craig, i can't say exactly *why* yure getting this effect, specifically w/those components inwolwed, but it woodn't surprise me that ewe could get more total *depth* w/any of 'em in yer system, if ya then start playing w/the speaker locations/sound treatment.
to me, these changes sound like a step in the right direction - even if ya dint like the immediate result of the increased forwardness, etc. playing w/the speaker positioning may wery vell get the soundstage back behind the speakers where ya like it, while *also* increasing the perception of depth further back past yer rear wall. yust a thought...
regards, doug