🚀 go-pugleaf

In article <5775@gold.gvg.tek.com> chrisc@gold.gvg.tek.com (Chris Christensen) writes:
>In article <1992Dec29.134904.350@ncrcae.ColumbiaSC.NCR.COM> 
>chris@lightnin.Columbia.NCR.COM writes:
>
>>  Can someone enlighten me as to what is meant by "Headroom"?  Technical
>>descriptions as well as figurative descriptions would be helpful.

>Keep in mind that with crest factors of 12-20 dB audio can eat up
>power and you won't know it until you are out of power!

>There has been a lot of discussion on "do I really need a 200 watt amp"
>I have seen responses like " a (""better sounding") 100 watt amp can
>sound better than a 200 watt amp.

>All of this is true but for different reasons.  My basic observation
>is that lotsa a power is good.  Caculate it for yourself!  How much
>power does it take to reproduce the 12-20 dB crest factor of an audio
>signal using a speaker who's midband output is 90 dB, 1 watt, 1 meter?
>What is the power rating requirement for the speaker that is to
>produce this sound?  For this problem only, ignore the thermal
>compression of the speaker!

When you do the math properly, it sometimes comes out to be
cheaper to buy more efficient speakers than buy the amount of
power you need.   

>Gee I sure got off the topic!

No more than I normally do :-)


-- 
Bill Vermillion - bill@bilver.oau.org  bill@bilver.uucp
                - ..!{peora|tous|tarpit}!bilver!bill