Low-sensitivity speakers — What's special about them?


I'm building a system for a smaller room (need smaller bookshelves), and I did a bunch of research and some listening. I am attracted both to the Dynaudio Evoke 10's (heard locally) and the Salk Wow1 speakers (ordered and I'm waiting on them for a trial). I have a Rel 328 sub.

Here's the thing — both of those speakers are 84db sensitivity. Several people on this forum and my local dealer have remarked, "You should get a speaker that's easier to drive so you have a wider choice of power and can spend less, too."

That advice — get a more efficient speaker — makes sense to me, but before I just twist with every opinion I come across (I'm a newbie, so I'm pathetically suggestible), I'd like to hear the other side. Viz.,

QUESTION: What is the value in low sensitivity speakers? What do they do for your system or listening experience which make them worth the cost and effort to drive them? Has anyone run the gamut from high to low and wound up with low for a reason?

Your answers to this can help me decide if I should divorce my earlier predilections to low-sensitivity speakers (in other words, throw the Salks and Dyns overboard) and move to a more reasonable partner for a larger variety of amps. Thanks.
128x128hilde45

Showing 2 responses by melvinjames

For the past couple of years I’ve been happy running a SET/high-efficiency system but previous systems were all of the higher-power/low-efficiency type. Obviously, there are compelling reasons for setting up a system either way. One thing about the low-efficiency approach I don’t care for is the need to crank the volume for the speakers to come alive. Low level listening just sounds anemic otherwise. Of course, some people get around this using EQ or headphones. Something to consider nonetheless.

@hilde45 .. I should have been more specific. I have a pair of Mark & Daniel Ruby speakers which the manufacturer specs at 82.5 - rather inefficient. The Rubys are a small monitor (2-way design with an AMT tweeter) which puts out a tremendous amount of bass - love them. I’ve run these with numerous amps including a 100 wpc class d and a 110 wpc class a/b. Both amps could drive them to ear-bleeding levels in my room but for late night and early morning listening the drivers simply needed to be played louder than wanted to come alive. I had the same experience with other inefficient speakers as well. Perhaps spending more cash on a bigger/badder (at least 200 wpc) amp would have worked but, ultimately, I chose a different path.