Hi Wayne,
There are a couple of ways we can handle the volume:
1) Fix the Trinnov at 'Unity Gain' and use an MSR (or third party control system) to handle the volume in the DSP speakers.
2) Fix the DSP speakers at Unity Gain (87), and let the Trinnov do the volume.
Pros and Cons with both systems, it will be one of the first experiments we do when we're fully set up to decide which we prefer.
Potentially 1) will benefit from the DSP receiving full digital information and utilising Meridian's hybrid digital / analogue volume controls.
2) Will mean the Trinnov truncates the digital information to the DSP as it reduces volume (potentially affecting performance), BUT does mean that other non-DSP speakers could be used for surround channels for example.
As for SpeakerLink DSP connection we will be manufacturing our own interface box which connects to the Trinnov DB25 output and provides 16 'Meridian DSP' SpeakerLink outputs, making the cabling very straightforward.
Rick