Rene, I think you will have to buy a 976 and do the testing in your system to get any definitive answers. I am pretty sure you are out beyond what most of the Outlaws are trying to do with their systems. If you are interested in the 976, you may find that the PEQ and REW will allow you to tweek your system without needing Dirac Live. REW is a pretty extensive system that should allow you to do anything you want for each channel of your system. Then you can decide whether you need additional gear to accomplish your goals. One big advantage would be that Outlaw customer service will be able to help some and the forums in the Saloon will have some additional input. There are several Outlaws which are anticipating the use of REW and PEQ to correct their rooms.
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Music system
Model 990/7500/Magnepan 1.6 QRs/Technics SL1200 MK2/Aperion S-12 Subwoofer/OWA3/Sony NS75H DVD
APC H15 Power Conditioner

TV System
Large Advent Loudspeakers/ Polk center/Monoprice surrounds/Panasonic Viera 42 inch/Onkyo HT-RC260/Sony BDP S590/Directv


Home Theater System
Onkyo PR-SC886/Outlaw 7125 Klipsch RF-82 L/R,RC-62 center, RB-35 SR/SL, BENQ HT1075, Outlaw LFM1-EX/OPPO BDP-83/Directv
Harmony ONE
Blue Jeans and Monoprice interconnects
APC H15 Power Conditioner