Finally had a chance to really push the XLS in a more classic 2 channel set-up. And damn, they really rock when you push them!
I wanted to use a sub, but my Velodyne doesn't like the Sprout 100 & won't come out of standby. So I tried to use the one I have at my desk, but it is woefully inadequate at loud volumes, & just makes "noise" that i couldn't even be blended to meet the XLS woofers
so i gave up and just used the bass boost on the Sprout & while it still lacked in the lowest registers, it did a great job with most forms of music, really bringing a lot of detail and power.
There was still some muddiness that was caused from the bass boost smothering some details in the mids.
Really just shows i need to invest in a proper subwoofer.
But all in all, im super impressed with these speakers!