When you get down to the 2 ohm range, it's best to talk to the manufacturer and tell them what loudspeaker you are trying to drive. Specs don't tell the whole story and I would not put a lot of faith in them.
Best High Current amplifiers stable into low impedances
Seems like all I hear when reading Stereophile’s measurements when it comes to speakers: must be used with a High current amplifier stable at 2 Ohm. Most amplifiers rarely give specs related to 2 ohm loads. Most amplifiers are only stable into 8 and 4 ohm loads, and if they mention 2 ohm it seems they aren’t saying continuous, but peak, short term power.
With speakers becoming more complex and harder to drive, what are some high current amplifiers that have no problem with these 2 ohm or lower impedance speakers?