I've got an Atlas GP40-2(W) that I've been using as my test loco for the Ring system.  Up to now, I've been running it with the shell off and the loco module plugged into the existing pc board while sitting on top of the chassis.  I've determined there isn't enough room to comfortably house the loco module (1st generation LM-1), but removing the existing PC board provides a perfect spot for it.  What I need to do is then wire the harness directly to the components.  

Background Information:

I am primarily a model builder but recently became interested in DCC and sound decoders. So I am new to the current technologies. I recently purchased a Bachmann Sound Value S4 and NCE Power Cab. The engine runs great but I am a bit disappointed in the sound quality of the prime mover (There is not enough bass). I was planning on adding a full-functioning Soundtraxx but do not want to invest more money in the loco if the sound quality does not improve. 

Question:

When I introduced the idea of Dual Dissimilar Speakers back in 2006 it fell on deaf ears.

This really works, one speaker is full range say 220-20000Kz and the other has a middle range of about 550-6000Kz which gives a "woofer" sound:

I did the HO Bachmann Decapod before Bachmann offered them. I have a "what I did" at:

To compliment my Greenwich & Johnsonville RS3, I'm working on a G&J caboose.

http://www.rr-fallenflags.org/misc-g/gj35823am.jpg

While the prototype is wood, I'm using a modified Atlas TM caboose as a reasonable stand in.

Nick