After much tweaking I have integrated my Vandersteen 2CE Sig II's with a pair of Rythmik F12G-SE. The Vandersteen's were good before the subs, but now the sound went to 11. As they say in Spinal Tap "this one goes to 11"....
+1
well integrated subs will afford a step change in sonic performance of many systems, even with purported high performance full range speakers...