857QU Audio-Technica
What power supply does the Audio-Technica U857QU require?
The U857QU requires 11–52V DC phantom power, typically provided by a mixer or audio interface with phantom power capability.
What type of connector does the U857QU use?
It uses a 3-pin XLRM (male) connector. A standard XLR cable is needed to connect to a mixer or interface.
How do I clean the U857QU microphone?
Wipe the microphone body and gooseneck with a dry, soft cloth. Do not use water, cleaners, or abrasive materials. For the grille, gently brush with a soft brush if needed.
What is the polar pattern of the U857QU?
It features a cardioid polar pattern, which picks up sound primarily from the front while rejecting ambient noise from the sides and rear.
Can I use the U857QU without phantom power?
No, the U857QU requires phantom power. Without it, the microphone will not produce any sound.
What accessories are included with the U857QU?
It comes with an AT8458 shock mount and a 5/8"-27 to 3/8"-16 stand adapter. A windscreen (AT8147) is available separately.
What is the frequency response of the U857QU?
The frequency response is 30–20,000 Hz, providing clear reproduction of speech and music.
How do I install the U857QU on a podium?
Mount the shock mount on a 5/8"-27 threaded stand or adapter. Position the gooseneck to point the microphone toward the speaker. Connect an XLR cable to a mixer with phantom power enabled.
What is the maximum SPL the U857QU can handle?
It can handle up to 130 dB SPL at 1% THD (140 dB at 5% THD), making it suitable for loud sources if necessary.
Is the gooseneck on the U857QU replaceable?
Yes, the gooseneck assembly (AT8112) and the capsule unit (AT8153) are replaceable parts. Other repairs should be performed by Audio-Technica service centers.
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USER MANUAL U857QU Audio-Technica
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Product information
Brand : Audio-Technica
Model : U857QU
Category : Microphone