Any issues with having the same drivers sharing a sealed enclosure airspace, but crossed over at different frequencies as in a 2.5 way system?
Thanks!
Chris
Thanks!
Chris
Thank you all.
What about in a 3-way configuration with the woofers sharing the same sealed airspace as an open backed midrange?
What about in a 3-way configuration with the woofers sharing the same sealed airspace as an open backed midrange?
This is one of those topics for which the answer is "it depends" if you really answer the OP's question, as it has been posed. For example, on the web page from Zaph the two woofers use a first order shelving filter. This will result in a low phase difference between the two drivers, maybe 45 degrees at most, and with one being rolled off it works fine. If that is all you plan to do there is no need to read further.
If on the other hand you chose to use a higher order filter (above second order), the additional phase shift might cause some undesirable effects because the phase rotation will be beyond 90 degrees before there is significant rolloff. So in general this might not work well in some cases. Choose wisely. It should not be too difficult to model this in a crossover simulator so you can test out scenarios for your particular project.
If on the other hand you chose to use a higher order filter (above second order), the additional phase shift might cause some undesirable effects because the phase rotation will be beyond 90 degrees before there is significant rolloff. So in general this might not work well in some cases. Choose wisely. It should not be too difficult to model this in a crossover simulator so you can test out scenarios for your particular project.
They both have to work in the same region on the bottom of their freq. range, or else transducer that works as woofer will be using mid as its PR.
So 2,5W ok, 3W wrong.
So 2,5W ok, 3W wrong.
Welcome Chris,
If you do a search on username Surtsey you will find quite a lot of discussion on your question. (He has asked quite a few questions on this very subject)
Regards,
Rob.
If you do a search on username Surtsey you will find quite a lot of discussion on your question. (He has asked quite a few questions on this very subject)
Regards,
Rob.
I perhaps know a way to actually simulate this kind of situations, even for different drivers in one sealed enclosure.
Somebody still interested in this subject ?