Strictly my Opinion. Peak Ampere ratings are near-real world- meaningless.
NO speaker can take such current.
Output devices, as near as I understand, have what is called a 'safe operating range'. Go out of that envelop, and the devices either fuses or shorts. Either way, you are out of action. A fuse may not be quick enough and therefore speaker protection circuits, if employed should take that into account.
From Wikipdia::
Safe operating area
The safe operating area defines the combined ranges of drain current and drain to source voltage the power MOSFET is able to handle without damage. It is represented graphically as an area in the plane defined by these two parameters. Both drain current and drain to source voltage must stay below their respective maximum values, but their product must also stay below the maximum power dissipation the device is able to handle. Thus the device cannot be operated at both its specified maximum drain current and maximum drain to source voltage. [2]
So, if you redline a device in current, you have to have lower voltage so as not to exceed wattage.
Now, forget all this nonsense and buy whatever pleases your ears. Any particular build philosophy has both good and bad implementations. Class (?) is no guarantee of anything. Specsmanship is for ad writers to compare what's in there pants.