ZStage

About the ZStage

The Decware ZSTAGE is a hand-built, purist line-level tube preamp/gain stage designed to enhance the fidelity of DACs, CD players, or any line-level source. It operates in Class A with no feedback, featuring a point-to-point wiring layout, solid copper ground buss, and minimal parts (one capacitor and one resistor per channel) for exceptional transparency. It includes a bias switch for two distinct sound signatures (laid-back or aggressive), variable output up to 5 volts for added weight and punch, and supports tube rolling with various 12AU7-compatible tubes like 12AT7, 12BH7, 5751, or 12AX7. Primary use is between DAC/preamp or preamp/amp, with easy installation via single RCA input/output pairs (color-coded left/right). The chassis stays cool, suitable for unrestricted placement. Currently in production with a lifetime warranty, built to order on an accelerated schedule.