The latest product to join Eastern Electric's MiniMax range is the new Tube DAC. The Tube DAC is all about customization. Both tube and solid-state output stages are present - selectable by a button on the front panel. D-to-A conversion is via the popular ESS 9018 Sabre DAC. The 12AU7 tube is externally accessible for easy tube rolling, and the op amps are socketed and can also be replaced with upgrades.