earthquake dbx 10
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=100607
Printed Date: May 13, 2025 at 6:54 PM
Topic: earthquake dbx 10
Posted By: chris27
Subject: earthquake dbx 10
Date Posted: December 31, 2007 at 10:31 AM
Does anyone know the airspace on an earthquake DBX-10? Appreciate any help.
Replies:
Posted By: greenbroncoguy
Date Posted: December 31, 2007 at 8:25 PM
chris27 wrote:
Does anyone know the airspace on an earthquake DBX-10? Appreciate any help.
Check out the Earthquake website. The specs on the newer DBX's are the same as the old ones. I emailed the tech people on their website and that's what they told me ( I was looking for the specs on my DBX-12's).
Posted By: chris27
Date Posted: January 02, 2008 at 10:05 AM
Thank you very much greenbroncoguy.
Posted By: audioman2007
Date Posted: January 07, 2008 at 10:16 AM
Do you both have the old black colored subs?
Posted By: greenbroncoguy
Date Posted: January 07, 2008 at 12:02 PM
audioman2007 wrote:
Do you both have the old black colored subs?
That's what mine are... To the OP: are you planning on going with a sealed or vented enclosure? I have been wondering how these subs sound sealed; mine are in a vented box but I have been considering going sealed to decrease my box size and weight. If you are going sealed, I would be interested to know how they sound when you get done.
Posted By: audioman2007
Date Posted: January 07, 2008 at 2:20 PM
To be honest with you, these subs sound better in a vented box. I have heard 1 DVC in a sealed and they werent as loud nor were they as punchy. I would love to get a double vented enclosure for mine. I have a pair of DBX 12" the single VC old black ones in a bandpass box. I love the way they sound but want to get a vented enclosure.
Posted By: greenbroncoguy
Date Posted: January 07, 2008 at 2:51 PM
Yep, I have both of mine in a divided, slot-ported enclosure tuned to ~31hz and they really slam. I also have a subsonic filter set at 25hz and push them, wired paralell, with a 800w rms mono amp. They are fairly punchy for being in a vented box, and I am very pleased with them SQ wise for what they are. Mine are the single 4ohm coils... IIRC I started a thread a while ago with pics of my box buildup, I'll see if I can find it.
Posted By: greenbroncoguy
Date Posted: January 07, 2008 at 2:53 PM
Posted By: audioman2007
Date Posted: January 07, 2008 at 7:56 PM
That is very nice. Did you design that yourself or use a program to help you out?
Posted By: greenbroncoguy
Date Posted: January 07, 2008 at 8:00 PM
audioman2007 wrote:
That is very nice. Did you design that yourself or use a program to help you out?
I used WinSD to get the port dimensions/box volume right, then I "engineered" the design of the box myself as far as port/driver placement goes.
Posted By: audioman2007
Date Posted: January 07, 2008 at 8:07 PM
Would you say it sounds better than a box thats made by a company? I got a bandpass box for my subs. I like the way they sound. A friend of mine had a DVC 12" DBX in a vented box and it pounded very nicely. he didnt make it, but rather it came with the sub when he got it.
Posted By: greenbroncoguy
Date Posted: January 07, 2008 at 10:21 PM
^ I wouldn't be able to offer up any sound advice on this, as I haven't used a prefab box sine my highschool days. However, it would be my thinking that you would be hard pressed to find a prefab that is built to the exact recommended specs for the sub you are going to use. You may get lucky, but more likely than not, it won't be right. A sealed box may be a little more forgiving as far as size, but if it's ported, or worse yet a bandpass, it had better be right or you have a very large weight in the back of your car that does nothing more than hold your speakers up...
Posted By: chris27
Date Posted: January 08, 2008 at 3:17 PM
I am going to build a sealed box. I have had these subs in sealed and vented. They do sound better in a vented box versus a sealed but i am building the box for my dodge ram single cab so kinda have to go sealed. That is a pretty nice box you built for yours.
Posted By: greenbroncoguy
Date Posted: January 08, 2008 at 3:58 PM
chris27 wrote:
I am going to build a sealed box. I have had these subs in sealed and vented. They do sound better in a vented box versus a sealed but i am building the box for my dodge ram single cab so kinda have to go sealed. That is a pretty nice box you built for yours.
Cool, let us know how it turns out. How big are you going to make it? Polyfill? How much power are you going to throw at them?
Posted By: chris27
Date Posted: January 11, 2008 at 2:56 PM
I'm probably just going to build the chambers at 1 cu ft. each. I am using a JL 250/1. I know that seems small but that amp actually pushes the subs pretty good.
Posted By: greenbroncoguy
Date Posted: January 11, 2008 at 3:09 PM
^^^ Cool; I am curious as to how the low frequency extension will turn out with the box being small. We'll see; maybe I've just been spoiled w/ my ported box 
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