Bob: the problem with those specifications is that you just can not infer what it will do at 4 ohms, or for 2 ohms for that matter. It all depends on the circuit design and the component specifications.

The Rat. M80s, VP-150, QS8s, SVS PC 20-39+, OPPO, Onkyo 703s, Harmony 880 Sony 60" SXRD HDTV