Thanks for your reply DwK, although I find it tempting to connect both the DTT2500 and the promedias, I'm afraid that it would be overkill!? (3 subs, 5 cambridge speakers, 4 klipsch speakers), besides, wouldn't that mess up the whole sound, you know, having all these different stuff hooked up might result in ugly sound, but maybe, just maybe, I'd be able to match them decently?
Im also thinking that the cambridge rear speakers would be left out since i'm using the promedias for the rear, but what if I use another Y connector?, well anyways Im not so sure that such a setup would sound good at all, but surely it would blow away anyone with the sheer volume.
BUT I could then stay with the dolby digital decoder of the cambridge speakers, I really miss that one, I do think that the dolby 5.1 with the DTT2500's and the JBL subwoofer combo sounded much better on DVD than the promedias do in DVD (4 point surround), again this is just a personal opinion, b4 u all start flaming me...