Do I need new enclosures??? - AVS Forum
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post #1 of 9 Old 10-18-2013, 02:36 PM - Thread Starter
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Hey guys so I have decided to get two new amps for my Dayton 18" HO's. I will be using two Behringer EP4000's bridged into 4 ohms for each sub. I am currently using sealed 4 ft3 per sub. Do I need to build bigger sealed enclosures to run the EP4000's bridged????

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post #2 of 9 Old 10-18-2013, 02:42 PM
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Originally Posted by DIESEL758 View Post

Hey guys so I have decided to get two new amps for my Dayton 18" HO's. I will be using two Behringer EP4000's bridged into 4 ohms for each sub. I am currently using sealed 4 ft3 per sub. Do I need to build bigger sealed enclosures to run the EP4000's bridged????

I wouldn't run that much power to them if I were you. that's 2k watts PER driver... guys have gotten away with 1400 but 2000 is kinda pushing it.
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post #3 of 9 Old 10-18-2013, 03:02 PM - Thread Starter
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So you don't think they will be able to handle the EP4000??? I was told that they would be perfect. Would maybe the EP2000 be better fit??? How much real world wattage does it put out in bridged mode??? I haven't bought the amps yet so no big deal.

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post #4 of 9 Old 10-18-2013, 03:22 PM
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Originally Posted by DIESEL758 View Post

So you don't think they will be able to handle the EP4000??? I was told that they would be perfect. Would maybe the EP2000 be better fit??? How much real world wattage does it put out in bridged mode??? I haven't bought the amps yet so no big deal.

They are a real world 2000w RMS @ 4 ohms bridged.
You can always run one per driver, having extra power is never a bad thing but I definitely wouldn't give them the full amount of bridge mode.
Personally I would just get the Ep2500/4000's (same amp) just because if you ever feel the need to upgrade, you'll have the extra power.
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post #5 of 9 Old 10-18-2013, 09:02 PM - Thread Starter
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Ok, so will building new boxes (bigger) allow the subs to handle the power better??? Can someone punch in the numbers to what I will get using the EP4000 bridged into 4 ohm and possibly what size of sealed box I will need to build for each????

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post #6 of 9 Old 10-19-2013, 01:54 PM
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Originally Posted by DIESEL758 View Post

Ok, so will building new boxes (bigger) allow the subs to handle the power better??? Can someone punch in the numbers to what I will get using the EP4000 bridged into 4 ohm and possibly what size of sealed box I will need to build for each????

No, the opposite happens.
Making the box bigger makes the driver "excurde" further then it would in a smaller box. The driver moves further for the same given amount of power (but you gain sensitivity). This can be bad or good, depending on the excursion and T/S specs of the drivers used.
If it were me, and I had the Dayton 18's, I would not put them in a box bigger then around 4-5cuft each, unless they were ported.
You are fine.

Putting it in a box much bigger then that will probably cause the excursion to skyrocket when you dump 1000 watts into them, let alone double that, which a EP4000 bridged can put out.
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post #7 of 9 Old 10-19-2013, 06:49 PM - Thread Starter
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We'll subs are in one big standing enclosure divided in the middle. It is currently in the front left corner of the room, I was wanting to build separate cabs and place one on the other side of the screen. Don't really know how this will sound because about 6 feet from there is a hallway. I had two 12's set up this way and did not like how they sounded. They were only being pushed 150 watts each so that's probably why they sounded like crap. Would it be worth me building new cabs for the 18's to see how they react placed this way or do I just leave it alone since I have seemed to find the sweet spot in my room???

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post #8 of 9 Old 10-19-2013, 08:00 PM
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If you don't know if it will be better, just build one more box. Use the old box with just one speaker to test out if it is worth the effort.
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post #9 of 9 Old 10-19-2013, 08:10 PM - Thread Starter
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Sorry that's what I meant to say. Would it really be worth it if the other subs didn't sound well??? Either way I guess it gives me a an excuse to build new cabs if it sounds good!!!!

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