CSS FR125S for center channel ?

[Landroval]

MCH, for a sealed box you can safely use anyting between 2,5-10 litres. Going up from 5 litres looks quite useless, it's just a bigger box. But yes, those will work. With 5 litres f3=95Hz, f6=75Hz.

 

[morbo]

OK Here's my take on the center channel. As I had no space limitations its ported, and of course I can seal the port for a very low Q aperiodic box. As you can see I have lots of space behind, so no worries about the port being enclosed. I cross at 100hz, and just FYI when I plug the port, excursion goes up a fair bit, to the point where I feel I should be a bit more careful about the volume. These drivers can take some serious punisment (ask anyone who was at the Toronto DIY meet), but I am by nature paranoid about 'blowing' expensive speakers.

 

[audiobomber]

FYI when I plug the port, excursion goes up a fair bit

Are you running it full-range, or crossed to the sub?

 

[morbo]

crossed to a sub, 100hz. That doesnt mean no material below 100hz gets to the driver, especially when you start getting generous with the volume. Also, its hard to tell from that picture, but there is about 1 foot of airspace behind the speaker.