Do you have any experience with the Kato 'Sound Box' and / or 'ACS-64' Electric loco? The Kato videos of them make it seem really cool but they are about 4 years old. I'm sure the 10yo will like the horn. DCC: Yes, I know there are a lot of wonderful sound cards for DCC units but I do not have the visual accuity to retrofit my fleet. So? Feedback? Any info on how they run with the Kato ACS-64 or FEF 4-8-4 Notes: ACS-64s run past my window on the PVD, (Boston to Providence), line. I'd love to add them to my bullet train layout. Sound would just be a bonus. I have the Kato FEF 4-8-4. Adding sound would be wondrous. Thanks everyone!