8 ohm nominal impedance/4.69 ohm minimal impedance--is this a bad load (on paper)?

Thank you for explaining that to me, @erik_squires  ; thanks for the link,  @ditusa  , thanks @everybody for the input.  

 So check your amp’s specs before you buy the Revel M126Be or any speaker.

@sbayne  , well, that's what I meant about my propensity to measure once and cut twice.  The speakers are already set up in my listening rfoom and being auditioned . . . and now I am finally asking that question.  The amp is a Cary V12 and it does not seem to be straining to drive the speakers in 50 wpc triode mode.  I have played around a bit with the 100 wpc ultralinear mode, but I believe I prefer the sound in triode.

Impedance varies greatly when driving speakers. So for the Revel dropping to 4.69 ohms is really no big deal. It’s when a speaker drops below 2 ohms you might have a problem.  Both my Hegel and my PS Audio amps have no trouble handling 2 ohm loads.

@immatthewj, everything you need to know about speaker impedance see here. 😎

Mike

Phase angle is another spec to consider (aside from impedance) as the combo can make or break an amp.

Stereophile seems to measure both in the reviews I've read.

DeKay

+1erik. The minimal drop of 4.7 ohms is not unusual for a 8ohm nominal speaker. 

On paper, a 4 ohm load is reasonable. BUT it all depends on your amp. The amp must be able to deliver sufficient current when the 4 ohm load is hit. I’ve seen name brand receivers shut down and poorly designed tube amps, with insufficient output transformers, severely clip under a 4 ohm load. So check your amp’s specs before you buy the Revel M126Be or any speaker.

4 Ohms or higher is usually "easy to drive" as even inexpensive integrated amps usually support 4 Ohms.  The combination of phase angle and impedance matters so it may require more current than apparent, but 4.7 is a pretty good speaker.  Honestly it's hard to find speakers that don't dip below 4 Ohms at least somewhere.