Subwoofers

Understanding Closed, Vented and Band-pass Subwoofer Designs

The history of the subwoofer is inextricably linked with the evolution of the full-range loudspeaker. In the mid-1950s, various manufacturers of hi-fi loudspeakers began to introduce compact, closed-box enclosures that featured long-throw woofers, and in the early 1970s a talented engineer working at Jensen, named James Novak, developed the equations describing a bass reflex (or … Read More

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

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

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