Geoff, have a look at the Fane 12-250c if you haven’t already. There is also a 15” version.
I’ve also been very impressed recently with a Monacor 10” coax unit, the SP310 CX, used in an OB with a couple of their 15” PA drivers.
“Music has always been a matter of energy to me, a question of fuel. Sentimental people call it inspiration, but what they really mean is fuel. I have always needed fuel. I am a serious consumer. On some nights I still believe that a car with the gas needle on empty can run about fifty more miles if you have the right music very loud on the radio”
Hunter S Thompson