I placed mine a little further apart than my last speakers and the Heresys have a huge soundstage and surprisingly good imaging.
I feel part of the reason they work well in this room is because they don't produce much bass below 60hz which helps avoid room modes which are centered around 40Hz. But the bass they do produce is excellent with great pitch definition , no speaker I've owned reproduces an upright bass like they do. A sub is a must , but overdo it and it ruins their sound. It took a while to find a crossover point and slope that didnt muddy their low end.
I feel part of the reason they work well in this room is because they don't produce much bass below 60hz which helps avoid room modes which are centered around 40Hz. But the bass they do produce is excellent with great pitch definition , no speaker I've owned reproduces an upright bass like they do. A sub is a must , but overdo it and it ruins their sound. It took a while to find a crossover point and slope that didnt muddy their low end.