I did use two of the Bose L1s together on several larger shows, but it is just overkill for 99 percent of the stuff I do. Once I tried using two Compacts together I never had occasion to use the big ones again, so I eventually sold them both.
Having said this, the sound with two of the large Bose systems is just so good it is scary.
If you are not hearing mids, there is something wrong with your hearing or your e.q. I ran them flat and only e.q.d from the keyboard a little.