Projection engineering (Jan-Dec 1931)

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and an extraordinary announcement by RACON These past several months have seen marked improvement in the design of sound systems to meet the many new applications in which they have been employed. It is only fitting that RACON, being the foremost manufacturer of air-column speakers and dynamic units should be the first speaker manufacturer to announce new developments of outstanding merit. RACON introduces 5 entirely new types of electro-dynamic speaker units. More powerful than earlier types, these RACON UNITS allow a wider frequency response, particularly on high frequencies. They further increase the high degree of natural tone so characteristic of all RACON AIR-COLUMN HORN SPEAKERS AND DYNAMIC UNITS. That production costs have been reduced to such extent as to allow a new and improved line of speaker units at radically lower prices than heretofore, is added proof of RACON'S LEADERSHIP. RACON HORNS AND UNITS ARE BEST FOR EVERY TYPE OF SOUND INSTALLATION Theatres Churches Schools Hotels Airports Parks have learned that RACON HORNS and UNITS are better RACON HORNS AND UNITS ARE • COVERED BY U. S. PATENTS NOS. A 1,507,711 1,501,032 1,577,270 73.217 73,218 W 1,722,448 1,711,514 1,781,489 1,832,608 WHY NOT TELL US YOUR PROBLEM. Full particulars regarding this outstanding line of RACON UNITS are now available. + Means our New Line oj Units ... — Means the price reduction RACON ELECTRIC CO., Inc. FACTORIES 18-24 WASHINGTON PLACE TORONTO, CANADA NEW YORK CITY LONDON, ENGLAND RACON NEW "BABY" UNIT INTRODUCES NEW "JUNIOR" UNIT AN ENTIRELY NEW "SUPER GIANT" NEW LINE OF NEW "MASTER" UNIT DYNAMIC NEW "GIANT" UNIT SPEAKER UNITS