Check "phase" (positive to positive & negative to negative) of all interconnects & speaker cables. I've found with own system going back to basics is where problem sometimes lies. Equipment sounds to be better than mine. No problem there. Although you may want to upgrade to "better" speaker cables. Follow manufacturer recommendations and/or plug "speaker placement" into favorite search engine. My favorite is http://members.ams.chello.nl/rabru/speaker.html
Widening my soundstage
I can't seem to get my Spendor S-100s to soundstage any wider than the speakers themselves. They're off all walls. Been toed in, toed out, placed on axis, moved, tilted, turned, twisted... Powered by Jolida int. tube amp. Arcam CD. Cardis interconnects. Speaker cables = weakest link = heavy gauge Monster cable copper. Could that be it? Suggested repacements????