High Performance Multi-element speakers Features and Benefits Plus Onetrade; Woofers Cones Harmanrsquo;s patented US patent 7 548 631 Plus Onetrade; polypropylene woofer cones provide increased cone area of up to 35 by moving the attachment point between the surround and the frame outward The benefit of this technology is an increase in overall efficiency by up to 2dB This provides superior output and performance when used as an upgrade to a factory system and also for a pure aftermarket system with outboard amplification Edge-driven dome tweeter Edge-drive dome tweeters on 6-1 2 component system and 6x9 3 way speakers deliver broader and smoother high frequency response Engineered to Fit Close attention to fitment is paramount to the success of this speaker family External Crossover with 0 2dB Tweeter level control The Stage3 6-1 2 component systems feature external crossovers to precisely manage frequency distribution between the mic-woofer and tweeter To allow for further system tuning a 0 2dB tweeter level control has been providing allow for adjustment based on tweeter location Vented basket Frame design The super-rigid vented baskets help to cool the voice coils making for a reliable speaker Not only do these look cool but they provide a real world benefit by wicking heat way from the motor structure almost like a fan as the cone moves through its stroke The benefits are lower distortion at high output levels a longer lasting speaker and higher power handling Competitively Tuned For most brands off-the-shelf speakers and a cursory approval of frequency response curves are good enough Thatrsquo;s not the case with JBL We donrsquo;t only listen to our speakers against the competition ndash; we voice them against each other to ensure each line has the consistent JBL sound signature thatrsquo;s known and sought out by those who care about their audio This is just part of an extensive development process undertaken by some of the best transducer engineers in the world to provide the finest listening experience at any price point In the set 4x Stage3 427 - 10cm Speaker 4x Stage3 527 - 13cm Speaker 4x Stage3 627 - 16cm Speaker 4x Stage3 607C - 16cm Component system 4x Stage3 6427 - 6x4 inch Speaker 4x Stage3 8627 - 8x6 inch Speaker 4x Stage3 9637 - 9x6 inch Speaker