I would echo what Joel says above about minimizing connections and SPDIF v Speakerlink.

Also that the ID40 within the 861v6 represents the best "theoretical" solution for achieving Multichannel DSP

However, it needs to be borne in mind that (IMHO) the Control 15 still needs to be shown to be a very low Jitter Source, such as the 80x players or Transporter

The Control:10/15 had their genesis in the largely similar design Control 1, which was designed in the pre-Meridian Sooloos days.

I don't know anything more than what is above only that I don't think Meridian have fully focused on that aspect of the design yet

For those who may be skeptical, bear in mind that Meridian appear to have step-changed the performance of both the 808.3 and 861v6, purely by focusing on these underlying issues, many / most / all to do with reducing Jitter. They don't appear to have made such claims as yet about the Control 15

Also, Carl's recent Mini-Review thread, where he found the C15 Apodizing / Upsampling via Speakerlink to the 861v6 produced an (almost) identical result to his 800D Upsampling via SPDIF

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