Thanks all for your suggestions!
The ideal rolling around in the back of my head... a minimalist point of view, not sure if its a good ideal though... I am thinking of using the preamp to control the volume/gain sent to the amps, the amps will have to be somewhat different I suspect to match the speakers I am using, ( my W & M drivers are unique as they are old school field coils 18" & 10", and I am not sure of their sensitivity yet.) I thought about an active xo, and I have a new minidsp here in a box. The less in the food chain, the better, I am thinking, it's a starting point. As I said earlier, I am just considering my options, gaining info, looking at different paths.
This has been a project mired in difficulty, especially since I am not technically inclined, but it's audio and it's my hobby of choice! Incidentally, I have investigated in using pots aka L-Pads, and have not counted them out, if one can find the proper spec, which is not as easy as you think...
Thanks again!