TPA3116 for sub?

[surfstu]

Thanks buehgermeiste, a diagram will be great but I'm unsure that I want to tackle balanced operation, I have enough difficulty in try to understand single ended which is how my 12b4 preamp is setup,

Stu

 

[surfstu]

Great link u sent too, but that's baffled me too, tried to put in 20hz to 150hz but couldn't understand