I have a Spectrum 2-8-0 w/DCC and Sound. I love it with the exception of 1 issue that has develeoped. The problem that it appears to have is that the drive belt is slipping. It occurs after running for a minute or so even with a light consist load of 8 cars.
I suspect it is belt slippage as the syncronizing of the sound does not match the loco speed which is empahsised when going up grade (loco slows down but sound sync stays the same and also at "full throttle" there is excess motor noise with lower top speed than normal.
It is fairly new and has no more that 6 hours total running time.
The loco is still under warranty so I plan to return for repair but I was wondering if anyone else has experienced this and if this maybe a weakness in the design.

Jim