Clayton Audio Class A

Just curious: are there many amplifiers out there that use a balanced bridged class A design like Clayton Audio?
For both the M300’s and the single box version S2000, Wilson uses two class A 75 watt amplifiers in bridged design per channel. Just haven’t seen that topology spoken of much. They do sound quite good. Would love to learn more about this topology. I know it allows larger class A wattage outputs but still surprised that bridged designs double down. (300 into 8/600 into 4). Thanks for your thoughts about balanced bridged class A topology.