Re: current amplifiesr for speakers now "degraded"?



"Arny Krueger" <arnyk@xxxxxxxxxx> wrote in message
news:kbGdneqR_8luYq_VnZ2dnUVZ_rLinZ2d@xxxxxxxxxxxxxx
"Earl Kiosterud" <someone@xxxxxxxxxxx> wrote in message
5eBYj.2858$dh.1900@trnddc05">news:5eBYj.2858$dh.1900@trnddc05
"Arny Krueger" <arnyk@xxxxxxxxxx> wrote in message
news:9Kidndqq39BtS6_VnZ2dnUVZ_u-dnZ2d@xxxxxxxxxxxxxx


(1) Many speakers are maybe 1/4 as efficient as AR2s

(2) In the old days 95 dB was loud. These days 105 dB is not all that much
for many people.


10 dB louder is 40 times the power. Do the math: 40
times 20 watts is 800 watts.


For an increase of 10 dB, you need 10 times the power.

Agreed. See point 2 above.

Then see point 1, to see how I got to 40 times.

Hey Arny,

I failed to combine your 1/4 efficiency with your 10 dB difference. Now I see what you
mean.
--
Earl


.