I have 2 Ashley DSp's,the 4.24 and the 3.24. I sent ther 4.24 back for some repairs last year and bought the new unit so I had something other than my old Ashley analogue crossover.The new unit does not have the same software as the old one. I am really disapointed with the new software.It looks cartoonish and you have to have multiple windows open to make changes.The older original software was more professional looking and easier to see what is going on. Hard to inderstand why they would take something that worked great and was easy to use and change it? I talked to another provider over the summer who also uses Ashley and he has the same opinion.