MRC Tech 6 Power Pack and Sound Controller 2.0, for HO, N TT, Z and other DC scales
MRC TECH II 7000 gs Sound Generator | Toy Hobby | Suruga-ya.com
MRC 0001200 Tech 6 Hybrid DCC System For Sale -- Kingston Locomotive Works - Retailers of New and Used Model Train & Hobby Products in Kingston, Ontario, Canada
MRC AA555 Symphony 77 Sound Station EX/Box – Trainz
Sound Master 210 sound system Auction | Shane Albright Auctions
MRC MSR-9200 Sound Reception System | eBay
MRC Sound & Power 7000 DC Transformer w/ Sound System | eBay
MRC 1008 HO Sound System for DC Layouts Standard DC Sound Module Only – Trainz
MRC Soundstation 312 sound system plus American Flyer 48318 box car | Toys Trains and Other Old Stuff LLC