[sdiy] Harmonic bandwidth

[ChristianH]

Did you feed the speaker with a unipolar Square?
That would contain an excessive CD amout (depending on the level).
Speakers do hate that. They may even decide not to talk to you anymore
for that. 
Yep - them speakers can be picky, if you ask me. Almost like a woman...

Chris



On Thu, 10 Jan 2008 12:04:33 -0600 "Tim Daugard"
<daugard at sprintmail.com> wrote:

> > I don't know what happens when you drive a speaker with a square wave
> > with lots of high order harmonics. I imagine it must filter the
> > harmonics that are excessively higher than the frequency response of the
> 
> The speaker coil melts - I did this with a speaker and an amplifier with a reasonable
> level of power. AFTER I did that, I added an output filter to my amplifier driver module
> to ensure I didn't destroy any more speakers with harmonics or signals I couldn't hear.
> 
> Tim Daugard
> AG4GZ 30.4078N 86.6227W Alt: 12 feet above MSL
> http://home.sprintmail.com/~daugard/synth.htm
> http://home.earthlink.net/~synthfred/h_toctop.htm (Fred's online edition)