I had a chat with Paul Baldwin, thanks Edward.
He was very helpful indeed, top bloke. Suggested the x-overs to be freshened up, and go from there.
He thought the driver combination and the implementation would give very very good HiFi results!
Lots of good advice here too, so we shall see and i will let you know how they come out.
The 300b pp with no feedback won't be sufficient to bring out the best from them so will have to match an Amp to test (SS?).
I take it on the basis that whoever put these together must have put those drivers with the horns in that configuration for a reason!
So a cross over do over is the first step, and the cheapest..
stay tuned! I agree it would be a shame to break em up.
cheers