So just curious, but why would you conclude that the LSAs can't do the job, but a paradigm studio 10/20 can? I have nothing against the paradigms, in fact I still have som S80's that are still great for HT, but I've read that the LSAs can hold their own, are very musical, and aren't known to be 'harsh' with respect to the paradigms (silk vs aluminum tweeter). But if you are just saying because they are front ported...the LSA.5 are as well...