15" low mid horn

I am looking for a low mid(80hz-200hz) front loaded horn box for a 15" driver to go under a mt 101. I though about using the old JBL plan 4512 but wiht a 15" driver. Any comments or opinions.

why 80, why not lower?

not doing very much is it, quite a short bandwidth

That's where I will be crossing it over from my bass bins. I guess i should of said that in my original post. Ideally I would like it to roll off around 60 or so.

yes, that makes much more sense

nrpinc wrote: That's where I will be crossing it over from my bass bins. I guess i should of said that in my original post. Ideally I would like it to roll off around 60 or so.

+1

@Mykey, what is lowest poss freq rolloff, from 15" driver like 2226, on straight FLH, with max 50cm horn length, and horn mouth similiar volume to MT121?

So far, have'nt seen any 15" FLH of size similiar to MT121, that provides better averaged sensitivity across 70-200hz, than 2226 or similiair, in reflex chamber tuned to 70hz.

simple wavelength calc to work out a 50cm horn roloff.

a 50cm horn at 1/4 wavelength will support 150hz. additional BPH tuning or porting will get it lower at the expense of SPL i imagine.

the horn mouth aint big enough either unfortunately smiley21

Thats what i ahve been running into with trying to design it. The horn is either to big to be used a s a 3way design or if small enough I can't get it low enough. I think what im going to do is a standard bass reflex with the a MT101 on top with a 1.5" comp driver inbetween.