I have 1 slightly used Orion HCCA250G5, it's generation 5, latest edition, and the last edition,
The last batch of HCCA was made around 2003/04 or so.... and it's discontinued after Orion company sold to another company.
The amp was used by me (bought new) from March/April 2005, until October 05, and slightly used only. I don't boom.
1 thing is...it's slightly over your budget..... RM1.5k.
http://zerotohundred.com/newforums/showthread.php?t=56583
PM me for details and test power if u want
400W @ 2ohm, if you're correct about the SVC 4ohm each, very powerful....rated at 12V
or 800W @ 1ohm........ can go competition if everything done well, assuming ur sub is as Zenn said, DVC 4ohm each