Subjective JL really seems to have their stuff together with this box and woofer combo thing. Practically any system they produce is a great addition to a vehicle's factory system, and if you want to build a custom system, there are few better places to start. We installed it in one of our daily drivers with a modest system, and something tells us the trunk latch on this car may mysteriously jam if JL ever calls for its return. This sub provides accurate reproduction of any program material, but works especially well with rock-style kick drums, producing that upper bass wallop that you feel in your gut even when played at lower power levels. Extreme low-frequency reproduction is equally impressive.
Low organ notes only produce that annoying flapping noise at stupid power levels.
Even the torturous upright bass is well resolved, lacking that aggravating one-note emphasis that plagues so many systems. The impedance curve for this unit shows a maximum of 26.7 ohms and a minimum of 4.9 ohms over its usable range. These values occur at 48 Hz and 90 Hz, respectively. Average impedance measured 10.4 ohms. As you can see by the above review, we're excited about the new JL Audio W3 series of woofers here at the Autosound 2000 Test Labs.