@Arez mentioned this too and I inquired but didn't get specific feedback. This is something that can be added in the future by shaving back the brace to fit some rubber material in between. Do you have a link or picture of what material you are using? It would be easier as it allows for some gap tolerance even if only a few mm.
It shares the reactive forces as per @planet10 in post #2.
As you mentioned, too late at this point but do appreciate the recommendations.
In hindsight, I'll need to dedicate more attention to bracing in the design phase. Especially if/when bracing the actual magnet.
Thank you for everyone's input. I'll create another thread to discuss some other topics related to my new setup.
You are seeking to split the reactive force on the driver between the baffle and the rear panel? What is the expected benefit given the sum of the forces on the cabinet will still be the same? It will introduce a low frequency mode that radiates directly at the listener which may or may not be worse than the original modes. There is also a potential issue if the force on the back of the magnet from the brace ever drops to zero when the magnet is vibrating. If this happens the stiffness experienced by the driver will be nonlinear and distortion will be generated. I can see some cons but not much in the way of pros. Perhaps I am missing something?
BTW this is a nice example of an idea that DIYers might come up with and would like to assess. I am currently collecting a list.
@andy19191 I do not have measurements to back up the effect of what happens with or without back bracing to answer your questions. Hence why I asked for advice. Even mentioned in post #3 - I've never measured the effects of different bracing to know what is gained or lost
I don't believe this bracing idea is exclusive to DIYers, there is some speaker manufactures that brace the drivers in this way from simple web searches.
If there proves to be audible flaws or cons with my cabinet, I can simply remove some material so the brace no longer is making contact with magnet. TBD.
I don't believe this bracing idea is exclusive to DIYers, there is some speaker manufactures that brace the drivers in this way from simple web searches.
If there proves to be audible flaws or cons with my cabinet, I can simply remove some material so the brace no longer is making contact with magnet. TBD.
You can use any rubber-like for this, i mostly use a kind of self adhesive window seal like this because it's cheap and widely availeble here. But any rubber layer of a few mm thick is enough to avoid the vibrations largely. I've also used parts of a rubber doormat for this in the past.
