I tried on a the Lightspeeds and the Telex headsets at the Aircraft Spruce store in Corona. They have a booth that blasts out sound frequencies that simulate interior aircraft noise. Anyways, I have to agree that they do attenuate the noise better.
I did not really like the construction of them, though and they really pinched my head hard. I guess my head is a little too fat. They both seem to be different in their construction and definitely in their materials than the DC's.
I do prefer the DC's overall from an appearance, materials, construction and durability standpoint. They are really well made pieces of hardware.
I guess it goes back to my days of when I was drooling over the Hughes 500D at the Dayton Airfair close to where I grew up when I was in 10th grade. I spent the entire afternoon by the helicopter, skipping most of the airshow. Finally, the demo pilot asked me where I lived and I told him Lima, Ohio. He said, well that's not too far of a diversion from where he was taking the helicopter that night. After getting permission from mom and dad I hung out until he shut down his display. He handed me a pair of sea-foam green DC's and off we went. He dropped me off in the field behind my house.
Then when I worked ground crew for a traveling helicopter aerial spraying operation, the pilot had a pair of DC's. We always wore helmets when we went up for rides, but he told me DC's were the best.
So I guess I'm just stuck on them. Besides, TC and
Thomas used them on Magnum PI too and I've always thought THAT was cool.
I was going to do some of the noise upgrades to my DC's using the Oregon Aero aftermarket headset quieting kit. Its supposed to drop the noise level another 5 DB or so. When I do, I'll let you all know what I think.