The High-Resolution Music Download market was originally created for the audiophile and the discerning music enthusiast communities. With the current availability to download and play higher resolutions, the market has grown and evolved from PCM technology (96/24kHz, 192kHz/24 bit), to Direct Stream Digital (DSD 2.8MHz, DSD 5.6 MHz, DSD 11.2 MHz) and Digital eXtreme Definition (DXD) to offer a total, natural sound. It’s the new way of selling quality music reproduction on-line.


The 2xHD Fusion Mastering System is an innovation in audio restoration for a virtual audio reality: 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 (back to the future technology).

The mastering chain consists of a selection of high-end vacuum tube equipment; The original ¼" 15 ips NagraMaster curve, NAB or CCIR master tapes are played on a Nagra-T tape recorder which was modified with high-end tube playback electronics, and wired with OCC silver cable from the playback head direct to a Nick Doshi tube head preamplifier - the Nagra T, which - 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. If the original master is in 96kHz/24 bit or 192kHz/24bit a High-end vacuum tube NAGRA HD DAC X is used to playback the digital master to be able to do the mastering in the analog domain.

The resulting signal is then transferred to high resolution formats by recording it in DXD using a custom 2xHD Technologies A to D converter. All analog and digital cables used are state of the art Siltech. The 2xHD FUSION mastering system is powered by a super capacitor power supply, using a new technology that lowers the digital noise that originates in the lowest level of the spectrum. A vacuum tube NAGRA HD DAC X 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.
Pure Emotion

High Definition Equipment


Selected for their sheer musicality these vintage recorders have all been adjusted and highly modified by 2xHD.

Analog to digital (AD) converters are also modified and optimized by 2xHD.

Records all high resolution formats. Its Masscore system allows for great flexibility.

Should the analog tape be too severely damaged or lost we can use a vinyl version with spectacular results. The Kronos has been designed by Louis Desjardins with the help of 2xHD.

All digital and analog cables are reduced to a minimum optimal length in the digital conversion and mastering system.


2xHD music remastering system combines the best of
vintage analog quality with
state of the art digital technology

High Definition Equipment High Definition Equipment High Definition Equipment

▲ Telefunken M15A modified with OTL playback electronics (discrete components), special resonator free technology circuit. The head block is a customized SAKI ¼”, ½”, 15 ips and 30ips.

▲ 1976 Nagra IV-S with stereo head (2.75mm) and a QGB adaptor, one of the most musical recorders.

High Definition Equipment

▲ A selection of A/D and D/A: dCS 905 modified with a dual power supply – one per channel - for the most natural DXD sound. Nagra HD Dac tubes and Nagra Jazz tubes are used for a great reference in DXD and DSD2 playback.

▲ Nagra-T modified with all tubes playback electronics (the Telefunken EF806 tubes), wired with OCC silver cables from the head. The Nagra T is one of the best transports ever made with its four direct drive motors and a tape sensor head.

High Definition Equipment High Definition Equipment

▲ A selection of Hi-end tube preamplifiers and compressors from DW Fearn, Nagra, Bottlehead, Millenia, Pendulum - all with selected vintage hi-end tubes.

◀︎ Designed by John Dunlavy, the model IVa Signature reference speaker is one of the most neutral speakers on the planet.

High-power transistor amplifier or Hi-end single-end 300B (Western Electric) are selected to power the Dunlavy speakers. The playback system is in a large room for a better frequency response down to 20Hz. ▶︎

▼ Custom-built computer with linear power supply is used with the Pyramix masscore DXD/DSD5.6 mHz system.

High Definition Equipment