Background

I have 16 Soundtraxx equipped locomotives to which I have added TCS KA-1 Keep Alive modules.  I also have one TCS WOW Sound locomotive with a KA2.  All have worked great for six months on my Digitrax controlled layout, with 1 DCS100 and 2 DB150s controlling three power districts.  The controllers are all set to “N Scale” power.

I recently acquired some Peco code 100 switches to match the Atlas code 100 flex track that I had planned to replace my foolishly acquired sectional track.  

Having now been allowed more space, my plans have changed. The sectional tracks and horrible oval expanders switches will end up on a temporary sectional layout to try out operations and run trains, while I work on the track plan for the future shelf layout.

I have two diesel locos I would like to add sound to. An old atlas RS3 from the 80's and a spectrum GP 35. Both lack the space for an easy sound fix. If I switch to brushless motors would I be able to save enough space to gain the extra room required to add sound? Does any one have experience with this? What's a good source for brushless motors? Both run well, would I see much improvement with a switch to brushless? The models are HO scale. I have used brushless cordless tools and they work as well if not a little better than their brushed counterparts.

I'm not sure I'm understanding the Tam Valley Depot booster as 5 amps peak power 3 amps continuous.  It is advertised at the top of the page here at MRH as 5 amps but when I look at the advertised product I see 3 amps continuous.  Should it not be advertised as a 3 amp booster or am I missing something?