The RDL STA-1 is a professional dual-channel line-level preamplifier designed for precise audio amplification, level matching, and balanced/unbalanced conversion. Each channel functions as both an electronic line transformer and line amplifier, providing up to 20 dB of gain with exceptionally low noise, ultra-low distortion, and high common-mode rejection.
The STA-1 offers flexible line interfacing for professional audio systems, allowing:
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Balanced-to-unbalanced or unbalanced-to-balanced conversion
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High-to-low or low-to-high impedance conversion
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Bridging of audio line feeds
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Accurate matching of audio levels between sources and destinations
Its clean, transparent amplification makes it ideal for studio, commercial, and installation applications where audio integrity is critical. The STA-1 operates from floating or bipolar DC power, with STA-2A recommended for installations requiring ground-referenced power.
Key Features – RDL STA-1
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Dual-channel line-level preamplifier
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Up to 20 dB gain per channel
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Balanced/unbalanced conversion
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High/low impedance conversion
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Bridging of audio line feeds
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Precise audio level matching
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Low noise, ultra-low distortion, high common-mode rejection
