Over loading?

My 5250 says - Current Capacity 45 amps peak per channel, x5.
The 2003 says - Current Capacity 60 amperes peak, per channel, x3.
Correction. 405 total.

Darn if it doesn't say 60 amps peak per channel. Somebody smarter than me will be along shortly but if it was an issue it would have a 30 amp plug. There are very few amps that require 30 amp service. I have had amps that will dim the lights with each beat of the music but I was very young back then and don’t do that stuff anymore.

So the 5250 =  250 watts x 5, 8 Ω / 385 watts x 5, 4 Ω.
The 2003 =  200 watts RMS x 3, 20 Hz - 20 kHz, 8 Ω, all channels driven  300 watts RMS x 3, 20 Hz - 20 kHz, 4 Ω, all channels driven.
So which do I go by? 8 or 4 ohm?