Ringing midrange

[JP Haggar]

How to tweek a crossover to suppress ringing tones in the 400 to 800 HZ. My speaker is a 3 way 2nd order xover at 250 and 2500 Hz. components are SS 2905/9500 Tweeter, Vifa PL 14 Mid and SS 8555-00 bass, I've tried to change the mid driver with focal W 4211 or SS Kevlar but it only made it worse , especially the voices and the higher piano notes . I'm a beginner really in need of advise . The software I use is Xover Pro !
Thanks
JP Haggar

 

[pinkmouse]

You need a frequency response plot to see the extent of the problem before you can design anything to sort it out.

 

[tinitus]

You can try and ad some resistors to paralel components in crossover - and I think you need an RC on bass

 

[lndm]

I looked at Xover Pro's web page and as far as I can tell, it does not incorporate the measured frequency response of the drivers. This is referred to as a 'feature'. In fact, this limitation (if I didn't misread the page) will not recognise cone breakup and as you're no doubt aware, cone breakup is a larger issue in crossover design.

 

[tinitus]

Looking at woofer - it does have cone break up like it was a metalcone

 

[tinitus]

Sorry to reply so fast again - you refer to ringing as being in the 400 to 800hz region - so I suspect you hear it on saxofone low midvoice and deeper strings on violins etc. - if so I am almost certain it is a crossover malfunktion - maybe phase problems - the lowest crossover point is very difficult to get right.

 

[lndm]

I have a hump at around 800Hz and I use an RLC string in parallel with the woofer. It works well but is difficult to design without crossover simulation as results are often touchy and/or unpredictable.

 

[JP Haggar]

Thanks guys , will certainly get something out of your advise ,
will keep you posted as to my results.
JP