TOA B-21S Balanced Line Input Module with Remote Volume Control – Transformer Isolation for Clean Audio
The TOA B-21S is a versatile balanced line input module designed for both balanced and unbalanced line-level sources such as AM/FM tuners, tape decks, and CD players. It features transformer isolation to minimize ground loop interference when connecting remote audio equipment, ensuring superior sound clarity.
Additionally, the B-21S allows remote volume control of the input signal via an external potentiometer, offering convenient and precise audio level adjustments. Ideal for professional audio installations requiring both noise reduction and flexible control.
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Power Source
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24 VDC
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Current Consumption
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Less than 27 mA
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Input Sensitivity (Rated Output 1 V )
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0.9 - 10 V (adjustable)
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Noise Output (20 Hz - 20 kHz BPF)
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Less than 50 μV
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Distortion
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Less than 0.05 %
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Frequency Response
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20 Hz - 20 kHz
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Remote Volume Control
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More than 55 dB
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Input Connector
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5P screw terminal
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Output Connector
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6P card edge-connector
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Dimensions
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35 (W) × 78 (H) × 88 (D) mm
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Weight
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90 g
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