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From the extra reading I've done it seems to me that there are some rules of thumb that look to be reliable for TL / Pipes and some trial and error on top of that can produce some good results. It also looks as if BR and Sealed enclosures can be modeled fairly well as lumped-elements and so if you avoid a design with parasitic resonances it shouldn't be brain surgery.
But there's a great opportunity to explore horns, which come in all shapes and sizes and include familiar elements from time to time but nevertheless span a wide range of designs (BVR, BLH, FLH, VP etc). And without something like MJKs software it's a lot of work to come up with a new design from scratch.
So I don't see myself going down the horn route, especially with the likes of the FE83En, unless I can get hold of something like MJK.
Can anyone tell me off the top of their head how much it costs for a subscription to MJKs sheets and how much it costs to get hold of MathCad to run it on ?
But there's a great opportunity to explore horns, which come in all shapes and sizes and include familiar elements from time to time but nevertheless span a wide range of designs (BVR, BLH, FLH, VP etc). And without something like MJKs software it's a lot of work to come up with a new design from scratch.
So I don't see myself going down the horn route, especially with the likes of the FE83En, unless I can get hold of something like MJK.
Can anyone tell me off the top of their head how much it costs for a subscription to MJKs sheets and how much it costs to get hold of MathCad to run it on ?
1. $25 (non-commercial, best bargain in the known universe). For specifics, visit MathCad Computer Models : Upgraded Versions
2. You can use a free copy of Mathcad Explorer 8 (MJK will provide a link) which works fine but you can't save your sheets so you'd have to re-enter your parameters each time, or never reboot 🙂
3. You can get a fully functional version by purchasing a certain $40-ish book at Amazon on Mathcad 14. This lets you save your work to a file (very handy). (The software needs to be activated and the activation process is not great.)
4. You can get a fully functional student edition of Mathcad 14 for about $100 or $120 (need a student / staff / faculty ID from a school). This is what I did. (Same activation process.)
5. If you are just starting out with horns, AJ Horn is a newie-friendly option (about $120 depending on exchange rate). Horn Response is also great, and free, but it was not as newb-friendly for me. If you can, I'd suggest using them all (and even more besides those).
2. You can use a free copy of Mathcad Explorer 8 (MJK will provide a link) which works fine but you can't save your sheets so you'd have to re-enter your parameters each time, or never reboot 🙂
3. You can get a fully functional version by purchasing a certain $40-ish book at Amazon on Mathcad 14. This lets you save your work to a file (very handy). (The software needs to be activated and the activation process is not great.)
4. You can get a fully functional student edition of Mathcad 14 for about $100 or $120 (need a student / staff / faculty ID from a school). This is what I did. (Same activation process.)
5. If you are just starting out with horns, AJ Horn is a newie-friendly option (about $120 depending on exchange rate). Horn Response is also great, and free, but it was not as newb-friendly for me. If you can, I'd suggest using them all (and even more besides those).
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Thanks! I have a Mac at home so I'll have to check this out at work on my PC.
I'm also going to check out a DBR option. I've not often seen good opinions on this type of enclosure (or Fostex recommended enclosures in general) but I like the idea of this approach. It seems to offer the promise of extended base response with good control of cone motions which is important for the FE83 (although I'm not stuck with using this driver). If I get really keen I may consider building a DBR and trying to design a horn to compare it with. Or a TL. Or........who knows. 😀
I'm also going to check out a DBR option. I've not often seen good opinions on this type of enclosure (or Fostex recommended enclosures in general) but I like the idea of this approach. It seems to offer the promise of extended base response with good control of cone motions which is important for the FE83 (although I'm not stuck with using this driver). If I get really keen I may consider building a DBR and trying to design a horn to compare it with. Or a TL. Or........who knows. 😀
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Well I played around with the demonstration of the MJK spreadsheet - looks really nice. No doubt this is a great way fwd for a new horn design.
But, I've come to my senses (thanks Scottmoose!) and will give up on the desktop horn. I don't like the idea of having to compromise the performance so much to make a small horn.
I was hoping to do something different than my last project, an Onken design, but I'm starting to think this might be the best solution still for the desktop.
... Case Closed ...
But, I've come to my senses (thanks Scottmoose!) and will give up on the desktop horn. I don't like the idea of having to compromise the performance so much to make a small horn.
I was hoping to do something different than my last project, an Onken design, but I'm starting to think this might be the best solution still for the desktop.
... Case Closed ...
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