No I can not at this time run the roots and put the horn on as It would Blow WINDOWS out at my apartment building I live in. I am looking for a place to set it off with eveything attached.
Keep in mind that it's going to sound like grunt without the horn on it.
It won't "blow the windows out" with the horn on it. It'll draw it's own
air with the chopper attached to the horn and sound more like it should.
With a little air pushed through it the low end will sound better but it
doesn't take much air to start getting loud.
I still have a couple of Vaccum motors if you want one.
I'll send you one for cost of shipping if you want it.
Here's some pics of the rig I made with one of the horns and choppers
I used to have.

If you don't have a chopper housing you'll have to rig something to
fit the thing to the chopper to get the most air through it.
The vac motors I have are like this one.....
If you want one let me know. Like I said I'll send it to you
for the shipping cost.

Dad, what does that CD mean on that big yellow horn? Well son, I believe it stands for Cyclone Device......