Are you sure the noise came through the microphones? I've had loud
experiences with my lightspeeds when I didn't get a good seal from the ear
cups.

You might repeat the experiment with the squelch turned all the way up -
i.e. to where it squelches virtually everything. If the sound level is
reasonable, that would confirm a mic noise problem.

Alternately, if it is still loud, you have a noise cancelling problem.

KB

"Jim Burns" wrote in message
...
I recently purchased 2 sets of Lightspeed 20-3G headsets and handed down
our
20xl's to my son and daughter.

Last weekend was our first trip with wearing the 20-3Gs. With the radios,
intercom and headset volume levels all set at a comfortable conversation
level, the takeoffs turned out to be absolutely deafening. The reverb
from
the props and/or feedback through the mic or ANR was much much louder than
the older 20xls. Conversation would have been totally impossible during
the
take off roll. My wife said that they didn't get any better even when she
pressed the ear cups to her head with her hands. Once the props were
pulled
back to 2400rpms, everything returned to a comfortable level.

A recent thread about mic gain got me wondering if that might be the cause
of our problem. Has anybody had a similar experience?

Thanks,
Jim