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ATM250DE Specification Sheet
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ATM250DE Submittal Sheet
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ATM250DE Dual-Element Instrument Microphone

The ATM250DE dual-element instrument microphone features cardioid condenser and hypercardioid dynamic capsules combined in a single housing. Audio-Technica’s innovative use of two polar patterns is ideal for kick drum: the hypercardioid dynamic element focuses tightly on the aggressive attack of the beater, while the condenser captures the round tonalities of the shell. The elements are positioned in a perfect phase relationship, something practically impossible to achieve with two separate microphones. Includes a professional isolation clamp to provide secure mounting, versatile positioning and effective dampening of unwanted mechanical noise.

Audio-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, percussion and other instruments

Integral 80 Hz 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

SPECIFICATIONS
ELEMENTS	Condenser, dynamic
POLAR PATTERNS	Cardioid (condenser) Hypercardioid (dynamic)
FREQUENCY RESPONSE	40-20,000 Hz (condenser) 40-15,000 Hz (dynamic)
LOW FREQUENCY ROLL-OFF	80 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)
IMPEDANCE	50 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 RATIO	68 dB, 1 kHz at 1 Pa (condenser)
PHANTOM POWER REQUIREMENTS	11-52V DC, 3.5 mA typical (condenser)
SWITCHES	Flat, roll-off; 10 dB pad (condenser only)
WEIGHT	320 g (11.3 oz)
DIMENSIONS	143.6 mm (5.65") long, 55.0 mm (2.17") diameter
OUTPUT CONNECTOR	Integral 5-pin XLRM-type
CABLE	5.0 m (16.5') dual shielded, 8-conductor cable, 5-pin XLRF-type connector at microphone, two 3-pin XLRM-type output connectors
ACCESSORIES FURNISHED	AT8471 isolation clamp for 5/8"-27 threaded stands; 5/8"-27 to 3/8"-16 adapter; soft protective pouch
AUDIO-TECHNICA CASE STYLE	R9

SPECIFICATION GRAPHS
Click on the chart to view the larger image
	POLAR PATTERN CONDENSER
	POLAR PATTERN DYNAMIC
	FREQUENCY RESPONSE CONDENSER
	FREQUENCY RESPONSE DYNAMIC