Fostex BIB

[Greendan]

I've spent hours reading various posts on this forum and finally decided to post for the first time myself.
I'm quite intent on making a pair of BIB's due to their relative ease of build and cost, not to mention MJK's article on the FE167E / BIB combo.
Before I order up any drivers though, I just thought I would ask which driver is best - the FE166E, FE167E or FE168Esigma ?
The BIB's would be tight in the room corners and listened to off-axis as a general rule. Music listened to is jazz,classical,pop,rock etc, but not particularly loudly.
Is there a general consensus on these drivers ?

 

[Scottmoose]

'Best' is an entirely subjective term, but the Sigma is Fostex's range-topper in that size, & is a very nice unit for what it is, so if you can afford it, that'd be the one to go for.

 

[Greendan]

Thanks Scottmoose.
Once I've burnt in the drivers, I'll no doubt find they are a bit off spec.
The BIB's appear to be fairly forgiving, so is it best to alter the line length and retain the cross-sectional area to account for the variation in driver parameters ?

 

[Scottmoose]

More the reverse.