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Stop Blindly Recommending Linkwitz-Riley Filters

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Linkwitz-Riley filters may sum well electrically, but not acoustically. For this reason I think their best function is as targets, but not a generic crossover filter design recommendation. For example: 👎 "Using LR24 filters will give you a flat acoustic frequency response through the crossover region." 👍 "Using LR24 targets will give you a flat acoustic frequency response through the crossover region." Then, choose whatever filters are appropriate to hit the … [Read more...]

How to Set Subwoofer Delay (7 top brands agree)

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You don't need expensive equipment or a PhD to set subwoofer delay time. In fact, all you need is: Sound too easy? Consider that top brands like L-Acoustics, d&b audiotechnik, JBL, Coda Audio, RCF, Funktion-One and dB Technologies all recommend the same subwoofer phase alignment method. For the rest of the article I'll refer to this as the relative/absolute method. These manufacturers all agree that: Manufacturers differ on where to get the pre-alignment delay values and … [Read more...]

For the Best Concert Sound, Keep the LF Reverb Time Low

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I initially intended to write a review of this book, but that part is easy. It's great! Aside from one minor complaint, I loved it and I think everyone should read it. Instead, I'd like to share some of my takeaways to peak your interest and hopefully start a discussion. #1 - LF is hard to control Loud bass is important to rock concerts. It's also very difficult to control and requires the largest share of electric amplification energy. Bass is so hard to control because the … [Read more...]