Sonosub build (16") 15.5" ID tube, SS12-22, 15 Hz, replacing an SB-1000

[Hdale85]

I've been running an SVS SB-1000 for a while and I've finally hit the end of what it can do. It's a good little sub and I have no complaints about it for what it is — sealed 12" in about a cubic foot, 300 W, published at 24-260 Hz ±3 dB. But I keep noticing the bottom octave isn't there, and...

[Scareurpasenger]

https://www.homedepot.com/p/Henry-R-...3445/330252223

[Hdale85]

I've been working on a loudspeaker design tool for my own use for a while now. It covers enclosures, crossovers, diffraction, measurement import, and so on. I mostly started it because I was tired of moving numbers between three different programs and a spreadsheet just to answer one question.
...

[DaveFred]

Is there any inherent reason a pair of 6.5–7" midwoofers in a conventional isobaric arrangement can't be run cleanly to around 2 kHz?

Assume both drivers individually work well to 2 kHz. I am specifically wondering whether the isobaric arrangement itself — trapped air between the...

[Alaric]

I'm cobbling together a power supply to test an HP Desktop All-In-One. I picked up a tip (7.4 mm x 5 mm with a wire center probe) I don't have the original PS, so can anyone tell me which contacts are supposed to be +DCV and which is -DCV? The PS I'm using doesn't have a third lead, so it will have...