The power supply and output transistors are the primary deteminants of ability to pass current.
The second amp in the example above is able to pass more current, all things being equal.
I don't look for amps that can drive those speakers and never will; there are many good loudspeakers that are high sensitivity. However you will need a high current amp that is stable into low impedances with excellent heat sinking, or a fan, if that is what you want to drive, since the lack of efficiency of these speakers, coupled with the stupid impedance curve and venturesome phase angles, will require continuous high current output as well as high peak current output.
The second amp in the example above is able to pass more current, all things being equal.
I don't look for amps that can drive those speakers and never will; there are many good loudspeakers that are high sensitivity. However you will need a high current amp that is stable into low impedances with excellent heat sinking, or a fan, if that is what you want to drive, since the lack of efficiency of these speakers, coupled with the stupid impedance curve and venturesome phase angles, will require continuous high current output as well as high peak current output.