StereoMojo‘s Russ Gates says this about the diminutive JohnBlue JB3 single-driver speaker ($350/pair):
So what is the JB3 in a nutshell? It’s the full range driver speaker for the audiophile that hates full range drivers. I’ve heard back-loaded Fostek, Lowther, etc etc. I’ve built the ‘gimmie’ ratshack 40-1354 5.25 inch full range drivers in a tuned quarter wave. They all did some things very well, but nothing overall in spades. The JB3 shines in the near field and I would ecstatically recommend it for a computer, office, or spare room rig. Pair them together with a subwoofer that has a brick wall crossover around 80hz, and really open them up. The JohnBlue JB3 offers what others in its category don’t – USEABLE bass response, and believable top end extension.
Read the entire review at StereoMojo. Also see David Kan’s review on 6moons.com and Geoff Husband’s review on TNT-Audio.