They are not, but they are 4 ohm. I also have a 45 wpc ARC which gets plenty loud enough for me. I also have two powered subs in the system. Nelson rates the F6 at 50 wpc when hooked to 4 ohm speakers, but says it easily gets over 60. I believe it should get as loud as the ARC. I just do not like to listen to really loud music any more... but purity and quality
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