MT838IIa - Microphone Audio-Technica - Free user manual and instructions
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| Model | MT838IIa |
| Brand | Audio-Technica |
| Product Type | Lavalier Microphone |
| Element | Fixed-charge back plate, permanently polarized condenser |
| Polar Pattern | Omnidirectional |
| Frequency Response | 30 – 20,000 Hz |
| Open Circuit Sensitivity | -62 dB (1.0 mV) re 1V at 1 Pa |
| Impedance | 250 ohms |
| Maximum Input Sound Level | 145 dB SPL (1 kHz at 1% THD) |
| Signal-to-Noise Ratio | 70 dB (1 kHz at 1 Pa) |
| Phantom Power Requirements | 11-52V DC, 2 mA typical |
| Cable Length | 1.4 m (55") permanently attached |
| Output Connector | 3-pin XLRM-type (with UniPak connector for wireless systems) |
| Dimensions | Body: 23.0 mm (0.91") diameter, 44.0 mm (1.73") length |
| Weight | Microphone: 2.0 g (0.07 oz); Cable: 20 g (0.71 oz) |
| Accessories Included | AT8531 power module, AT8432 microphone holder, AT8154 windscreen, clothing clip, carrying case |
| Cleaning and Maintenance | Clean grille with soft brush; avoid moisture; store in case |
| Safety Precautions | Do not expose to extreme temperatures or humidity; use phantom power correctly |
| Spare Parts and Repairability | Contact authorized service centers for repairs; windscreen and clip replaceable |
| General Information | Designed for professional broadcasting, theater, and speech reinforcement |
Frequently Asked Questions - MT838IIa Audio-Technica
What is the Audio-Technica MT838IIa microphone used for?
The MT838IIa is a miniature omnidirectional condenser lavalier microphone ideal for hands-free use in broadcasting, theater, public speaking, and video production.
Does the MT838IIa require phantom power?
Yes, it requires 11-52V DC phantom power (2 mA typical). It is commonly used with the included AT8531 power module or a mixer/interface with phantom power.
Can I use the MT838IIa with a wireless system?
Yes, the microphone comes with a UniPak connector that is compatible with Audio-Technica and other wireless bodypack transmitters.
What is the polar pattern of the MT838IIa?
It has an omnidirectional polar pattern, capturing sound equally from all directions, which helps reduce handling noise and pickup of ambient sound.
What accessories are included with the MT838IIa?
Included accessories: AT8531 power module, AT8432 microphone holder, AT8154 windscreen, clothing clip, and carrying case.
How do I clean the MT838IIa microphone?
Gently brush the grille with a soft brush to remove dust. Avoid moisture and do not use chemical cleaners. Store in the carrying case when not in use.
What is the frequency response of the MT838IIa?
The frequency response is 30 – 20,000 Hz, suitable for capturing clear, natural sound across a wide range.
Is the MT838IIa waterproof?
No, the MT838IIa is not waterproof. Avoid exposure to rain, sweat, or high humidity. Use a windscreen for outdoor protection.
How long is the cable on the MT838IIa?
The permanently attached cable is 1.4 meters (55 inches) long, providing flexibility for concealment.
Where can I find replacement parts or repairs for the MT838IIa?
Contact an authorized Audio-Technica service center for repairs or replacement parts such as windscreens and clips.
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USER MANUAL MT838IIa Audio-Technica
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Product information
Brand : Audio-Technica
Model : MT838IIa
Category : Microphone