The 2226G/H/J low frequency transducer represents the results of JBL’s latest engineering research in high power transducer design. The 2226G/H/J signifies a major advance in speaker design by incorporating JBL’s patented Vented Gap Cooling’” technology in an improved Symmetrical Field Geometry (SFG) magnetic structure. To increase power handling while reducing power compression, JBL engineers have created a unique, direct voice coil-to-air heat dissipation method called Vented Gap Cooling. This process pumps air through the magnetic gap and directly over and around the voice coil to provide immediate heat transfer and reduction in operating temperature - a direct improvement in power compression. The 2226G/H/J incorporates an improved SFG (Symmetrical Field Geometry) magnetic structure. Computer-aided magnet optimization and analysis has allowed JBL engineers to optimize both magnet weight and flux density so that the 2226G/H/J is not only 1.5 kg (3.25 lb) lighter than its predecessor, but has reduced distortion as well. This new magnet structure offers much of the weight advantage of rare earth magnet structures without their prohibitive cost.