Zapco - M-AT1 - High Quality Microphone

The Zapco M-AT1 is a precision microphone used for auto calibration (AutoTune) of DSP-IV AT audio systems. It captures sound in all directions (omnidirectional), enabling the DSP to measure room acoustics (frequency response, timing, phase) and automatically adjust equalization, delay, and crossover settings. It’s compact, uses low current, and connects via a 3 m cable for flexible placement.

• Model: M-AT1
• Type: Calibration / AutoTune Microphone for DSP-IV AT systems
• Directivity: Omnidirectional
• Frequency Response: 20 Hz – 20,000 Hz
• Sensitivity (1 kHz, 0 dB = 1 V / 1 Pa): –44 dB
• Signal-to-Noise Ratio (A-weighted, 1 kHz): 60 dB
• Output Impedance: 1 kΩ
• Operating Voltage: 4.5 V DC (up to 10 V max)
• Current Consumption: 0.5 mA
• Operating Temperature: –40° C to +70° C
• Cable Length: 3 meters
• Dimensions: 190 mm (length) × 21 mm (outer diameter) × 12.5 mm (thickness)