Forgiveness if this is a bit off topic, but might you elucidate this point a bit more? I thought I recalled
@Floyd Toole writing, that eq only really affects the ON curve: if so, then one cannot use the DI to eq a speaker, as any attempt to do so will merely alter the ON curve, rather than the DI. Indeed, no curve at all can be used, other than the ON curve (though perhaps the ER curve can be useful: I've had great success, for example, using an amalgamation of the ON and ER curves - something I'd like to investigate more rigourously).