mz..if 20watts will never travel 100ft.

If it doesn't travel 100 ft, then why are you assuming its speed is zero?
Is the speed of light shining off your bald head zero just because it's not
reaching Europe?

and 500watts will.you say more
watts doesnt effect speed..

500 watts from your house in Watts won't be heard in Greenland. Does that
mean its speed is zero?

hmmmmmm
well i'm getting rid of my 1000s of watts of amps and buying just
50-100watts....since it will be heard 100ft away the same as
1000watts.

Listen, imbecile. No one said there's not a difference in sound. The fact
that you keep bringing this up demonstrates that you're dumb as a rock. The
question here is the SPEED OF SOUND WAVE PROPAGATION.

as to what you said....
i wish i met yall be4 i bought all these amps.....
also guess your 100watts will be heard fine 1000ft away..since power
doesnt effect speed...

If you're asking if 100 watts delivered to a speaker can be heard 1000 ft
away, the answer is yes. It depends of course on the frequency,
directionality, and ambient conditions.