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In the Forum: Horn-Loaded Speakers
In the Thread: Mid-bass Hornresp (V51.30) simulations
Post Subject: 140 vs 110 hz hornsPosted by koh123 on: 7/2/2021
My COVID-19 brain fog has finally lifted. I have been using HORNRESP as the gold standard for horn design. Upon reflection I forgot that we ultimately listen to the sound produced and not the beautiful computer simulated SPL profile. So I went back to old school thinking and re-generated the mid-bass tractrix horn with the mouth circumference being one wavelength in size at the cut off frequency. The resulting SPL profile was still the same as before. Now that's the SPL profile, not the actual sound. I'm now thinking that HORNRESP is great for designing horns that have to be smaller than optimal size. However I have a dedicated listening room large enough for a mid-bass horn of your proportions so why not (18x30 with a 12 ft ceiling)
My bass horn is a 8x5x2 ft spiral exponential horn(InlowSound.com) which yields an effective length of 17 feet.
So I am now rethinking the dimensions for my midrange tractrix horn. I am now thinking of using the same logic used for the mid-bass horn. That is, 900Hz at cut-off yields a horn mouth diameter of 5" and the JBL 2446 yields a throat diameter of 2" and then use HORNRESP calculate the rest. What are your thoughts on this? What are you using above your 110Hz mid-bass horn?
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