dual opposed

I want a MEDIUM sized (not compact but medium sized), "dual opposed" subwoofer that is "fairly efficient" and can go low, and wont cost as much good used car for 2 subs. From what I understand, the Rythmik G22 is a unicorn in that regard, but I am sad to find out it is discontinued. The...

I've been trying many different desktop speakers and am not satisfied with any of them, so I came up with an unusual design. Attached is a crude diagram, not at all to scale, but it illustrates the idea. I want to achieve the following - flat response from at least 40hz to 17khz with little...

Hello, I built zaph audio zrt about 10 years ago and now think of upgrading them, both from the aestetical (current painting is average) and performance point of view. I would like to share and have your opinion about the upgrade. What I'm planning to do is to make the column as two separates...