I was thinking about what might make an interesting project, something which could reach pretty low in a small box, and I came up with this:
A W3-1876 in a 1.4l ported box:
https://www.parts-express.com/Tang-B...909?quantity=1
Crossing over to a TEBM35 at 200~500Hz, depending on what sounds best:
https://www.parts-express.com/Tecton...216?quantity=1
Erin's review of that driver, if you haven't seen it:
https://www.erinsaudiocorner.com/dri...re-bmr-driver/
Here's a WinISD model with both enclosures shown:

Granted this won't go super loud but I'm thinking that's fine for near field use, and it should get very close to 40Hz. I realize chuffing is probably a major risk here, but with the low cross over frequency, I should be able to use a pretty large coiled/folded port without too much risk of pipe resonances in the port. Total air volume will be ~2l, including a 25mm diameter x 45cm port, and ~400ml for the mid-tweeter.
What do you think? Are there better ways to invest 2 liters of my office space?
A W3-1876 in a 1.4l ported box:
https://www.parts-express.com/Tang-B...909?quantity=1
Crossing over to a TEBM35 at 200~500Hz, depending on what sounds best:
https://www.parts-express.com/Tecton...216?quantity=1
Erin's review of that driver, if you haven't seen it:
https://www.erinsaudiocorner.com/dri...re-bmr-driver/
Here's a WinISD model with both enclosures shown:
Granted this won't go super loud but I'm thinking that's fine for near field use, and it should get very close to 40Hz. I realize chuffing is probably a major risk here, but with the low cross over frequency, I should be able to use a pretty large coiled/folded port without too much risk of pipe resonances in the port. Total air volume will be ~2l, including a 25mm diameter x 45cm port, and ~400ml for the mid-tweeter.
What do you think? Are there better ways to invest 2 liters of my office space?
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