You really don't think that'll add distortion? Seriously, if you really think going that route will improve your sound, simple "Y" splitters will do the job quite adeuately. You're worring about inconsequentiual losses.
And, that's not "bi" or "Tri" amping, That's playing many speakers with their own amplifiers coverig the same frequencies and that can cause a lot of other problems such as phase issues, cancellation, and other not so nice things.
Loud does not always equal good sound. Are you familiar with the term "cacophony"?