Meyer Sound ULTRA-X40 Compact Point Source LoudspeakerMeyer Sounds ULTRA X40 design continue the tradition of the highly successful UPA loudspeakersso versatile they have been a universal standard in almost every application for over 35 years. From touring performances to theme parks, worship venues to theater shows, and lecture halls to large scale concerts, Meyer Sound technology has delivered exceptional fidelity with high power, low distortion, and uniformly predictable behavior.