Originally Posted by j2048b
yep clear as mud it is... thats why i had to post here as well as other places (reddit) to ask the questions...if i remember right bose stated that if u have a professional amp like one of theirs ud run it 70 or 100 volts and then connect the xmfr cable and one of the wattage cables and be done...since i am running my own i cannot trigger the other watts because its the 70/100 volt systems that let u use those, as when u have a bunch of speakers connected in parallel or series, u can choose what wats ur gonna run
but what evs haha ill try it all sorts of ways and see what happens
You seem to be conflating a little bit.
A constant voltage system uses a constant voltage, in this case 70v or 100v. 70v is perhaps the most common. The individual speaker has a transformer attached to it to step down the voltage to a usable value. This avoids the problem of impedance matching a conventional amplifier when using multiple speakers an a single run or channel.
There is nothing "professional" about a constant voltage amplifier, it's simply designed to out put a constant line voltage. That is, it has a different design topology.
Diagram A explains the connection for the speakers constant voltage transformer. You use either the 70v or 100v tap and the common connection.
Part B explains bypassing the transformer and using the speaker in a conventional way. This Bose speaker specifications indicate that the speaker presents itself as a 4Ω nominal load. If you use it as such, you would need to respect the physics, impedance characteristics, of a conventional amplifier speaker combination.
At this point it looks like you connect the white/XFRM and maybe one of the W wires together and use the Black/Com wire as connection number two.
I've never seen a connection scheme for a constant voltage speaker like this before.