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About the Vacuum Tube Line CA-04
The Yamamoto Sound Craft CA-04 is a dedicated vacuum tube line-level preamplifier designed for high-performance analog playback. It uses a pair of Telefunken 6AK5W tubes and a zero-feedback-style line amplifier section to emphasize detail, natural tone, and low noise. The CA-04 is a minimalist purist preamp with three single-ended RCA inputs, one RCA output, and a single volume control, with selectable high- and low-gain behavior for different source types. Its chassis combines metal and Japanese cherry wood, and it is known for Yamamoto’s custom Teflon-based input sockets and vibration-conscious construction.
Specifications
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