Surround sound is everywhere: once only available for movies and concert DVDs, it’s now being broadcast nightly on our favorite TV shows. If you’ve been resisting switching to 5- or 7.1-channel surround sound because you didn’t know how you were going to fit the speakers into your room, take heart: it’s easier than ever to get the right sound right where you want it. Here’s a step-by-step guide to follow when you install surround speakers in your home.Log in
January 28, 2013
January 16, 2013
We’re stationed in the anechoic chamber again, looking at Axiom’s latest amplifiers, the ADA series. Axiom’s Engineer Andrew Welker takes us through a few of the inner workings of the ADA amplifier, and what sets them apart from the rest of the amps on the market today.
Andrew: Basically today I wanted to go over a couple of points about our ADA amplifier series that differentiates us with some of the Class D (sometimes called Switching Amplifiers) that are on the market. There’s a lot of them and they all tout the same sort of high efficiency, cool running, high-power-for-small-size features. We have all of those things, because this is a Class D-based amplifier.Log in
January 11, 2013
Axiom Engineer Andrew Welker continues with his description of how to design an in-wall loudspeakers to avoid any problems with reflections and diffractions1.
Andrew: Part two, in continuation of part one. A couple of important details. One, many in-wall speakers that you’ll see on the marketplace actually are sunk into the wall so that the drive units sit below where the drywall surface or the wallboard surface would be. That’s actually a very bad thing acoustically, because the wall edges that stick out past the drivers cause reflections and what’s called diffractions around the drive unit. So instead of getting a nice even spread and a spacious sound, you can get a very localized and closed-in sound, which sounds very unnatural.Log in
December 7, 2012
One question that several of you have asked pertains to designing an in-wall speaker: how does it differ from designing a regular speaker? What factors do you have to take into account when you’re engineering it?
I caught up with Andrew Welker in our anechoic chamber (this time we put the floor in so I could turn the camera around!) and asked him about his strategy.Log in