Will the KW-120-THX subs and a KA-1000-THX amp for the Klipsch THX Ultra 2 system 7.1 configuration work with four SF-3s, two SS-3s, and an SC-3, at least temporarily, and will there be a substantial loss without the KL-650-THX LCRs, the KL -525-THX LCRs and the KS- 525 THX surrounds?