Everyone please take a step back
I am just looking for good feedback on the questions I am asking so I can try to better understand the process of horn design, and why certain things are done the way they are done. I am not saying anything is better than anything else. If I should start my own thread please tell me to do so. I just had a few questions that I thought fit here, but if not then I will start a new thread.
Best of luck with whatever you choose to build. If it is not an F-20 as I presented in the plans I prepared, please don't call it one.
No worries, I won't. I am simply asking questions to try to further understand horns and how they should be built. My current real world frame of reference is the one THT I built so that is really my only real horn experience. I used to have 4 sealed 15" subs and like the sealed array sound down low. But, now that I have heard a horn sub there is definitely something I like about that too. In the end I will most likely have 4 THT / F20 type horns from 65 to 25Hz, then 8 sealed 18s from 25 on down. I am in the process of finding what I like, and in my mind, I can only do that through testing. Both analytically and just what sounds good at the end of the day.
Do what mike says, build a second THT. I have two, and cancelling room modes is a nice thing, and you instantly get 6dB of headroom below the lowest modal frequency.
If I wanted to simply get more headroom I would have built a second one a long time ago. I am wanting to see what else is out there and find what best will suit my needs and my needs only. I am more of a build it and test kind of guy. I know I am lacking on the simulation side and just thought I could knock out another horn to test and compare to with what I have. No matter what simulation and calculations go on, in the end you still have to test the real world results. Since lilmike has a lot more experience in the simulation and building, that’s why I asked the questions I did. I am just trying to learn, that’s all.
There is a LOT more to a horn design than the frequency response. I am not happy with the acoustic loading of the F-20 at 23.5" internally.
I completely agree there is more to it than the frequency response. Could you please tell me what else I should be looking at? Could you please tell me why you do not like the acoustic loading in the wider horn? What specifically is good / bad? If this is better in a PM then please do.
Wow, was that almost 2 years ago?
All I am trying to do is share my experiences, and the rationale behind the choices I made when I came up with this design and recommendations I make. Though feelings should not be ignored, at least in my book, "experience" trumps "feeling" any day, which is why I felt obligated to share mine.
I, and I know I am not alone on this, SINCERELY appreciate your contribution to the DIY community! People like you are what make this hobby so much fun to me, and provide such a great learning experience. I am trying to chip away at learning hornresp when I can. Free time is pretty lean right now however.
Again, I really appreciate all of the feedback, please keep it coming.
Are there any plans for a front loaded horn larger / lower than the F20?
Time really flies huh!