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In the constant evolution of its proprietary mastering process, 2xHD has progressed to a new phase called 2xHD FUSION, integrating the finest analog, with state-of-the-art digital technology. The mastering chain consists of a selection of high-end vacuum tube equipment. For the recordings on this album, the original ¼” 15 ips NAB and CCIR master tapes were played on a Nagra-T tape recorder, modified with high-end tube playback electronics, wired with OCC silver cable from the playback head direct to a Nick Doshi tube head preamplifier. The Nagra T, with its four direct drive motors, two pinch rollers and a tape tension head, has one of the best transports ever made. A custom-built carbon fiber head block and a head damping electronic system permit 2xHD FUSION to obtain a better resolution and 3D imaging. The resulting signal is then transferred into high-resolution formats by recording it in DSD 11.2 MHz using a Merging Technologies’ Horus A to D converter. All analog and digital cables that are used are state of the art. The 2xHD FUSION mastering system is powered by a super capacitor power supply, using a new technology that lowers the digital noise found in the lowest level of the spectrum. A vacuum tube NAGRA HD DAC (DSD) is used as a reference digital playback converter in order to A and B with the original analog master tape, permitting the fusion of the warmth of analog with the refinement of digital.