• 58413_TOA-900-Series-Microphone-Input-Module-Balanced-Transformer-Input-_-Mute-Send_ALT01sqr
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TOA 900 Series Microphone Input Module Balanced Transformer Input | Mute-Send

TOA 900 Series Microphone Input Module Balanced Transformer Input | Mute-Send

SoundPro Item: 58413 | Part Number: M-41S

$130.00
$161.00 $130.00
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MSRP: $161.00 | MAP: $130.00

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  • Transformer-Balanced Input Rejects Common-Mode Noise For Clean Mic Signal Pickup
  • Selectable Phantom Power Supports Both Condenser And Dynamic Microphone Types
  • High-Cut And Low-Cut Filters Shape Tone Directly At The Input Stage
  • Adjustable Gain Matches Sensitivity To A Wide Range Of Microphone Outputs
  • Power Supplied By The 900 Series Main Frame Simplifies Module Installation
  • Available With Multiple Connector Types To Suit Varied Installation Requirements
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The TOA 900 Series Microphone Input Modules are modular mic preamp cards designed for integration into TOA 900 Series main frames and compatible equipment. Each module accepts a balanced, low-impedance microphone signal through a transformer-isolated input, delivering clean gain with a low noise floor suited to demanding installed sound environments. These modules are the building block for multi-zone paging, conference systems, house-of-worship audio, and commercial installation projects where consistent mic performance and system-level control are required.

The module family covers a wide range of connectivity and control options, allowing integrators to specify the exact input configuration and control behavior their installation demands without adding external hardware. Selectable phantom power accommodates condenser microphones, while independent high-cut and low-cut filters handle room acoustics and vocal intelligibility at the source before the signal reaches the main frame. The 900 Series modular architecture means these cards slot directly into the frame's expansion bays, keeping rack space efficient and wiring organized.

Compared to generic rack-mount mic preamps, these modules benefit from native 900 Series integration: power is supplied by the main frame, gain and tone adjustments are made at the module level, and certain variants add muting, remote volume, or compression functions that work within the TOA system's control bus. For integrators specifying permanent installs in boardrooms, airports, retail environments, or performance venues, the 900 Series mic input module range provides a scalable, purpose-built solution.

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Specifications

Electrical
Power Supply
24 V DC
Current Consumption
Under 15 mA
Phantom Power
Over 20 V
Audio
Input Sensitivity (Rated Output 100 mV)
0.2 - 5.0 mV (adjustable)
Frequency Response
25 - 20,000 Hz
Distortion
Under 0.2%
Noise Output
Under 50 μV
Signal-Activated Muting
0.3 - 0.8 mV
High Cut Filter (10 kHz)
-7 to -13 dB
Low Cut Filter (100 Hz)
-5 to -15 dB
Connectivity
Input Connector
3P terminal block
Output Connector
6P card edge-connector
Dimensions
Width
35 mm
Height
78 mm
Depth
88 mm
Weight
Unit Weight
80 g

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