Levinson ML2 might be what you are looking for, too; push 400 watts at 0.5 ohm.....
Amps with high voltage?
I just bought a set of speakers that needs an amp that requires a large voltage swing. This speaker drops to 2 ohms in the extreme treble range. So while it draws almost no current , it needs a large voltage swing to drive to its full outputs capabilities. Any suggestions for amps with large voltage swings?