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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.
Increased power handling also requires greater mechanical integrity. A new cone design greatly improves cone strength and stiffness-to-weight ratio through the use of a new glass fiber/paper composite cone material. A new surround topology and edge damping treatment allow greater linear excursion for matched power and displacement levels. The voice coil benefits from a new winding technique which offers greater power handling and thermal stability. All design aspects of the surround, cone and voice coil have been carefully optimized and controlled to provide smooth and extended high frequency response.
The 2226G/H/J can directly retrofit the 2225H/J transducer without enclosure re-tuning while providing up to 4 dB more acoustic output with lower levels of distortion. The high power handling and robust construction of the 2226G/H/J make it a natural for tour sound and fixed sound reinforcement use, while the low distortion and smooth response make it an ideal choice for critical high level monitoring applications.
Please see .pdf in the manual tab above more info.