The S5 are very easy to drive:
from XA100 and XA160 is very little the difference.
with the Xp20 (83dB max. level - last edition from xp20) I listen with my 802di at 55dB very good and is the same the S5 and Xa100.5 (and x250.5 too)
with the 160.5 you can "save" arounf 5dB. but are really muchas enough for the S5.
for the Q3 the X160. give a little more pleasure but the sound of the Q serie is very differente vs, the S.
The S is really more aficionado
: for the the S5 is the perfect speaker at today. price / perfomance are very good. the Q3 are great no word but the S5 give you a lot more enjoy.
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