I have a facility that already has ceiling speakers that can be connected over bluetooth or by a 3.5mm input. At present I use the headphone output from a Play:5 (Gen1) to drive them and it works well. It seems a waste of the Play:5 as I can use that elsewhere so I’d like to replace it. Would I need a Connect or a Connect:Amp? The reason for my confusion is that the speakers are mains powered and the Play:5 won’t drive them unless the power is on, even though I imagined that the power is for the bluetooth, which I don’t use.