Like I said, I gave two 6105's and s full size wavebox. My power supplies all have the jumper technology. I just bought them 2 months ago and now I see you have a jumper less power supply. Is that the only change? Can I upgrade to the new "electronic power" supply? I also have a tunze controller as well. What are the benefits to this new model? Also, did I mention how disapointed I am that I did not get the newer model??