THe inlays are different. In the 470 thay all have the same size, in the 470DX they decrease their size (wide) as you go up the neck. The binding is the other difference.
The powersound pups suck. The only decent Ibanez pups are the IBZ/USA Fs and C, the V7/V8, the HB2, and the SB1. But I would swap any of those for Di Marzios or
Seymour Duncan anyway.