I have a Linn L100 power amp which does accomodate 2 pairs of speakers . I have tried a pair of carlsson OA50's and Sonab 0A14's both upward facing speakers and the soundstage is still apparent . Walls don't matter with these speakers . as someone once said 2 is better than 1 so logic dictates 4 must be better than 2 ?
Does anyone play two pairs of speakers at the same time?
I have found that certain combinations of speaker pairs produce a better sound than the single pair alone. For example: Klipsch Quartets and PSB Image 4T (new tweeters from Vifa) Quartets inside pair and volume matched to PSBs. I have done this over the years and found some great combinations.