DCC speaker principles | Getting the sound out | Model Railroad Hobbyist

http://mrhmag.com - MRH DCC columnist Bruce Petrarca provides some amazing insights into how speakers work in a model railroading context, laying the ground work for his Digital Command Control column in the August issue on how to do sound decoder installation in a way that's easy and effective. Part of the content in the August issue of Model Railroad Hobbyist ezine.

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