I am in the process of layout/design of my new theater room. I am going to be using PI 4 Speakers for LCR, and PI 1 Speakers for Surrounds. I designed a set of OD Horn Speakers to compliment the LCR and surround speakers as flanking subs to tame room modes. So the frequency range is 50-200hz
Since this is my 1st attempt at Hornresp and Sketchup, I am looking for input on my design and folding before proceeding further. So there will be 7 total of these flanking subs the front 3 will be under the PI 4's and the 4rears will be under the surrounds in a column configuration. The will be driven with 20 watts RMS.
I will be using a miniDSP 10x10hd, and the plan is to cross the flanking subs, with there respective mains, as well as matrix the LFE channel to theses subs as well for frequencies above 50hz, and then use the Low LFE subs for everything under 50-60hz.
There should be an open space in between the driver and the opening into the horn. As in a empty space 24.5 mm deep by 1090.32 cm^2. Then off of this empty space you punch your hole into the horn and voila, you get you beginning. This beginning has to be the very start of the horn, it cannot tap it from any other point along the horn path.
Keep in mind that those graceful curves need only be approximated with angled reflectors. In a bass horn an angled reflector is actually preferred over a curve. you don't want to be reproducing midrange frequencies out of a bass horn, and the flat reflectors help to knock them down acting as a natural filter.
And I complement you on the nice compact fold. Nice to see someone thinking in terms different from what is normally offered. The snail folds do not give a person to much room for proper flare expansion. This type of fold will get you a better sound.