Announcement of the new Sonos external speakers (made by Sonance for Sonos to be sold as a Sonos branded product) has the hidden tidbit that with this setup Truplay will work to tune the speakers attached to the Amp.
There is mention of automatically detecting the signature of the Sonos-specific Sonance speakers. This sounds like a DRM to purposely prevent Truplay from working with any other 3rd party speakers connected to the AMP - including standard Sonance speakers already sold and being sold.
Is there any technical reason or is this a marketing ploy to push the new Sonos/Sonance speakers as "better" for Sonos Amp? I think allowing Truplay with any speakers attached to the Amp would be more customer friendly.
All existing AVR receivers with sound correction work with any attached speaker since most AVR makers don't make any speakers they obviously assume the customer will be choosing their own brand of speakers.