Summary: This thing is awesome!! I have it hooked up to a hifonics brx2000.1d amp and I have a 2.25 cubic ft enclosure (needs a 2.75) but dang!! This sub is wired to 3 ohms and is pushing about 1000watts rms. this thing is definitely underrated!
Summary: By far the best car subwoofer I have ever heard. This thing produces clean and deep bass that hits you without no annoying distortion. I will own this babe for a nice 10+ years. When your looking to buy a subwoofer, you have to ask yourself how good is the bass.
Excerpt: I changed my systems from Polk which I loved and thought I would try JBL. I believe I have falling in love all over again because I am totally blown away by the clarity of my system which consist of P660c, gto329, p662, p963, 3each w12gti wkii subs, gto1001ez sub amp and gto 840ez 4 channel amp...
Excerpt: Having played around with many subs from different brands(many high end)this GTi sub is by far the most musical subwoofer I have ever used.Stunning attack,phenomenal low end without any hints of struggle.Powering this sub using JBL Crown amps puts it on a whole different level.If you are looking for...
Summary: This sub lives up to every 5 star review. It is a total beast and produces some incredibly detailed bass. I have 2 now - one in a sealed 1 cubic foot box as suggested by JBL for optimal sound accuracy and another in a tank of a ported bassworx box. Both are made of 1" mdf.
Conclusion: wow, what can you say. for starters this sub is rated at 700Watts RMS, but it is quite capable of handling much more! i did contact jbl's tech support and engineering department when i hooked this sub up to my planet audio BB2400.1, i told them that i was sending ~1200 watts to this sub.
Summary: I bought 2 JBL W12GTi MkII, 4 years ago, and still bring a powerfull and deep bass, like never before i heard. this subs, need a big responsable amplifier, i had a Power Acoustik 5500 (peak) 1700 rms 4 ohm. but remember this subs had 6 ohm, so for avoid damage it amplifier have 755% gain level.
Conclusion: I got two gti's when they first came out and got sick of them blowing out. Then i got 2 L7 12" kickers. Not only have they out lived the gti with same power output but they bank way harder way longer, sound better, etc. Buy this speaker at your own risk and if you do purchase a jbl amp.