The TOA M-61F is a high-performance microphone input module designed for use with TOA’s 900 Series components and other compatible audio systems. It features a transformer-balanced microphone input with a female XLR connector, supporting phantom power for condenser microphones.
What sets the M-61F apart is its built-in compressor function with adjustable threshold and tone controls, making it ideal for managing dynamic audio sources and ensuring clear, consistent output in professional audio environments. This module is perfect for paging systems, public address setups, conference rooms, and other demanding applications.
TOA M-61F Key Features
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Transformer-balanced microphone input
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Female XLR connector for professional audio interfacing
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Phantom power supply for condenser microphones
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Built-in compressor to manage input dynamics and reduce distortion
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Threshold control for compressor sensitivity adjustment
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Tone control for optimized audio clarity
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Compatible with TOA 900 Series amplifiers and related systems
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Ideal for AV systems, public address, broadcasting, and paging applications
TOA M-61F Microphone Input with Compressor
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Power Source
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24 V DC (supplied from the main frame)
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Current Consumption
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33 mA
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Input Sensitivity
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-60 dB* (rated output: -20 dB*), adjustable: -72 to -52 dB*
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Input Impedance
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600 Ω, balanced transformer-isolated
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Frequency Response
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25 Hz - 20 kHz ±1.5 dB
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Distortion
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0.1 % or less (1 kHz, output: -60 dB*)
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Noise Level
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-86 dB* (20 Hz - 20 kHz BPF), input equivalent noise: -126 dB*
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Gain
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32 - 52 dB
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Phantom Power
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+22 V DC (for condenser-type)
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Tone Control
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100 Hz: 0 to -10 dB, 10 kHz: 0 to -10 dB
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Compressor Range
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20 dB (Threshold adjustable input level: -66 to -46 dB*)
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Connector
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Female XLR connector (XLR-3-31 equivalent)
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Dimensions
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35 (W) × 78 (H) × 88 (D) mm (1.38 × 3.07" × 3.46")"
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Weight
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Max. 110 g (0.24 lb)
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