The last years ZRS 10 was over rated. the ZRS 9 and 8 were fine, but the 10 was way too power hungry and they wanted serious voltage to make power. The new lines are great. the daytona's are basically same as the older A7 with better processors and will do rated and then some. what kind of budget do you have? I sell the Cadence DCA2500 at $775 shipped with warranty.