You don't need to be playing loud. To break in woofers, I tend to like playing 20hz loops, where the woofers go a far distance without letting out much audible sound. For mids and drivers, just play different types of brown noise at 50-60db through the night. Then, use a full spectrum glide, like the one found on Ayre's Irrational But Efficacious burn in CD to tune everything up every 24 hours or so.
