I've been thinking of doing the same thing. At 10db below reference, there's obvious distortion with my current fronts
speaker (...my fronts and center are the silver grill type...) during very loud peaks at times. This of course could also be a function of my receiver
slightly under powering my speakers as it is a very modest one. But, the single most positive attribute of line arrays that sticks out in my mind at least, seems to be the headroom possible even at high volumes. I would love to take advantage of that. But I would also really like to audition some in a decent setting first.