taming the high range in loudspeakers

[pamaz67]

I've tried to search a bit without any luck, and I can't remember where it is.
A few months back somebody was suggesting to place a simple inductor in series with a speaker just to tame the high range. Can anybody point me to that thread pls?
Thanks for the help.

Paolo

[erwin_ve]

I don' t know the exact thread, but it was Claus aka bluesfendermanblues who was talking about it.

[ER]

Search online for a first-order speaker crossover calculator for low end (-6 dB per octave) put in the frequency knee and the speaker impedance and it will tell you the inductance you need. If there is one particular spike that's annoying you try a notch filter or physical dampening of the speaker or alteration at that frequency. Frequency is simply wavelength, so for highs you're looking in the area of the voice-coil/dustcap, or beaming problems from speaker/cabinet design.

The easiest thing to do is find a speaker you like with out changing it, and make sure it's actually the speaker that's the problem and not the amp with some basic troubleshooting buy trying it with different amps.

What speaker are you working with, and what do you want to change about it?

[Structo]

Here ya go!

https://tubeamparchive.com/viewtopic.ph ... highlight=

[pamaz67]

many many thanks to Structo and all of you guys!

[pamaz67]

Sorry ER I didn't answer you.
BTW, i konw quite well xover and that kind of stuff. I also have a few pieces of software for xover calculation.
There are also other factors related to the dimension of the baffle that can be interesting to evaluate ( the so called baffle step compensation)
So a first order fiter is not a big issue
Simply I was curious to read which value was suggested fo r the test.
And if I will be able to save a little spare time ( you know i'm father of 3...) i would like to evaluate some more complicated networks to be applied to the evm 12 l as IMHO is the more "complete" sounding speaker.