Hi everyone,I have a question about incorporating a front-loaded horn into a speaker design program. Here's the scenario:I've already optimized a vented alignment for my 15" woofer using a program. Now, I want to add a 30cm long front-loaded horn (similar to those used in EV PA systems or Altec Voice of the Theater designs) that will operate in the 200-400Hz range.The issue is this:
- Can I simply use the reflex box parameters from the program, or do I need to model the entire system (box + horn) together?
- I suspect the parameters I calculated might only apply to the box and driver without considering the horn. If that's the case, is there a way to adjust the parameters to account for the acoustic impedance introduced by the mass of air in the front-loaded horn?
Not familiar with Speakerbench potential for modeling horn speakers.
Hornresp can model pretty much any type or combination of horn and enclosure hybrid that you have ever seen or can imagine:
http://www.hornresp.net/
The Hornresp simulations very closely match the measured response of cabinets accurately built to the input specifications, making it easy to see the effect of changing any horn parameters independently from the vented alignment.
David McBean has been updating and supporting his Hornresp program on DIY audio since 2008.
His sticky thread in the Subwoofer section has over 15,000 entries, covering everything from subwoofers to tweeter horns and every type of alignment.
Art
Oh, I use HornResp a lot! 🙂 I proabably will take the alignment I modelled with this, inport into HornResp, then add the horn and make sure the bass paraemteres get adjusted to be identical. This speaker bench program is really cool. Look at the earlier entries. It gives you ways to measure the woofer and with optimized parameters, get some alignments that only are possible if your drivers are within a certain range. Definaetly seems to be the most capable of relfex box simulations and obtaining the alignments within the error range of parameters.
