Audio-Technica AT846/O Bedienungsanleitung

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OMNIDIRECTIONAL CONDENSER BOUNDARY MICROPHONE

10 dB

20k10k5k2k1k50020010050

8 kHz

200 Hz

1 kHz

5 kHz

0°

330°

300°

270°

240°

210°

180°

150°

120°

90°

60°

30°

Optional Accessories:

AT8506 four-channel 48V phantom

power supply (AC powered).

AT8801/EU single-channel 48V

phantom power supply (AC pow-

ered).

Polar Pattern

Frequency Response

SCALE IS 5 DECIBELS PER DIVISION

LEGEND

Frequency in Hertz

LEGEND 12” or more on axis

Response in dB

FORM No. ATGC-L0183-11-E

Machida • Tokyo • Japan

SPECIFICATIONS

ELEMENTFixed-charge back plate

permanently polarized condenser

POLAR PATTERNOmnidirectional

FREQUENCY RESPONSE54-20,000 Hz

OPEN CIRCUIT SENSITIVITY-33 dB (22.4 mV) re 1V at 1 Pa

IMPEDANCE100 ohms

MAXIMUM INPUT SOUND LEVEL131 dB SPL, 1 kHz at 1% T.H.D.

SIGNAL-TO-NOISE RATIO>69 dB, 1 kHz at 1Pa

PHANTOM POWER REQUIREMENTS11-52V DC, 2 mA typical

WEIGHT48 g

DIMENSIONS30.0 mm - diameter,

64.6 mm - length

OUTPUT CONNECTORIntegral 3-pin XLRM-type

ACCESSORIES FURNISHEDOne pair isolators

The AT846/O is a wide-range

condenser microphone with an

omnidirectional polar pattern.

It is designed for unobtrusive

table, ceiling or panel-mounted

applications for high-quality sound

reinforcement, teleconferencing,

professional recording, television

and other demanding sound

pickup applications.

The AT846/O is equipped

with UniGuard®RFI-shielding

technology, whic h offe rs

outstanding rejection of radio

frequency interference (RFI). The

microphone is RoHS compliant –

free from all substances specified

in the EU directive on hazardous

substances.

The microphone should be placed on a at, unobstructed mounting

surface. The small diameter capsule near the boundary eliminates

phase distortion and delivers clear, high-output performance.

The microphone requires 11V to 52V phantom power for operation.

The microphone is enclosed in a heavy-duty die-cast case and

protected by a two-layer steel mesh grille. The low-profile housing

has a low-reflectance black finish. Isolators are included with the

microphone for optional mechanical isolation from the mounting

surface.

Output is low impedance balanced. The balanced signal appears

across Pins 2 and 3, while the ground (shield) connection is Pin 1.

Output is phased so that positive acoustic pressure produces positive

voltage at Pin 2 in accordance with industry convention.

To mount the AT846/O in a ceiling or table top without the isolators,

a 20.5 mm diameter hole is required. To mount the AT846/O with the

isolators, a 23.5 mm hole is required. Place the isolators on either

side of the hole to achieve mechanical isolation from the mounting

surface.

The microphone shall be a xed-charge condenser designed for use

in table, ceiling or panel-mount boundary applications. It shall have

a frequency response of 54 Hz to 20,000 Hz and an omnidirectional

polar pattern. It shall have a self-contained power module and shall

operate from an external 11V to 52V DC phantom power source.

It shall offer outstanding rejection of radio frequency interference

(RFI). It shall be capable of handling sound input levels up to 131

dB. Nominal open circuit output voltage shall be 22.4 mV at 1 kHz, 1

Pascal. Output shall be low impedance balanced (100 ohms) from an

integral 3-pin XLRM-type connector.

The microphone shall have a maximum diameter of 30.0 mm and an

overall length of 64.6 mm. Weight shall be 48 grams. The microphone

shall be housed in an all-metal case with a two-layer steel mesh

grille. Finish shall be low reectance black. Resilient isolators shall be

provided for reduction of mechanical noise transfer from the mounting

panel.

Avoid leaving the microphone in the open sun or in areas where

temperatures exceed 43C for extended periods. Extremely high °

humidity should also be avoided.

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