The mb quart and re audio amps u listed are better then the other 2. The mb does rated the last time I checked and the re audio amps are made by us amps.
Since its a 2 ohm load why not look for a used or refirb jbl amps, they do around rated can take a lower load plus they sound great. I have 5 that range from 350-2400 watts and couldn't be happier