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Discussion Starter · #1 ·
I'm looking for an IB sub that will work well with Digital Designs m2a amp. The amp will do 1600 watts at 1 ohm. I understand that XMAX can be reached at a much lower number than what the sub is rated for when run IB. I however do not understand how to figure out which sub is appropriate for this amp. If it matters it will be run in my 2004 corolla.
Hopefully someone understands this and can m make some recommendations.

willing to run a single 12, 2 12s, 2 10s... honestly whatever fits the bill. prefer to keep price under $800
 

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Actually simple.

First Ib with a pretty powerful amp.

JBL GTi MII Pretty dang hard to mechanically over drive them ;)
 

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The key is to pick a sub that you like, then add the amp. You can always turn the gains on the amp down. But that GTi will take more power than most other subs in an IB configuration. The question is, do you want the best IB sub you can get for $800, or do you just want something that you know won't be damaged if you try to give it all of the power that you have? You can get 2 AE 15's for that budget, they won't use all of the power that you have, but they will get plenty loud and be among the cleanest subs you can us IB.
 

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Discussion Starter · #5 ·
Just want something that'll sound amazing and not break with all the power I give it. Kinda don't think 15s will fit too easily either. I'd prefer to stay smaller than 12s
also 800 was the max budget, honestly I'd rather not go near 800
 

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Just because you have 1600w on tap does not mean you have to use it all. You can literally use any sub you want with that amp. The only thing at risk of damaging the sub is you, not the amp.

If you are really worried about it, just buy a sub (or pair of subs, trio, quartet, whatever) that can be wired into a higher final load like 2ohm or 4ohm. But that is just to protect you from yourself, not to protect the subs from the amp.

Buy the sub (or subs) you want. Set the amp and system properly and don't be an idiot and you will be fine.
 

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Care to explain some of your reasoning?
Sure.

The JBL GTi sub uses a unique coil configuration. this unique-ness means you can not over drive the sub mechanically with too much power. Makes them very user friendly to people new to IB. IB has no air spring like a sealed box.So it takes less power to mechanically over drive it.

The JBL has about equivelent Le as the AE subs recommended. Which means technically you can use the subs (AE and the JBL) for up to lower midrange duties:) Not that you have to...:D

And what the other guys said about you can use about any sub and just use your head, is spot on. Damage to subs is almost always avoidable. But we all make mistakes and oopsies happen. So again why on a first IB, I recommend the JBL. Especially not knowing what your listening habits, expectations and previous equipment other than the DD M2 amp was.

And really look to see if you could fit a baffle board with a 15. Bigger cone is better for IB. Or any sub application in my experience...:D
 

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Discussion Starter · #8 ·
Fair enough. The car currently has a jl 500/1 with 12w6 in a pored box. I'm looking for more umph
I listen to alot of electronic, specifically dubstep.
currently have ID ctx65cs powered by jl 300/4
Pioneer avh-5600bhs
jbl ms-8 on the way
 

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With all things being equal, IB will not give more "umph" than a properly tuned ported box. What it will do is smooth out the frequency response, but that generally means less output where you want it. A ported box can give a good amount of extra SPL in a certain passband. IB won't get as loud as the same sub in a ported box.
 

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Discussion Starter · #10 ·
Hmm good to know. I really like the idea of freeing up some space in the trunk too. So if at all possible I'd like to:
Do better than my 12w6 in terms of loudness
free up space in the trunk
have better response for all frequencies, not just what the box is setup for
 

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If you want to do better than a 12w6 in a ported box I think you'll need at least 2 10's IB. I'm just speculating, but if the 12w6 was in a properly tuned box there is no way a single 12 IB will do what the w6 did.
 

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Fair enough. The car currently has a jl 500/1 with 12w6 in a pored box. I'm looking for more umph
I listen to alot of electronic, specifically dubstep.
currently have ID ctx65cs powered by jl 300/4
Pioneer avh-5600bhs
jbl ms-8 on the way
That 500/1 is under-powered for a 12W6, isn't it? I know JL says it's rms are 600W for continuous power handling. I know from experience that you can push it a little over that.

Try hooking up that DD M2A and tuning it to 600w, which at 4 Ohms should be around 48.9 volts.
Turn on the subsonic filter dial up to about the 10'o clock position to protect the W6. I seem to remember JL recommending a infrasonic filter at around 30hz, but check your manual before you set that filter.

Then try it out before changing everything. The 12w6 is a great sub. If all you are lacking is umph, it might just be because you haven't driven the sub as hard as it is made for.
 
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