According to this admittedly very anti-Cirrus website, an SR22 is seven
times louder than a C-182:


Peter

Interesting PDF but basically bull**** put out by a Cessna sales rep trying to
make some sales.
Being that it contrasts a Turbo Skylane with a Cirrus SR22 & gives 101 reasons
why the Cessna is a better airplane ( & it probably is for some people), the
facts are that 2003 sales are Cessna 182T = 47, while the Cirrus SR22 = 355.
Obviously, a lot of purchasers either didn't read the referenced PDF or else
took it for what it was

John