Many thanks for your careful response and technical recommendation/reference. I'm a newbie to DAW but since I compose music (mostly songs with full arangement) I need to have a DAW and learn it to use.
Now, having your technical recommendation, first I'll have to allocate a competent source who can sell and build this new hardware for me. Then I'll have to consider the price. (I've a low budget, anyway.) Have you got an idea, how much this proposed harware can be?