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.
8 ohm nominal impedance/4.69 ohm minimal impedance--is this a bad load (on paper)?
As per usual, I measure once and sometimes cut twice. I am just curious, is all, as I am doing reading that I probably should have done back in May. That impedance drop was what was listed by Ern's Corner for the Revel M126Be, and I was just wondering how it stacked up on paper.
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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. |
@immatthewj, everything you need to know about speaker impedance see here. 😎 Mike |
Thank you for explaining that to me, @erik_squires ; thanks for the link, @ditusa , thanks @everybody for the input.
@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. |