Can all amps drive a 4 ohm load?

I'm surprised that your manual doesn't have this information, but I'd be shocked if that amp would not drive a four ohm load. That doesn't of course mean that there are no amps that won't do it.

Well in a sense most all amps can drive a 4 ohm load but if they don't have much current delivery they won't drive it to loud levels and the sound in general can be a bit enemic. Maggies in general like lots of wattage and current. I doubt that your unit would show off either the capabilities of the amp or the speakers. Not something that I would spend my time doing.

I sold a pair of Monitor Audio 4 ohm speakers to a friend who tried to drive them with a consumer grade receiver. When he used the 12 gauge speaker wire I'd included with the speakers everything worked fine but when he moved the speakers further away and tried to connect them with zip cord the receiver would shut down soon after the music started.

My theory was that the combination of the higher current demand of the speakers and the higher resistance of the skinny wire was tripping a protection circuit in a receiver that just couldn't handle the load. I'm sure the problem was that the inexpensive receiver didn't have the current capacity and I doubt that would be a problem with a higher quality amp.

Nothing will be damaged. If your objective is just to sample the planar sonic perspective, low volume is OK, and your amp will suffice. Just don't expect to evaluate the potential of the Maggies.