Originally Posted by Sangui
Did you model or consider lowering tune to ~12 hz? Is that viable for your model/tube length?
I am limited in sonotube size to 16 cu.ft MAX. I did take a look at a lower tune.
- For a 12Hz tune I would be taking a 6dB hit in the 20-30Hz range in order to drop the HPF from 16Hz to 10Hz. I thought this was too much to give up.
- For a 16Hz tune I would be taking a 2.5dB hit in the 20-30Hz range in order to drop the HPF from 16Hz to 14Hz. Is an overall loss in output above 20Hz worth 2Hz lower output?
That's a question I don't know the answer too because I am just bench racing right now by trying to optimize. I don't see myself listening at reference levels. I dont know if I should focus on SPL or range.
Originally Posted by buggers
The driver is always placed at the bottom of the tube with the port at the top of the tube. I believe he is referring to the orientation of the driver. Most of us face the driver down but of course you can do otherwise....
Typically yes, the driver is at the bottom of the tube. I wanted to install the subwoofer at the top of the tube. Function wise it wont make a different. I just don't want my kids throwing things down the port.
Is the raised center of gravity an issue while the subwoofer is in use, or a caution in case someone runs into it?
As for progress, I cut out the MDF circles this weekend. Next weekend I am hoping to cut the sonotube down to size and perhaps start making the cuts for the speakers and ports.