K.2 Series

What is Comb Filtering and how to avoid it

Have you ever had an experience at a live event, like a concert or a show, where the sound seemed thin, lacking in punch and dynamics, or with a disturbing phasing effect as you moved around? If the sound system was comprised of a number of loudspeakers either stacked or placed side by side, or … Read More

Auditory Masking and its Effect on our Perception of Sound

What we hear is the complex combination of sound sources and their inherent audio characteristics interacting with the surrounding environment (in a room or outdoor), being decoded by our ears and brain. A number of loudspeakers and room-related topics have already been discussed in previous blogs (‘How to Best Setup Your Loudspeakers in Your Home … Read More

How to Understand All Those Loudspeaker Specs

Loudspeakers can be described and specified in a number of different ways, making a buying decision more complicated than it needs to be. Therefore, having some understanding of the jargon used to specify loudspeakers is essential to make sure the product you are buying is the right one for your needs. For passive loudspeakers, the … Read More

How to Setup Delayed Loudspeakers

In a large room or outdoor, there may be the need to set up additional loudspeakers relatively far away from the main stage or event in order to provide proper sound coverage for the entire audience. When these distant loudspeakers, also called satellite or delayed units, are properly time-aligned with the main stage loudspeakers, the … Read More

KS Series Crossover Settings – Do and Don’t

All three KS Series Active Subwoofers feature powerful DSP, which allow you to adjust a number of useful parameters. Among these is the crossover frequency (low-pass). Now, to perfectly match your KS active subwoofer with your top active loudspeakers, you need to choose a suitable crossover frequency (80 or 100 Hz) – and apply the … Read More

How many Active Loudspeakers can you Daisy-Chain

In many AV rental or fixed installation applications, there may be the need to set up a number of loudspeakers that will all play the same audio content. The simplest way to implement this is to daisy-chain a number of active loudspeakers together. QSC active loudspeakers feature two different kinds of outputs. First, QSC K.2, … Read More

Why and How to correctly use Floor Monitor Presets

Sound Radiation from the Floor Let’s start by recalling some fundamentals in the physics of sound. First, we should remember what ‘radiation space’ means: it is the volume into which a loudspeaker is radiating sound. Now, at low frequency (typically below 200 Hz), where the sound radiation is omnidirectional, the sound level increases when hard … Read More