Which would be better 1 lg volume or 2 sm volumes in one....?
The driver and PR will be on the same axis, driver ft and PR rear.
It looks almost the same either way. Bumping up the mass to 600 will get me lower and allow for more extension, but thats alot of weight on the 265g units I have to work with....and yes I do agree that any of these designs will need a little kick in the 20 hz range.
What could I expect of room gain to aid in the dip?
The driver and PR will be on the same axis, driver ft and PR rear.
It looks almost the same either way. Bumping up the mass to 600 will get me lower and allow for more extension, but thats alot of weight on the 265g units I have to work with....and yes I do agree that any of these designs will need a little kick in the 20 hz range.
What could I expect of room gain to aid in the dip?
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Why you don't like my ideas?
They are good, check the frequency response in WinISD.
The PRs are too light to be used with this woofer it seems to get any reasonable performance at 20 Hz.
If it was the 400g version, it would probably be different.
You lose more than 10 dB of efficiency by using these PRs... that's enormous!
Here are both of my ideas :
They are good, check the frequency response in WinISD.
The PRs are too light to be used with this woofer it seems to get any reasonable performance at 20 Hz.
If it was the 400g version, it would probably be different.
You lose more than 10 dB of efficiency by using these PRs... that's enormous!
Here are both of my ideas :
Attachments
Simon, I do thank you for your input.
Your design was similar to a foot stool/coffee table I had looked into as the size of the cab would work.
I figured the sub cabs I made should work "ok" and could be moved around as needed or gutted for another project.
I am still unsure if I should open the top and bottom chambers or keep the 2 smaller ones as the other than the "db" the graphs are very close. Running 4 of then in 1 room should give plenty of good ole SPL.....
Any advice on this would be helpful.
Funny thing is I ended up making a typical XLS sub after all........
Your design was similar to a foot stool/coffee table I had looked into as the size of the cab would work.
I figured the sub cabs I made should work "ok" and could be moved around as needed or gutted for another project.
I am still unsure if I should open the top and bottom chambers or keep the 2 smaller ones as the other than the "db" the graphs are very close. Running 4 of then in 1 room should give plenty of good ole SPL.....
Any advice on this would be helpful.
Funny thing is I ended up making a typical XLS sub after all........
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