Dynamic power ratings are very misleading, don't know why more companies don't give RMS values which are more representative of the true capabilites of the amp.

The M80 is a 5 ohm load, but there is still enough 'dynamic range' to trigger my onkyo 787 protection circutry on occasion. SO much for Onkyo's WRAT (Wide range amplifier technology)...another useless marketing gimmick.