Hi,
I'm not in the same situation but for various reasons have settled on an A-bus type solution. Don't overlook the actual material cost of the speaker wires you will need, especially if your 12-channel AMP is far away from your bedroom spaces. Some audio distribution systems also require you to run power over speaker wire equivalents even though the audio is sent over CAT5, so you still end up with the copper cost of two runs of 2 conductor or one run of 4 conductor.
If you go the route of using something like Lyriq's amplified keypads, realize you don't need the amplified keypad power source module to sit next to the intercom hub -- you can move it as close as workeable to your speakers as long as you have someplace to plug it into AC.
Jamie
I'm not in the same situation but for various reasons have settled on an A-bus type solution. Don't overlook the actual material cost of the speaker wires you will need, especially if your 12-channel AMP is far away from your bedroom spaces. Some audio distribution systems also require you to run power over speaker wire equivalents even though the audio is sent over CAT5, so you still end up with the copper cost of two runs of 2 conductor or one run of 4 conductor.
If you go the route of using something like Lyriq's amplified keypads, realize you don't need the amplified keypad power source module to sit next to the intercom hub -- you can move it as close as workeable to your speakers as long as you have someplace to plug it into AC.
Jamie