What's wrong Clifford, don't like that "Box-O-Rox" sound
I replaced my old 2-8-0 Locosound with PS2 and she sounds way better.
My RS3 with Locosound didn't sound so bad actually, but since then I've installed the ERR Cruise Commander and Railsounds Commanders and have retired both Locosounds electronics to the parts bin.
Oh...no I don't know how to cut out the chuff sound, maybe gunrunnerjohn or GGG will lend assistance soon.