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Overview: The JBL GT5-2402BR is a dual 12" preloaded
enclosure with a Slipstream Port. The GT5-2402BR loaded enclosure features 3/4"
medium-density-fiberboard (MDF) construction, high-quality binding-post
terminals and dual 12" GT5
woofers. The GT5-2402BR features a wide-bandwidth design, which provides more
output between 20Hz and 40Hz.
Dual 12" Subwoofers: The JBL GT5-2402BR features a two loaded GT5
12-inch, 4-ohm woofers wired in parallel for a 2-ohm load at the enclosure's
speaker terminals. The JBL Grand Touring Series woofers feature
polypropylene woofer cones with heavy-duty molded dustcaps. The woofers also
feature rubber surrounds to provide exceptional cone-edge suspension and
long-throw linearity with control and stability at the excursion limits. The GT5
woofers feature a progressive spider, which offers better control at the
excursion limits. This progressive spider reduces distortion at high output
levels. The GT5 woofers also feature a vented pole-piece which provides
additional cooling to the woofer's motor structure, resulting in an increase in
the subwoofer's thermal power-handling capability. The vented pole-piece and
motor structure provide additional cooling. In combination with the
rubber-coated tinsel leads, this results in much better long-term reliability.
In addition, the GT woofers utilize dual-stacked oversized magnets which allows
increased magnetic flux, resulting in higher efficiency and better woofer
control. The JBL GT woofers feature a die-cast aluminum basket for added
Hatchback Enclosure: The JBL GT5-2402BR's enclosure is made from 3/4"
medium-density fiberboard (MDF) and is covered with black carpet. It has been
perfectly tuned for the in-car environment so it is optimized for tight,
powerful, and precise bass response. The GT5-2402BR is rated at 2-ohms at the
enclosure's speaker terminals. The GT5-2402BR's is a hatchback style enclosure
designed to fit in the trunk or cargo area of many hatchbacks, coupes, sedans,
SUVs and vans.
Slipstream Port: The JBL GT5-2402BR provides superior performance
thanks to its revolutionary Slipstream port located on the front of the
enclosure. The double-flared shape of the oversized port is precisely
calculated, efficiently eliminating port noise. Even at high SPL, airflow
through the port will remain uniform, offering better low-frequency extension
and woofer protection. This gradual change from high pressure to low pressure
eliminates the audible distortion called "whacking." Because the area of the
port in the middle is much smaller than the mouth of the port, the port can be
much shorter than a cylindrical port with a surface area the same as the
Slipstream port's mouth; this means it can fit into regular boxes. Stickiness
outside the box is maximized by increasing pressure, and stickiness inside the
port is minimized by reducing velocity. The benefit of this proprietary
technology is more bass output with greatly reduced port noise and distortion.
Binding Post: The JBL GT5-2402BR features a pair of gold-plated
binding posts which will accept dual-banana plugs on the right-hand side of the
box (when facing front of box). The GT5-2402BR is rated at 2-ohms at the
enclosure's speaker terminals.
Metal-Bar Grilles: The JBL GT5-2402BR features two Aluminum die-cast,
metal-bar grilles (two metal bars covering each woofer) which looks great and offers a high level of