Hi,
I have been designing.my 2way bass reflex speakers and now they are complete, Proud moment for me 🙂😉, I have checked the frequency response which seems to be ok, however removing all these biases I like them when they play music.
I am stuck at one point here on my winISD model, where it shows me Cone Excursion exceeds limits from 59Hz to 145Hz over full signal power of my amplifier @40Watt. I am paranoid on this as I fear that may damage my dayton speakers at this level. The cone excursion starts to exceed from 10watts of power.
I am attaching the graphs from winISD and need your inputs and opinion how to limit the excursion as I am stuck in the situation. Also I will appreciate any other design inputs good or bad on improving the design.
Thanks folks and look to have your support, help are welcome.!!!!!!
Regards
I have been designing.my 2way bass reflex speakers and now they are complete, Proud moment for me 🙂😉, I have checked the frequency response which seems to be ok, however removing all these biases I like them when they play music.
I am stuck at one point here on my winISD model, where it shows me Cone Excursion exceeds limits from 59Hz to 145Hz over full signal power of my amplifier @40Watt. I am paranoid on this as I fear that may damage my dayton speakers at this level. The cone excursion starts to exceed from 10watts of power.
I am attaching the graphs from winISD and need your inputs and opinion how to limit the excursion as I am stuck in the situation. Also I will appreciate any other design inputs good or bad on improving the design.
Thanks folks and look to have your support, help are welcome.!!!!!!
Regards
Attachments
I think you're looking at this a bit backwards. Just because your amp is capable of delivering 40W doesn't mean you'll run it at 40W - that's what your volume control is for 🙂 (You can also drive a 500hp car without outputting full power all the time).
You need to reduce the input power in the simulation to a level where it doesn't damage your driver in the frequency range that you need and then do your simulations from there (this will also affect how large your reflex tube needs to be). Once you've done that, you can then see the max SPL that the driver will put out and gauge if that is sufficient for your needs. Best guess: For a home environment is that it will be plenty regardless of the figures.
If it turns out it is not enough, you either need to change the box volume/tuning or - more likely - find a driver with different specs.
You need to reduce the input power in the simulation to a level where it doesn't damage your driver in the frequency range that you need and then do your simulations from there (this will also affect how large your reflex tube needs to be). Once you've done that, you can then see the max SPL that the driver will put out and gauge if that is sufficient for your needs. Best guess: For a home environment is that it will be plenty regardless of the figures.
If it turns out it is not enough, you either need to change the box volume/tuning or - more likely - find a driver with different specs.