We are pleased to announce the availability of Groove Note releases in DSD 128, DSD 256, and DSD 512 in addition to the original DSD 64 releases. These higher bit rate DSD 128, DSD 256, and DSD 512 releases are all pure DSD created using the Signalyst Pro software with the latest "EC" DSD modulators. They are not up samplings, for there are no PCM or DXD conversions involved in their production. They are re-modulations of the original DSD 64 encoding modulation that produced the DSD 64 releases. The sonic advantage to these new Stereo and Multichannel DSD 128 and DSD 256 and Stereo DSD 512 releases, as with all higher DSD bit rate releases, is the wider frequency passband prior to the onset of modulation noise.This results in the listener’s DAC using gentler and more phase linear filters for playback of the music.