In the hobby industry, few companies have built such a bold and dynamic reputation for quality products and technical achievement as Model Rectifier Corporation. Over half a century ago, MRC began its march toward hobby product leadership by designing model railroad train controls with a level of realism and power previously unavailable. Today, MRC's Tech 6 & Tech 7 and Prodigy DCC lead a long list of MRC-designed train controls and sound systems respected and enjoyed by millions of model railroaders worldwide.