Audio-Technica ATM250DE Handleiding

Audio-Technica Microfoon ATM250DE

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DUAL-ELEMENT INSTRUMENT MICROPHONE

- Audip-Technica's proven dual-element design features two elements

(condenser and dynamic) enclosed in a single housing.

- Neodymium dynamic element provides punch and attack, while the

condenser element captures the full audio spectrum.

- Elements are positioned in a perfect phase relationship, something

practically unachievable with two separate microphones.

- Perfect for kick drum, guitar amps and instrument use.

- Integral 80Hz HPF switch and 10 dB pad (condenser element).

- Versatile mounting options and effective dampening of mechanical noise

thanks to included AT8471 isolation clamp.

- Corrosion-resistant contacts from gold-plated XLRM-type connector.

- Rugged, all-metal design and construction for years of trouble-free use.

The ATM250DE is intended for use in professional applications where

remote power is available. It required 11V to 52V DC phantom power

only to the condenser output of the supplied cable.

Output from the microphone’s 5-pin XLRM-type connector is low

impedance (Lo-Z) balanced. The included 5.0 m shielded cable features

a 5-pin XLRF-type input connector and two standard 3-pin XLRM-type

output connectors. The balanced signals appear across Pins 2 and 3

(condenser) and Pins 4 and 5 (dynamic). Pin 1 is ground (shield). Output

is phased so that positive acoustic pressure produces positive voltage at

Pin 2 and 4.

To avoid phase cancellation and poor sound, all mic cables must be wired

consistently: Pin 1-to-Pin 1, etc.

An integral 80Hz hi-pass lter on the condenser element provides easy

switching from a at frequency response to a low-end roll-off. The roll-

off position reduces the pickup of low-frequency ambient noise (such as

trafc, air-handling systems, etc.), room reverberation and mechanically

coupled vibrations.

The ATM250DE’s condenser element is also equipped with a switchable

10 dB pad that lowers the microphones’s sensitivity, thus providing

higher SPL capability for exible use with a wide range of performers and

system congurations.

The ATM250DE includes an AT8471 isolation clamp to provide secure

mounting, versatile positioning and effective dampening of unwanted

mechanical noise.

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

temperatures exceed 40°C for extended periods. Extremely high humidity

should also be avoided. Take care to keep foreign particles from

entering the windscreen. An accumulation of iron or steel lings on

the diaphragm, and/or foreign material in the windscreen’s mesh

surface, can degrade performance.FORM No. ATGC-L0032-06-E

Machida • Tokyo • Japan

SPECIFICATIONS

ELEMENTCondenser, dynamic

POLAR PATTERNCardioid (condenser)

Hypercardiod (dynamic)

FREQUENCY RESPONSE40-20,000 Hz (condenser)

40-15,000 Hz (dynamic)

LOW FREQUENCY ROLL-OFF80 Hz, 12 dB/octave (condenser)

OPEN CIRCUIT SENSITIVITY

-49 dB (3.5 mV) re 1V at 1 Pa (condenser)

-53 dB (2.2 mV) re 1V at 1 Pa (dynamic)

IMPEDANCE50 ohms (condenser)

600 ohms (dynamic)

MAXIMUM INPUT SOUND LEVEL

148 dB SPL, 1 kHz at 1% T.H.D. (condenser)

DYNAMIC RANGE (typical)122 dB, 1 kHz at Max SPL (condenser)

SIGNAL-TO-NOISE RATIO68 dB, 1 kHz at 1 Pa (condenser)

PHANTOM POWER REQUIREMENTS11-52V DC, 3.5 mA typical (condenser)

SWITCHESFlat, roll-off; 10 dB pad

WEIGHT (less cable and accessories)320 g

DIMENSIONS143.6 mm - long,

55.0 mm - diameter

OUTPUT CONNECTORIntegral 5-pin XLRM-type

CABLE

5.0 m dual shielded,

8-conductor cable,

5-pin XLRF-type connector at microphone,

two 3-pin XLRM-type output connector

ACCESSORIES FURNISHEDAT8471 isolation clamp for ⅝”-27

threaded stand;

⅝”-27 to ⅜”-16 threaded adapter;

Soft protective pouch

8 kHz

200 Hz

1 kHz

5 kHz

0°

330°

300°

270°

240°

210°

180°

150°

120°

90°

60°

30°

Polar Pattern (Condenser)

SCALE IS 5 DECIBELS PER DIVISION

LEGEND

10 dB

20k10k5k2k1k50020010050

Frequency Response (Condenser)

Frequency in Hertz

LEGEND 12” or more on axis

Response in dB

Roll-off