The Radial StageBug SB-1 is a compact active direct box designed for acoustic instruments and bass guitars. It delivers clean, transparent signal conversion from instrument level to balanced XLR, making it ideal for live sound, touring rigs, stages, and studio use where reliability and sound quality are critical.
Key Features
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Active DI box optimised for acoustic guitar and bass
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High-headroom Class-A circuitry for clean, low-noise performance
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Handles piezo pickups and passive instruments with clarity
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Balanced XLR output for long cable runs without signal loss
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Ground lift switch to eliminate hum and ground noise
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Compact, stage-friendly steel enclosure
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Ideal for live sound, worship, studio, and touring applications
Specifications
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Type: Active Direct Box (DI)
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Input: 1/4″ instrument input
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Output: Balanced XLR
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Circuit design: Class-A active
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Power: 48V phantom power
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Application: Acoustic guitar, bass guitar, and instruments with piezo pickups
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Construction: Rugged steel chassis


















