I have a post in the "AMPs, Receivers, and Processors" section that has had views, but no responses yet.
The plan is to use the outputs from the TV to have an external amp automatically turn on and drive the speakers. The problem is volume control. I had thought about a subwoofer plate amp with a remote, but I can't seem to find any of those right now (I could swear they were available a few years ago). I don't want to pay $400 for an amp as this DIY soundbar design can be done pretty inexpensive with these full range drivers.
Heck, some of the expensive drivers are still only $13 each and if I used 8 of them, that's around $100 with no crossovers needed. If I were to go with larger drivers with a coax design (the Audax/Vifa driver from Parts Express for $17 each), I could do 4 and be under $100 still.
the Audax/Vifa for $17 ea:
Tymphany 2" full range for $8 ea:
Audax 3" full range for $8 ea:
Tang Band 3"" full range for $12 ea:
Or I could go with these Jamo ovals for $0.80 each (over 10) and do a whole bunch: