What is your opinion of single driver speakers

Single-driver speakers can be dynamic and sound good however they really need one or two separate powered subwoofers as most multiple speakers need.

I've heard only a few truly single driver speakers whose overall performance was pretty good with all types of music.  One is the Charney Companion speaker with the AER driver, the other is a Voxativ speaker.  I also recently heard a Songer single driver system that sounded very good, but, I did not hear them enough to decide whether the Songer single driver or Songer full-range with woofer model was better (amazingly, they are the same price). 

But, I've heard many truly excellent systems that used full-range drivers in multiway systems.  I recently heard a Voxativ two-way that sounded really good, I like the Cube Audio Nenuphar Basis (10" full-range plus a built in subwoofer), and I like the bid Dolce Vita system with an 8" full-range driver plus a tweeter.  I've heard a few custom-made systems that also ultize a full range driver with a tweeter or woofer, and liked them too.  

I have not heard the Sibelius but I did own a few single driver speakers, mainly using Lowther drivers. I think Bache's design of using a modified single driver to cover the range from 500 - 8,000hz, augmented by a super tweeter and woofers is a better way. The crossover is a cap for the tweeter and a coil for the woofers. The midrange has directly connected to the amps.  It's more balanced than when I was using a Rel subwoofer with a pair of Rethms.

Single driver speakers can sound amazing.  For example filed coils to me are exceptional. Matching to the right amp also helps.  845, 45, tubes amps and some 1 watt amps make such speakers sound amazing.  Uping the price the horning speakers are also a consideration if you got the scratch.

Happy Listening.

What are you thinking of driving the Pearls with?