Home Theater problem

[Chris8sirhC]

I currently have 64 nsb's 16 10's, and two lab 12 tapped horns. I am going to be doing a home theater for a client/friend using these drivers that I already have. There will be a phantom center channel, and a 16 nsb line array for each of the 4 channels. I am going to go sealed with the NSB's and XO to a 103-108 db pro sound tweeter. For midbass i will either do 2x 8 10'' arrays up front, or one 4 10'' array in each corner near the nsb arrays. Both of these options will be floor to ceiling. for 60hz down I will use the two lab 12 tapped horns I have built. My question is more concerning equipment. I already have a behringer digital XO, so crossing over the bass to middbass will not be a problem. My main issue is that as far as I know, every home theater decoder/receiver only has one option for the sub output, and that is a 24db XO point at 80 hz. The lab 12 subs will cover the lowest material, up to 60hz or so, but I would like to run the middbass woofers up to 150hz or so. Its not worth it to have the midbass 10's only covering 60-80hz. So, either I want the bass output to cover up to 150hz (the midbass arrays will xo from this output)or I want the bass output to only cover up to 60hz (and then the midbass arrays will passive xo from each of the 4 main speakers). Do I have any options? What would you recommend?

Also, are there any receivers that will allow me to do a phantom center channel?

[dangus]

As far as I know, most surround receivers allow a phantom center. At least, my ancient Technics SH-AC500D processor and the less-ancient Pioneer VSX816 receiver both do. The crossover frequency was fixed in the Technics, but the Pioneer has an adjustable subwoofer crossover (default is 100 Hz).

If the receiver has preamp outputs, one option is to set the front speakers to "large" and subwoofer to "none". Then you can use an external active crossover and run stereo subs if desired.