[dewar]

I'm just wondering how it would work to use a driver with a Qts of say 0.3. How much earlier would it roll of than a driver with Q = 0.7.

Was thinking of pulling drivers out of some old Dynaudios to have a listen in OB but I would have to buy more mdf first.

Given that I never listen at more than 80db, and provided I had a stout amp and DEQ, could I make any driver work in OB on a reasonable sized baffle? I would only have to get them flat down to 150hz as I have dipole subs to take over from there. I'

cheers

B.

[Dougl]

There are several good, inexpensive modeling program that will give you a very good answer.
I use xbaffle, but there are newer things available.
Rule of thumb is that .3 will start to roll off an octave or more above Fs, rather than at Fs.

HTH

Doug

[D OB G]

Hi dewar,

You might want to look at the thread "An OB design" which covers this issue (in amongst everything)!!

David