AV Rental / Presentation

What does Subwoofers Mutual Coupling Mean

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

Heard about QSC FAST Power Amplifiers

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

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

CP Series Clever Preset Features

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

How to Correctly Place a Subwoofer in a Room

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