sorry you are incorrect here. its better to have more power available then less. Just because you can get 1000 rms @1ohm, it does not mean you have to have it at full tilt everytime. There is alot you need to read and learn before you can tell people that they are wrong. Generally when I am not familiar with a subject "I try" to refrain from telling people what to do.
I run 1000 RMS on my sa12 daily and it run just fine