You will have noticed that in a large number of live events, sound engineers place subwoofers close together either on the floor, on the side of the stage, or at the top of the line-array rig. Are there any benefits in doing so, and what exactly happens? Before exploring the answer, let’s first recall some … Read More
Every so often, a new technology comes along that causes you to reconsider the concepts you knew and change the way you specify or design systems. A few years ago, QSC introduced a new amplifier platform of four-channel DSP power amplifiers featuring Flexible Amplifier Summing Technology™ (FAST). Today this technology can be found in PLD, … Read More
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
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
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
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
Both CP8 and CP12 powered loudspeakers feature two inputs. Input A is devoted to line level while input B is for Mic and Line levels. There is also a function called MIC BOOST, and when this button is engaged (and a microphone is connected) it affects input B turning it into a microphone (MIC) level … Read More
Have you ever wondered if subwoofers can be placed anywhere in a room, on a stage or below it? Have you ever experienced listening to a subwoofer that had no punch, impact and definition? In fact, the placement of a subwoofer in a room or a club, on stage or simply on the floor is … Read More
Lead by QSC experts, these small, interactive, online classrooms open up the mic to students to ask live questions, share your screen, interact with colleagues and deepen your QSC product knowledge. We are limiting the size of these webinars to encourage a more intimate learning experience. If a webinar is full, check back later as … Read More
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