Same as ATM73a, less power module; unterminated 55″ (1.4 m) cable. Includes AT8125 and AT8128 windscreens. See Below:
Ideal for drummers, keyboard players or anyone requiring hands-free operation, the ATM73a features a comfortable, unobtrusive headband design with side-of-mouth pickup. Its belt-mounted power module operates on battery or phantom power.
- Ideal for drummers, keyboard players or anyone requiring hands-free operation
- Comfortable, unobtrusive headband design with side-of-mouth pickup
- Belt-mounted power module operates on battery or phantom power
- Cardioid polar pattern improves isolation of desired sound source
- Also available as ATM73cW less power module; 55″ (1.4 m) cable terminated with locking 4-pin connector for A-T UniPak wireless systems
| ELEMENT | Fixed-charge back plate, permanently polarized condenser |
| POLAR PATTERN | Cardioid |
| FREQUENCY RESPONSE | 40-15,000 Hz |
| LOW FREQUENCY ROLL-OFF | 80 Hz, 18 dB/octave |
| OPEN CIRCUIT SENSITIVITY | PHANTOM: -55 dB (1.7 mV) re 1V at 1 Pa BATTERY: 56 dB (1.5 mV) re 1V at 1 Pa |
| IMPEDANCE | PHANTOM: 200 ohms BATTERY: 270 ohms |
| MAXIMUM INPUT SOUND LEVEL | PHANTOM: 146 dB SPL, 1 kHz at 1% T.H.D. BATTERY: 132 dB SPL, 1 kHz at 1% T.H.D. |
| DYNAMIC RANGE (typical) | PHANTOM: 111 dB, 1 kHz at Max SPL BATTERY: 97 dB, 1 kHz at Max SPL |
| SIGNAL-TO-NOISE RATIO | 59 dB, 1 kHz at 1 Pa |
| PHANTOM POWER REQUIREMENTS | 11-52V DC, 2 mA typical |
| BATTERY TYPE | 1.5V AA/UM3 |
| BATTERY CURRENT / LIFE | 0.4 mA / 1200 hours typical (alkaline) |
| SWITCH | Off, on-flat, on-roll-off |
| WEIGHT (MICROPHONE) | 1.1 oz (31 g) |
| WEIGHT (POWER MODULE) | 4.9 oz (139 g) |
| DIMENSIONS (MICROPHONE) | 0.39″ (10.0 mm) diameter |
| DIMENSIONS (POWER MODULE) | 3.31″ (84.0 mm) H x 2.48″ (63.0 mm) W x 0.87″ (22.0 mm) D |
| DIMENSIONS (HEADSET) | 6.49″ (165.0 mm) nominal at widest point, 2.64″ (67.0 mm) flexible boom |
| OUTPUT CONNECTOR (POWER MODULE) | Integral 3-pin XLRM-type |
| CABLE | 4.6′ (1.4 m) long (permanently attached to microphone), 0.10″ (2.6 mm) diameter, 2-conductor shielded cable with TA3F-type connector |
| ACCESSORIES FURNISHED | AT8531 power module; AT8128 windscreen; AT8125 windscreen; battery |
| AUDIO-TECHNICA CASE STYLE | M5 |
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