For the best sound a fullrange is best. They're called headphones.
If you mean a single driver "Extended range" speaker, they can get most of the frequency range, without the signal degrading crossover and it comes from a point source. The clarity and lucid sonic presentation can be very addictive in a well done single driver speaker. The biggest shortcoming is that they won't go from 20Hz to 20kHz by themselves, but most 2 and even 3-way speakers don't do it either. I've done both multi-way and FR single driver speakers and it depends on what you want.
Either is worthy if well done, they're just different approaches to quality sound.
Best Regards,
TerryO
I agree, I'm enjoying my BOSE 901 speaker headphones right now ! :yes:
