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...]
How to fight power alley using end-fire arrays
If you don't like the power alley that results from uncoupled subwoofer arrays and you do have six or more subs and enough real estate, you can try a compromised approach by aiming the left and right energy away from the center, improving isolation and lowering variance across the audience. I should make it clear that the result appears to reduce the power alley only in contrast to the rest of the audience. There is still interaction in the middle, it's just lower in level compared to … [Read more...]
How do you calculate cardioid subwoofer spacing? (gradient array)
First, the wrong way: forward maximum summation using geometric mean. ¼c/(√(F1 * F2)) It works, but it's not the most efficient method. After a discussion with Merlijn van Veen I learned to space the gradient subwoofer array (commonly known as a cardioid array) using arithmetic mean to match the region of greatest summation to the operating range. Now, the right way: forward maximum summation across the entire operating range. Find the center of the operating range using arithmetic … [Read more...]
Gradient vs Delta Subwoofer Array
How does a 6-element inverted gradient stack compare with an equally sized delta subwoofer array? I interviewed the creator of the Delta Array recently and he mentioned how similar it is to the gradient. I decided to see for myself. Coverage Shape Forward Aspect Ratio For a short demo of FAR please see One Simple Tool to Find the Right Size Speaker for Any Space. FAR = depth / widthdeltaFAR = 26 / (13*2) = 1gradientFAR = 26.15 / 23 = 1.14 30 / deltaFAR = 3030 / gradientFAR … [Read more...]
Rog and Nathan’s 5-hour Show about End-fire vs Gradient Arrays
' … [Read more...]