I guess we can't ask questions on here anymore or ask for other's input and experience before we make a purchase either.
FYI... I already have a Sundown 4 ch amp.. and did the same kind of research on that amp and asked for other's opinion on it as well before I bought one.
Now I might be considering the RD as the price seems very competitive.. just didn't want to regret not asking for you folks about the product, the company, etc before spending my hard earned money.
You probably wouldn't understand that though.