It is hard to find amp to run M2 that is quiet with out selling my legs and arms :/
The JBL M2 is essentially a PA speaker priced higher for the glossier cabinet finish perhaps.
If the main goal is sonics, the Yamaha CZR12 (~2k/pair) or the Pioneer XY-122 (~4k/pair or lower) are really well engineered, incredible sounding speakers, for a lower price. The Pioneer XY series has some TAD hands in it, but without sky high TAD prices.
You should be easily able to find an amp for these without selling your arms and legs. Get any hifi-ish amp, 100W/channel @ 8 ohms, clean class AB. Try something like a Schiit Vidar.
P.S.
The minute you let audiophiles anywhere near speaker, price will go up. Some of these secret high performance speakers with affordable pricing stays with the Pro Audio guys. Just don’t tell too many audiophiles about it.