TIE MICROPHONE AUDIOTECHNICA MT830R
Miniature omnidirectional electret lapel microphone
Can be used as a tie microphone or worn concealed in clothing or hair. Operates on phantom power only. Supplied with 7.6 m cable with TA3F connector, AT8538 power supply, 3 AT8130 windscreens and AT8420 clothing clip.
Highlights :
- Provides excellent sound pickup while remaining unobtrusive
- High intelligibility for lecturers, stage performers and TV viewers
- Large capacity for sharp, precise reproduction
- Operates on phantom power only
- 7.6 m cable from microphone to power supply module via TA3F connector
The MT830R is designed for use in professional applications where an external power supply is already available. It requires phantom power from 9 to 52V DC, which can be supplied by a mixer or console, or by an independent source to be connected in series, such as Audio-Technica's AT8801 single-channel phantom power supply or CP8506 four-channel phantom power supply.
The output of the power supply module is low-impedance balanced, on a 3-pin XLRM socket. The balanced signal is between pins 2 and 3, with the hotspot in two (the positive voltage on the hotspot is generated by positive acoustic pressure on the capsule). Ground (shield) is on pin 1.
Technical specifications
| Capsule | Static electret |
| Directivity | Omnidirectional |
| Frequency response | 30 - 20,000 Hz |
| Sensitivity | -37 dB (14.1 mV) ref 1V at 1 Pa |
| Impedance | 200 ohms |
| Maximum Acoustic Pressure | 135 dB SPL, 1 kHz at 1% THD |
| Low-cut filter | 80 Hz, 18 dB/octave |
| Switches | Flat, Low-cut |
| Dynamics | 108 dB, 1 kHz at SPL Max |
| Signal-to-noise ratio | 67 dB, 1 kHz at 1 Pa |
| Phantom power supply | 11-52V DC, 2 mA typical |
| Weight | Microphone: 1.3 g - Power supply module: 81 g |
| Dimensions | Microphone: 15.8 mm long, 8.3 mm wide, 5 mm thick - Power supply module: 92.9 mm long, Ø 18.9 mm |
| Output connector | XLRM 3-pin (power supply module output) |
| Cable | 2-conductor shielded cable, 2.5 mm in diameter and 7.6 m long (integral with microphone), with TA3F output connector |
| Supplied accessories | AT8538 power supply module; AT8130 windshield; AT8420 clothing clip |
