I am ready to do my center channel for my system and would appreciate any and ALL feed back

I have built my system based on music listening, not for movies or sports which I do some but music is #1! Think concert DVDs and standard 2 channel CDs. Southern rock, blues, classic rock, pop, jazz, some new age

I have a 7.2 system using 250ti w/CC TIBQ XO as my mains, 120ti for the surrounds, and a b460 and Velodyne 1200r for subs. I will biamp the 250s w/2 Perreaux 6000b (300 per channel) the center has a Perreaux 3000b (180 a channel or 400 bridged).The surrounds are fed by the Sony STR-da9000 receiver(130 -200 depending on which manual you read ) The b460 has an Adcom gfa555 bridged (600) and I have a Velodyne SMS1 to control the subs

I have thought of 2 108 woofers on the outside and a 44ti and 104 stacked in the center. It would look like an EC35. I have all the drivers. For XO I have a 120ti, a 250ti and my 1st choice 250tibq XO to work with. I don’t mind externally mounting the XO if needed

I thought either a 4 or 3 way depending on what makes sense.

1) 250tibq. 4 way speaker crossing the 108 at different points to match the XO. 1 would cross at 350 and the other at 1.2k. Additionally using this XO
a) I can biamp. Very strong preference to biamp
b) Copy the CC on my own and exact match to the 250s

2) Stock 250 XO. 4 way don’t see why I would use this over the TIBQ

3) 120ti XO. This was suggested by 1 of our members. Use this at a 3 way, change the XO by changing the LF cap/inductor to allow 4 ohm use ( Multiply the cap value by 1.414 and divide the inductor value by 1.414 ) and CC this set up

It has been recommended to build separate sealed enclosures for each woofer of about 1 cu ft but if someone who knows or will run the numbers and has something to add would be extremely appreciated


Current questions
1)Is it OK to cross the woofers at different points?
2)Any modifications for the XO since using a 108 on the bottom rather than the 14-3 with the 250tibq
3)Is it worth it to try to copy the tilted baffle and move the 44 forward to more closely match the 250s? if done how exact on the measurements?
4)Size limitations 9.5” to 10” high, 50” wide, 24” deep, 45lbs

Thanks much ,


Mark