Mattoon said:I have an MRC decoder in an SD 40-2. The speaker is mounted to the top of the cab roof. It has a small connector so the shell can be seperated from the chassis if need be. I think it sounds pretty good. Not as good as a BLI, but great for the price.
I am not sure how many decoders with sound I would want though. If I am not running this loco, it gets annoying after a while, LOL.