Model no:   QA-227 deluxe-Mk2

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This unit is a fully balanced input and balanced output state-of-the-art pre-amplifier. The UX-227 is a single triode antique vacuum tube, which has very good linearity for both large and small input signals and with excellent sonic performance. The QA-227 deluxe features an ultra heavy current tube rectifier with NOS oil filter capacitors and a high grade choke, oil filled coupling capacitors , black beauty coupling capacitors, and high grade philips output capacitors. Boasting a separate filament transformer and high-voltage transformer enhances the dynamic range and clarity.

This pre-amplifier is built with no compromise in component quality, and it virtues can be heard in the characteristic delivery of this preamp: very sweet , liquid, and realistic sound quality. It boasts excellent dynamic range, musicality, high definition and a very detailed, deep sound stage. This pre-amp is suitable for almost any type of music reproduction, it can outperform almost any mass-market available pre-amp in any price range.

The 5U4G tube rectifier can further upgrade by our super rectifier STR-104 or higher models , direct plug and play without any mod required.

With this super rectifier adaptor, you can use 300B, 2A3 , 45 , 50 , 80, 83, 1616 , 3B28 or 866A as rectifier tubes option.

(optional chassis : Mirror steel, solid-oak )