Bletchleyite
Veteran Member
The noisy 68 is hardly audible in the coaches whereas the engine is on a Voyager. The even bigger issue with DMUs is the vibrations from the engine and annoying transmission whines. I'm afraid it's not an enthusiast thing but pure fact that loco hauled stock is quieter and has a better environment and that is that. I've not been on any unit in any country that is quieter than loco hauled stock.
The interior of 80x (except Lumo's for some reason, due to the horrible electronic whine that is nowhere near as pronounced on others) is considerably quieter than the interior of Mk1 LHCS with the windows open, and you can barely tell if they're on diesel.
You don't want it too quiet, if it's completely silent then the noises made by others tend to annoy people instead.
