Plus One® (patent pending) woofer cones – The GTO508C’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 GTO508C features an outboard crossover that has been voice-matched to ensure optimum transition from the midwoofer to the tweeter.My-Ti™ (Mylar®/titanium composite) tweeters – Stiff and light…