Gene,
Thank you very much for the info. I have been using the A2, I'll switch to the E2. My locos are relatively new (1948-49) so the bells are probably in pretty good shape. I have to turn down the volume though, or they drive me nuts!
The DCC sound install in my RS-2 #24 is my 10th. I have 10 more to do if I live that long <g>. The next one I am working on is RS-2 #27. These S scale RS-2's are "Alco Models" imports from the early 1980's. I have to replace the entire driveline in them as the pot metal gear towers are swelled, distorted and crumbling! The hardest part though, is cramming all the wires in without interfering with the drive.