I have plans modify a pair of these including replacing the woofer with a different bass solution and then using an active DSP crossover for the bass / mid crossover at 180 hz, but leaving the mid / tweeter as passive.
I own a pair of the formidable Aurasound NS15 992-4A woofers and one option would be to put them in a sealed cabinet. However given the rest of the speaker is dipole, I’m wondering about putting them in an H or U frame. They have incredible Xmax and I could obviously EQ them with DSP. I also already own a very powerful amp to drive them. I’d welcome comments on these options.
I own a pair of the formidable Aurasound NS15 992-4A woofers and one option would be to put them in a sealed cabinet. However given the rest of the speaker is dipole, I’m wondering about putting them in an H or U frame. They have incredible Xmax and I could obviously EQ them with DSP. I also already own a very powerful amp to drive them. I’d welcome comments on these options.
The primary question for a dipole is typically how low and how loud you want to play. This spreadsheet will help you figure out how much output you can get from your single 15 inch driver in whatever size baffle you think you can tolerate.
https://www.linkwitzlab.com/spl_max1.xls
If you use H or U frames, you'll also have to watch the cavity resonance created by that configuration, since you are running up a bit in frequency to cross to the planar.
Another question is whether the Auras are mechanically quiet at high excursion. Some woofers are not, but I don't know about yours.
https://www.linkwitzlab.com/spl_max1.xls
If you use H or U frames, you'll also have to watch the cavity resonance created by that configuration, since you are running up a bit in frequency to cross to the planar.
Another question is whether the Auras are mechanically quiet at high excursion. Some woofers are not, but I don't know about yours.