Zero-Gain Design for Lossless Original Sound Restoration： the 0dB amplification factor ensures the input signal remains unchanged after volume adjustment. It completely eliminates distortion caused by active amplification, perfectly retaining the original details, dynamics, and spatial sense of music. Premium Hardware for Precise Control：Equipped with Japan ALPS 27 series motorized potentiometer for smooth, accurate volume adjustment and Taiwan CMC 807 oxygen-free pure copper gold-plated RCA jacks. .
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