I received a bi wire set of the SP11 yesterday. I had orginally ordered the SP9, and Captain offered to upgrade me to the SP11s. Cap is a good guy to work with BTW. The SP11 sound great out of the box, ostensibly neutral overall, excellent freq extension on both ends. I did have an odd bi wire setup previously, using Morrow SP6 for the bass and silver Cleardays for the highs, so perhaps it was easy to improve on that, but with the SP11 there is an immediate coherence to the sound. I swear it sounds like I’m closer to the front of the stage, comparatively speaking. Weird, and quite enjoyable. Compared to my bi wire setup before, there is SLIGHTLY less treble extension, but a "fuller" sound overall. There is zero harshness at all, so I’m not waiting for some magical break in to smooth things out, so if anything changes from here it’s gravy.