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12ib4 - Jl Audio 12" Free Air Subwoofer
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12ib4 - Jl Audio 12" Free Air Subwoofer



This product is currently out of stock

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

Product Details:
Average Customer Rating: based on 3 reviews
Customer Reviews:
Average Customer Review: 4.5 ( 3 customer reviews )
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Most Helpful Customer Reviews

4 of 4 found the following review helpful:

5Great Old Style Free Air SubwooferAug 14, 2012
By Mc "kasharooh"
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.

3Discontinued woofer over 10 yrsMay 26, 2014
By Shawn Simpson
The woofer I received was very old and the glue was starting to separate before we installed. These have been discontinued for over 10 yrs. so this is to be expected.

1 of 3 found the following review helpful:

5Jl subJul 21, 2012
By Paul b
Good quality sound for a lower powered free-air sub... Just what I was lookin for . Efficient for lower power amplifiers

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