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In the Forum: Horn-Loaded Speakers
In the Thread: Good midbass is complicated, if not unobtainable.

Post Subject: Mid Bass is difficult indeedPosted by Scott L on: 9/9/2013

Gentlemen:

I've thought about this mid-bass challenge for quite some time. I have tried many approaches.
For the sake of my example, let's assume mid-bass to cover from 60-600Hz. That just happens to
be the classic "decade". I have to fully agree with a previous poster who said a single unit horn large
enough to do that, is just too big to physically fit in with the rest of a multi-diver, multi-horn set up.
My idea is to treat the mid-bass as a large 2way, yet still to be driven by the output of one section of
an active crossover. The output is to be fed into two different amplifiers. In order to match acoustically
with a mid-range horn, I intend to use an Altec/VOTT type short horn. I'll be lucky to get horn loading
down to 150Hz, and that's fine as I intend to also use augmenting direct radiator drivers below this.
At least 2 more 15's per side, but probably 4. In order to keep the audio signal away from these drivers
that the Altec already covers, I'll use EQ. These additional 15" drivers are NOT subs, they are augmenting
mid-bass. The subs are already exisiting in an infinite baffle manifold arrangement. In order to play back
the sound of a Grand Piano, ya just gotta move some air. This should do it. Happy listening to all.

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