Not sure if I have enough oomph.

Nice speakers and congrats! From John Atkinson’s measurements…

My estimate of the Revel Ultima Salon2’s voltage sensitivity was 86dB(B)/2.83V/m. This is slightly lower than the specified 86.4dB but within experimental error of that figure. The speaker’s impedance (fig.1) drops to between 3 and 5 ohms between 17Hz and 600Hz, but as the electrical phase angle is generally low in this region, the Salon2 should not be hard for the partnering amplifier to drive.

I don’t think your amps will have any problem driving these speakers as they probably pump out around 320Wpc @ 4 Ohms that should be more than adequate. Hope this helps somewhat, and enjoy the great new speaks!

There is a ton of pop in those amps. Yes adequate for what you need. 2’s are not the easiest to drive out there. I passed up a pair because I didn’t have the amp to drive them at the time. Adding more power won't get a lot more. +3db to double the power. These Krell's have a lot of headroom for dynamic passages and absorb the electrical phase shift with ease. I would venture a guess and say they would actually work well together!

At first I thought that you were kidding! I think you'll be just fine.

The key here is the speaker impedance plot:

https://www.stereophile.com/content/revel-ultima-salon2-loudspeaker-measurements

This speaker has pretty low impedance (< 4 Ohms) for a wide range (20 to 100 Hz) in the bass.  This does imply that the speaker will be highly amplifier sensitive and auditioning it with different amplifiers will be helpful, or you could use it with a sub below 80 Hz.