Hello,
Don't know if this is news to you-all, but I was just at the Oklahoma City Train Show (yes I am far from home), and I visited the Digitrax booth. They now have a decoder for N scale (and HO) with down-loadable sound. I talked to the representative and he said they announced it two weeks ago. None of the brochures covered it, but if I remember the price listed was $60. It comes with a large speaker HO type. Talked to the guy, he said their plan was that you just remove that speaker and attach the speaker of your choice. The list price for the sound loader was $100, I believe this is their standard sound loading device.
I did not pick up the part number, but it was all one decoder-sound unit with a capacitor and speaker hanging off of it, and all the wires to connect to the loco motor etc. I could tell you more if they had a brochure to hand out.
It did not occur to me but I could have photographed it too, oh well. If it keeps going I guess more details should be printed real soon.
Thought I would let you know.
Charles t-o-b
PS, my first DCC install may be a sound unit in one of my Bachmann 2-8-0's
PPS, practicing posting to eBay's crazy oh so easy to use, try to find new topic button system.