MC462 enough to handle Revel Salon 2’s?

If you want to avoid clipping, 500 wpc feeding speakers with an 86 Eff. rating will only work til about 80dbs.
This is my estimate . Buy a $700 DBX Venue 360 and see for yourself
what you have been listening to. You may be surprised.

Remember, McIntosh always rate their power very conservatively.

It should. I demoed my Totem Mani ii’s which is an inefficient speaker with a wide range of mcintosh amps and the best sounding came out of the 1k Mac monoblocks. I could has easily lived with the smaller amps, but the 1k’s were spectacular with this speaker.