12ib4 - Jl Audio 12" Free Air Subwoofer

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Price: $149.99    

Product Feature

• Nominal Diameter: 12inches (250 mm)
• Continuous Power Handling: 125 Watts
• Voice Coil: 2.0" diameter, 2-layer, Kapton former
• Available Configurations: 8 ohm (Single Voice Coil)
• Fs (free-air resonance): 40.5 Hz

12ib4 - Jl Audio 12" Free Air Subwoofer Review

This is a classic JL Audio "free air" subwoofer that has apparently been out of production for many years. Despite likely sitting on a shelf in a warehouse for many years, the package arrived in new condition. There are not many free air subs being made these days, so it was nice to find this 12IB4 still available. I refuse to take up valuable cargo space with a subwoofer box in my trunk. Maybe I am just an isolated case, but I'd bet that there is a good market for free air subs that can be mounted to the rear deck. But alas, nearly all of the currently produced good subs require an enclosure. Anyway, this sub is mounted without an enclosure underneath my rear deck and is being powered with a JL Audio 250W monoblock sub amp. It sounds great. This sub replaced a Pioneer 8 inch shallow mount that was advertised as "free air," but the 12IB4 sounds 100% better. The Pioneer struggled to consistently produce good base. On some tracks the Pioneer did fine, but on others, I just couldn't get the low notes out of it. The 12IB4 produces good sounding bass on every tune.

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