[Vintage-Audio] Re Speaker Performance

[Bob]

I have my 15 inchers crossing over at 170Hz to the 8 inch
mids in the front room. To push then up to 800 is asking for
a lot of cone stiffness..The cone size cant handle the
motion and stops being a piston and the resulting standing
wave makes for phase distortion and the resulting lack of
"crispness". Gotta have a 3 way with big woofers.

WBob

Phil Lefever wrote:
> 
> At 05:41 PM 8/15/02, you wrote:
> >Gee, I see some new physics coming in here...what is the
> >concept of "fast" with a woofer? How do you get or need or
> >how does an instrument make "fast" at 50Hz?
> 
> I was going to say something like this too ;)
> 
> The transient response of a low frequency driver doesn't
> matter, as long as it is limited to ONLY handling the
> low frequencies. On the other hand if you use a 15"
> driver up to say 800 cps there may be a perceived lack
> of "crispness" or "sharpness" due to the inertia of the
> cone. This is why I use my 15" driver only below 75 cps
> where the driver is plenty "fast". The smaller mid bass
> drivers allow things like a kick drum to sound crisp.
> 
> Regards,
> 
> Phil
> ------------------------------------------------------------------------------
> Phil Lefever - KB�NES                   Twin Cities Repeater Club
> kb0nes@tcrc.org                 Tech Team Co-Chairman
> http://www.tcrc.org                     53.37 147.21 224.54 444.30
> 
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