JLH in high eff AA talks of 1" comp drivers going 500hz-19khz..i find that hard to believe and ive never heard/seen one-id like to.( i live in NZ so no chance)it has High Le :-(
low Fs :-(
In hornresp i can only get a narrow bandwidth of 80-400hz
Try using ML UTIL and input what horn you want-it may tell you more optimal t/s specs to look for,also i may try this another time (work now)
Cheers!