My sound system is a massive system, for dance club music, resides in the bumper cars in Coney Island.
But, again, I'll agree with you, the 2445 works well with a bit more power, and I have heard them, and that does work.
As a matter of fact, however, once I changed my old Altec 15,s into my current woofers, my old d-150A wasn't cuttin it anymore either. I went thru a few different amps, and I hit my sonic " YEAH, Thats It " with a Crown DC-300A running my 6 2441,s!