Thanks Focal, But I just cannot find the PG Titanium on the market. What I can find is the RSd series and Octane-R series. You can see it here:
http://www.phoenixgold.com/2004/amps.html
What is your email address that I can contact directly and ask for advise in car audio system?
Since I will run 1000W on my PDX monoblock for my type-X sub, I also consider about the power that the 4-channel will consume. I don't want to ruin the electric system and the alternator in my car. I'm gonna use 2.4 farad cap anyway, maybe that can help.
I'd be pleased if you can tell me about the test result on PDX 4-channel. Some suggest on Orion or Infinity as well... What do you think?