There are multiple endpoints. Hard wired and Airplay
There is a main zone (and Zones 2 and 3) end point which is hardwired. Zone 2 in turn has three hard wired outputs (on to each set of speakers outlined below) from the same device (Marantz Pre-Pro) or via other external amps, Zone 3 has one set of speakers Apogee Mini Grand’s where signal is also from the Marantz Pre-Pro powered through both Odyssey Mono Extremes and an Arcam 7 channel amp (these are bi-amped speakers).
The output for these devices
is going from Mac Mini to Mytek Stereo 192 via Firewire. Then it goes from Mytek to a Marantz pre-Pro AV-7005 via analog cables. That works fine.
From there it goes to one of several zones. Zone 1 (main zone signal is handled by the Marantz with rear channels and sub-woofer by the Arcam amp.). The main channels are through a Krell KSA-80B.
The other channels on Arcam are used to power center and rear speakers in main room to compliment the B&W 802’s. Also the Martin Login Balance Force 212 sub.
Zone 2 is handled by Rotel amp (3 full channels). Arcam 7 channel power amp handles part of zone 3 (Apogees) plus handled by Odyssey Stratos Mono Extremes. These Apogees are bi-amped. Deck, kitchen and bath speakers are handled by the Rotel. They are simple speakers, nothing special.
There is also an end point using Airplay to a refurbished later generation Airport Express on a separate stereo with tube amp Yaqin MS-20L in bedroom.
All zones playing intermediately stop. It does not matter if on Airplay or Marantz Zones. So I believe this is a Roon setting issue, not a system wiring issue. Music playing has stopped twice today with different remotes showing the song in stopped mid-stream and either one being able to restart it by pushing play.
So in terms of your question, there is one output from Mac Mini communicating with the Marantz Pre-Pro. there is also a combined zone with a set of office speakers connected directly to an iMac. The other playing zones are primarily from the Pre-Pro to Zone2 which consists of kitchen, deck, bath speakers. The iMac (office computer) is combined with this zone and has a set of Vanatoo desktop speakers playing the same selections. The other completely independent zone is the Airplay (Airport Express) bedroom stereo.
If you followed this, you are indeed an audiophile.
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