As the bigger brother of JBL's award-winning $100 multimedia twin-speaker set Duet II, the company's larger $150 Duet III preserves the same silver and black champagne glass-like vertical designs, an onboard digital amplifier, and dynamic equalization to optimize the speakers' sound relative to the connected iPod, iPhone, or computer. While the 10-inch-tall Duet II offers 6 Watts of power per satellite using 40-millimeter Phoenix SE drivers, the 12-inch-tall…
