After it was discovered the producers of the convention could not afford the system, Klopfer designed a logo for Polk Audio and attached it to the speakers.

The Monitor 12 was quite capable for its day, having bass response to 18 Hz, a free-air mounted tweeter, and 500-watt RMS power handling.

[4] In early 2015, most or all of Polk's non-technical jobs were moved from the Baltimore office to the headquarters of the parent company, Sound United, in Carlsbad, California.

At that time, Polk's engineers joined with those of Definitive Technology, and the Audio and Acoustics Research and Development [ARAD] center was established in Owings Mills.

ARAD remains the center for most loudspeaker development by Sound United, which also owns the brands Bowers & Wilkins, Classé, Definitive Technology, Denon, and Marantz.