I picked up 2 Atlas GP38-2 in WSOR livery for my N scale layout, at the NMRABR convention there was a huge N scale modular set up and all the locos on the modules had sound and i was really impressed with how well these sounded given the space issues within N scale models for speakers and chips.

I chose to fit digitrax SDN144A0 decoders and speakers, the atlas models need full dissassembly and then the DC circuit board is removed and the chip & speaker is fitted. A little bit of filing is required to the rear light fixture to get the body back on the chassis but after the first one i did the second in under an hour. I have just one more locomotive to Chip and then thats the roster complete for my layout. A rewarding 2 hours and some of the least painful DCC installs I have ever done.