From what Scott says, I don't think it's really anything to worry about unless you drive a Krell or Sunfire Signature at full power. He said it can still drive virtually any amp to clipping, so I would feel pretty safe that it could drive an Outlaw Model that loud. All you are losing is a little bit of loudness at the top end.

To my understanding, this is not the same as losing half the power in the amplifier. So at normal volumes (or even pretty loud levels) your system will sound exactly the same as it did if it had the extra 3db available on the 950.