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. there response was something along the lines of "oh yeah i know it can handle power." it does get hot but then again this was a subwoofer engineered to take heat.
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. They last longer and are under rated. I did have those for a while and were cheaper and put out for a long time before they gave up on me.
Conclusion: I have two of these breathtaking beasts and they are simply flawless JBL doesn't lie when they say the ultimate woofer, sure there are subs out there that can take 3500 rms but this gti doesn't slack when I first got this I didn't have the 2nd one so I hooked it up to my bpx 2200.1 all by it's self and gave it 2200 rms in this small little sealed box I had laying around and it took it for a good half hour, I wouldn't do it often but it will take a lot more than 700 if...
Conclusion: I owned a single JBL GTi for little over a year when i was first starting out. I had it hooked up to a rockford fosgate 800.1 amp, little did i know this subwoofer could handle so much more power. I finally upgraded to a audiopipe ap3000.1 class d amplifier and wow can this subwoofer handle power!! I've been running about 1200 rms though it for a few months, never any burning of the voicecoils or anything, always a very clean sounding sub.
Conclusion: I upgraded from a 10" Alpine Type X in a ported enclosure to this MkII in a ported, spec'd enclosure powered by an MRP-M1000. I have the gain set about 60% and the low pass filter set at 80Hz. I usually listen to country, rock, and rap at moderate levels, but this sub sounds great even when I want to rage. Blends beautifully with the front stage, and the response in the ported enclosure seems fairly flat (good thing) and surprisingly quick.
Conclusion: This SUB is by far the best sub i have worked/heard. i have been an installer for 8+ years now and this sub blows away anything i have worked with JL W7 had 2 of them this one is way better in SQL and SPL have it in a ported enclosure port tuned to 36.5 hz internally braced box with 10+ braces just listen to it or check the reviews
Conclusion: I strongly recommend these subs. I put four in an 03 impala upgraded my alternator from Ohio generators. Extreme competition I recommend getting the JBL GTO1400.1 seeing how that amp was meant for those. If you have two use zero gauge monster wire or Fosgate wire nothing else will do these subs justice. I've hit 174.3 at competitions with the meter in the kick panel and the seats up. Heck, I think I may go to 15's in my next car.
Conclusion: If your looking for sq and spl u got it I have 2 mk2 12s I'm hitting 145dbs with 500 watts each I'm running a jbl bpx 2200 the only thing I don't like is the 3 olm config if it was d2 I could max out these sub with my amp but the new amp I'm getting is gonna fix that problem hopping to get at least 1500 each wit my new amp anyways get dis sub if u wanna shutum down in spl an sq
ya kno who it is from everywhere, Sonic Electronix
22 August 2009
Conclusion: i have 4 of these 12" monsters, and all i can say is wow, im glad i didnt get the 4 15"s, i compete at a local audio shop, and im killin the competition, ova here, im hittin 151.9 db, wit the amps cranked half way, im runnin 2, 3000watt powerbass amps, and they can handle way more, if u wanna win comps, this is the subs to buy
Conclusion: JBL is definitely the best in the business. There is a reason their products always hold the top spots at sound competition. I have this sub in a 1.0 cu. ft. box, stuffed, running on a JBL GTO 1200.1 and I must say impressed is an understatement. The clarity and output of this sub in such a small enclosure is simply amazing. The thing reproduces notes so low, you gone need a winter coat. If disappointment plagues your life, it's time to change that. Makes yourself happy.