If you're going to have matching subs, then get *matching subs*. The R505 is possibly discontinued, but is fortunately available for half price at Vanns.com. And if you want the easier blend, get the Velodyne SMS-1.
Also, you probably don't need to run your Cremonas above a high-pass filter. A lot of people are finding that running the mains full range helps get a good blend in many cases.
Also, you probably don't need to run your Cremonas above a high-pass filter. A lot of people are finding that running the mains full range helps get a good blend in many cases.