Transformer-Isolated Line Input with Mute-Send for Professional Audio
The TOA L‑41S is a transformer-isolated 600-ohm line matching input module, engineered to minimize ground loop interference when connecting remote equipment over distances exceeding 15 feet. Designed for professional and commercial audio systems, it provides clean, high-quality audio transmission and ensures reliable system integration.
The L‑41S features a mute-send function, where signals present at the input terminals automatically activate both Mute Bus #1 and Mute Bus #2. Users can easily disable individual mute buses by cutting the corresponding diodes. Equipped with a removable terminal block connector, the module offers flexible, secure wiring and straightforward installation in demanding audio environments.
TOA L-41S Key Features
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Transformer-isolated 600-ohm line input to reduce ground loop interference on long cable runs (>15 feet)
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Mute-send function automatically triggers Mute Bus #1 and #2 when signal is detected
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Individual mute buses can be disconnected by cutting diodes
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Removable terminal block connector for flexible, secure wiring
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Ideal for professional sound reinforcement, communication, and commercial audio systems
TOA L-41S SPECIFICATION
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Specification
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Details
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Model
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TOA L‑41S
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Type
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Transformer-Isolated Line Input Module with Mute-Send
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Input Impedance
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600 Ω (transformer-isolated)
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Mute Function
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Mute-send activates Mute Bus #1 and #2 by default; diodes can disable individual buses
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Connector
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Removable terminal block
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Cable Distance
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Reduces ground loop issues on runs >15 feet
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Frequency Response
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20 Hz – 20 kHz
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Compatible Systems
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TOA 900 Series and other professional audio equipment
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Mounting
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Rack or panel installation
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Construction
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Durable metal housing
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Applications
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Professional audio, commercial sound reinforcement, communication systems
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Warranty
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5-year limited warranty
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