Plus One® (patent pending) woofer cones – The GTO608C’s midwoofer has a cone with more surface area than that found on competing models of the same size. The benefits of Plus One cones are greater efficiency and bass output.Computer-optimized voice matched passive crossover – The GTO608C features an outboard crossover that has been voice-matched to ensure optimum transistion from the midwoofer to the tweeter.My-Ti™ (Mylar®/titanium composite) tweeters – Stiff and ligh…