Thanks guys for all your input.
Bill/Musky,
Re Too small cab, its about 60 litres internal, and ported, so just within the spec for the eminence (Vented 51-144 liters/1.8-5.1cu.ft. ), and as ashdown want £85 plus £10 shipping plus vat, ie £109.25 for their blue 250w speaker), i'm more than tempted to go with Thormann who will do the EMINENCE KAPPALITE 3015LF at £109.97. The cab sounded fine before it blew, and I don't use 5 string or octaver, so real low down performance isn't the priority.
JTUK,
Yes the combo thing isn't ideal, so after a couple of years lugging the heavy combo about, I bought a sleeve for the amp to turn it into a head and effectively separate 1x15 cab, just turned the grill/logo round on the cab, so it now looks like an 'amphead' sized port at the bottom of the cab, and for big gigs when not putting bass through the PA, rig up my old (1997 I think) Marshall 4x10, which again sounds pretty good to my ears. I phoned some guys in Keighley RMJ Loudspeakers (http://www.recones.com/) who quoted £48-68 for a recone, but they didn't sound too knowledgable on the phone, they hadn't heard of ashdown! Could you supply the details of the recone guys you are using now, please?
Thanks again to all of you for your input