cones in baskets in...

[jayhawk785]

Just wondering if there is any difference in having the cones faced inward (to manifold) or having the baskets inside the manifold, and cones on the attic side. I have limited space to work with on the attic side (near roof line) so I'm hoping to install these baskets in.

My last one i had space on all four sides, so I just made it square with cones facing in.

right now my plan for this space, is to use a longer box, with two subs on the outside, and two on the top all baskets inside the manifold.

any recommendations appreciated! (4 fi ib18s)

[ThomasW]

Hi,

There's no audible difference between subs facing in or out.

IMO the FI drivers are still the best deal out there provided they're in the budget.

[REK]

At small signal levels, there is no difference in sound cones facing in or out. At long excursions, if the Bl vs. X is not symmetrical about the rest point of the cone, there will be second harmonics generated at loud levels. A demonstration in youtube.com, www.youtube.com/watch?v=78s7CkKoN3E
shows David Clark measuring cone motion and output harmonics in my 4 Ficaraudio IB18 installation, shown in www.youtube.com/watch?v=pPoblqaqhHg
I have two innies and two outies, which cancels second harmonic distortion. The DLC video measures very little 2nd harmonic output, like ~3%, even at very high output levels and very low frequencies. The only thing is managing wire routing ...