I got the Bachmann Spectrum explorer set with a 2-8-0...what the difference in this 2-8-0... http://www.trainsetsonly.com/page/TSO/PROD/160-51302

There is no difference, except this loco is really expensive, a lot more than  what you would pay on ebay for the same loco.

the cheapest on ebay is 90.98

The set would have the cars and track but the other is a loco by its self.

I bought a Bachmann 2-8-0 w/ DCC for $40 including s&h from the favorite spot at auction (not buy it now).

I didn't see any at auction

can the ez command control sound if its already installed in the loco

It can control up to 8 sound effects, but you can't modify the sounds or variables. There may not be any 2-8-0's right now, but they are there periodically.

I don't recall the dvd that came with the ez command saying anything about controlling sound how does it work

Push the yellow function button and numbers 2-9 and sometimes 1 control sounds, when you have your dcc w/ sound loco selected.

cool and as always thanks again

Bachmann "Instructional" DVD's are about the most worthless items for instruction I have encountered.  The only thing worse are the printed instructions and parts diagrams.  I hope the Bacchman is reading this.

Chris

ditto on the parts diagrams