I was looking at the Alpine PDX-V9 and it shows the same output, 500wrms x 1 + 100wrms x 4, for both 2 ohms and 4 ohms. If this is the case would I be better off running the sub at 2 or 4 ohms? Should I match that same impedance for the speakers or are they capable of still sending the correct power to the two different categories of channels.
I was also considering the Cadence ZRS-C8, or even doing a monoblock for the subwoofer and a 4 channel for the rest of the speakers. Any suggestions? I'm trying to keep the cost down as much as possible, but don't want to skimp now and have to pay more to upgrade later. I am looking for an amplifier first, then I will pick speakers around that (may be backwards, but 5 channels don't offer too many options).