The BAT REX 3 DAC now incorporates BAT’s second-generation SuperPak as standard.
The SuperPak assembly features the largest energy storage ever offered by BAT in a preamp or source component. One must admire the SuperPak in BAT’s reference VK-655SE solid-state power amplifier to find a SuperPak assembly of comparable energy storage. REX 3 DAC’s SuperPak dramatically adds to the dynamic performance of the component by extending the bass and offering greater midrange authority.
REX 3’s analog output stage follows the Balanced Audio Technology purist approach of using zero negative feedback to achieve the desired goals of wide bandwidth and circuit linearity. No buffers or followers are used anywhere in the signal path. REX 3 also features a high-current output stage with a total of six 6C19 vacuum tubes. One pair of 6C19 tubes serves as the current sources for the power supply of the elegant, trademarked Unistage design. Just as in BAT’s REX 3 preamplifier, REX 3 DAC also employs amorphous-core second-generation transformers for output coupling. No capacitors are utilized in the signal path.
With REX 3 DAC, BAT wanted to create the most compellingly natural reproduction of the musical source. Ringing from filters that provide a perceived albeit false excitement in playback has no place in REX 3’s design. Instead, the proprietary DAC module runs at an ultra-high clock rate while employing custom filters to reconstruct the analog signal in a way that specifically complements REX 3 DAC’s unique high-current vacuum-tube output stage.
