The EZ-Track connector wires come in several types, all with the EZ-Track connector at one end. One type has the phono type plug on one end, another has spade type connectors that are made to slide under screw connectors and still another has just bare wire ends. Can you use these to connect to the track with your DCC system? Absolutely! Do you need to run heavy 14 gauge wires along your track to run feeders from? No. You just need a type wire that's a better conductor that nickle-silver. I used all nickle silver EZ-Track on my layout and I have over 130' feet of track. Unless you're going to be running a dozen or so sound engines all at once you should be able to run a good quality track wire under the EZ-Track sections and have it plug into a terminal section every 10 to 20 feet. For electrical purposes you can solder the rail joiners to insure that corrosion won't break the contact where the rails meet.
Dr. Frankendiesel aka Scott Running BearSpace Mouse for president!15 year veteran fire fighterCollector of Apple //e'sRunning Bear EnterprisesHistory Channel Club life member.beatus homo qui invenit sapientiam