I have been building out my system for a bunch of months and am at the final stages. I currently have a set of KX2's as well as KX3's.
I originally was running the KX2's with a set of KX3 mids for a 3-way front. I was not happy with the volume or the mid-bass. It sounded anemic to my ears. I then decided to bridge 2 channels to drive the front mids-bass. This made a huge difference. However, the KX2's are 2ohm and the VXI is not 2ohm stable bridged.
I had a choice at that point, get a second amp to run the mids or get 4ohm mid-woofers. I decided to get the KX3's.
It sounds like the KX3 mid-woofer has slightly less punch than the KX2 to my ears.
I still have some choices as to what I can do. My system is as follows:
VX600/1i: 10in Sub
Audiocontrol 2.300: Rear fill
I first want to get feedback on the mid-bass comparison. If I end up going with the KX2 mid-bass, I will run them with the Audiocontrol through the pre-outs so I can use the DSP and that would get me to 150w.