With solid state amps you don't need to put a load on it.
While true in theory, I think an interesting part of testing amplifiers is when you push them to the ragged edge with 2ohm (or worse) testing and see what they do.
Most amps are capable of low distortion, flat response, etc. The good ones will keep doing that when the rest have overheated and shut down.
I just wish I had a load bank capable of dissipating the multi-kilowatt power levels required.
My last load bank (some fairly big aluminium-clad resistors bolted to heatsinks) did okay until a big Crown amp got all the resistors to go open-circuit in less than 20 seconds.
Next time I'll probably just get some oil-filled electric radiators and put a few in parallel.
Chris