The contrasting personalities of BGM and FGM

I often get asked to explain the difference between background music (BGM) and foreground music (FGM). The best way to explain is to introduce my friends – the Geeyem brothers. Growing up Brian Geeyem (B. Gee-yem) is the first-born. (Ok, if you haven’t realized by now, these are not real people. Just go with it!) … Lire la suite

Throw This

The term “throw” is perhaps the biggest misnomer in the pro audio industry.  The reality is sound does not throw, but “propagates” through the air. The distance over which sound propagates and still remains intelligible basically depends on the ratio of acoustic signal-to-noise at the listener’s location. While many audio pedants (myself included) will cringe … Lire la suite

FAST (Flexible Amplifier Summing Technology)

Every so often a new technology paradigm comes along that causes you to forget everything you know, and eventually changes the way you specify or design systems. A few years ago, QSC introduced a new platform of four-channel DSP power amplifiers, available in three flavors – PLD Series for live sound, CXD Series for install … Lire la suite

Avoid the Dangers of Ladder Rage!

If you are unfamiliar with the term “ladder rage”, let’s discuss what this phenomenon is and how QSC AcousticDesign (AD) loudspeakers can eliminate that repetitive trudge up and down the ladder. Have you ever been on the top of a ladder struggling with torsion grills or struggling to line up speaker logos with the other installed … Lire la suite

Better Loudspeaker Design Is Pure Physics

Whether you like it or not, sound waves will always radiate spherically from a sound source (such as a loudspeaker). Don’t believe me? Try throwing a rectangular brick into a pond. Do you think the larger ripples will resolve into rectangles or circles? Audiovisual professionals have long used rectangular shaped horns as the go-to option … Lire la suite