kemmler3D
Master Contributor
Good point, they also mention on the product page that the maximum unweighted SPL is 97 and recommended amp is 50-125.They start suffering (distortion) at 96 dB, 11 dB above their nominal sensitivity. 30-40 W in 4R should be enough to reach this threshold.
But the A6B's (purifi-based) recommendation is up to 500w... and the MSRP is about 5x, so in that case asking the user to shell out for a 500w amp is not crazy.