Here is something that I found on the web.
The ES9016 Sabre32 Ultra DAC is the latest addition to the worlds highest performance and critically acclaimed Sabre32 DAC family. With ESS patented 32-bit HyperstreamTM DAC architecture and Time Domain Jitter Eliminator, the ES9016 SABRE32 Ultra DAC delivers spectacular music with an unsurpassed sound stage, with up to 128dB dynamic range and 0.0003% (-110dB) total harmonic distortion, and free from clock jitter common in digital audio systems.
So much for installing after market clocks which are pretty expensive and time consuming to do.
http://www.esstech.com/index.php?p=products_DAC
The ES9016 Sabre32 Ultra DAC is the latest addition to the worlds highest performance and critically acclaimed Sabre32 DAC family. With ESS patented 32-bit HyperstreamTM DAC architecture and Time Domain Jitter Eliminator, the ES9016 SABRE32 Ultra DAC delivers spectacular music with an unsurpassed sound stage, with up to 128dB dynamic range and 0.0003% (-110dB) total harmonic distortion, and free from clock jitter common in digital audio systems.
So much for installing after market clocks which are pretty expensive and time consuming to do.
http://www.esstech.com/index.php?p=products_DAC