Which is the quietest chain??

dieselgeezer Posts: 231
edited March 2011 in Road buying advice
I presently use a Shimano Ultegra CN 6600 10 speed chain with a Dura Ace 12-25 cassette & FSA 50 x 34 compact. Although the gears are perfectly meshed, the drivetrain is quite noisy in the 50 x 23, 21, 19 & 17. It quietens down as you get to the higher gears & the 34 ring gears are all quiet. The chain, cassette & rings are not unduly worn.
Is this merely a chain line issue or are some chains quieter than others.
Maybe this should have been under the Workshop section.
-- "I am but a spoke in the wheel of life" -- Ghandi