Well made, interesting design, powerful. Before buying, in few reviews I've read, that they lack bass strength, but for me it seems that high tones is bigger issue - sounds a little flat, maybe it's a thing of taste :) I am living in a dormitory and a problem is - it's hard to use them quietly :) Recommend them for home users who are not audiophiles and care more about design and power, than about sound precision.
JBL Duet III specifications found on the net:
20 watt speaker output
70 - 20000 Hz response bandwidth
3 KOhm input impedance
70 dB signal to noise ratio
1.0% total harmonic distortion
Extra features - Crystal-clear midrange, Warrior transducer technology
2 x left/right channel speaker - ten Watt - 70 - 20000 Hz - Wired
3.5 mm audio line in jack
4.6 inches wide, 4.6 inches deep, 12 inches high
20 watt total output