How can you use the TS parameters to compare 2 different drivers to see in wich way they differ or compare. Which are the most important parameters exept ofcourse diameter, resistance, x-max etc. for use in horn loaded cabinets. And do the same rules apply for direct radiators like the sla's or mtm part of the david?
Gregory East wrote:Not familiar with Pmax. The rest of the specs look quite ok but if Pmax is Pe there could be trouble from heat rather than mechanical limit.
This was a copy from the thielesmall.com database. Pmax in this case means max power output inWatt, which ofcourse is not really important in this case.
but xmax, Fs & vd can be seen as most important for woofers inside horns, with rising responce for mid woofers or am i jumping to conclusions here.
Response of a driver in a horn enclosure gets really weird once the parameters start changing. It might be that different combination of certain parameters give you relatively the same response, but the horn play a HUGE part on this. Direct radiating designs are more simple to predict the response without having to model the speaker. However, for horns, it's best to simply model the horn and then start playing with the drivers to see which one gives what.
Hornresp is completely free and it's the best tool to show what's happening in a horn. Of course, all this is for theory as you specified. If you need to choose a driver for the actual build then simply compare the t/s specs of different drivers and choose the one that is most similar to intended driver.
