Earthquake sws-8xi Worth it???

eldogo · 08-14-2014, 10:00 PM

I know this has been discussed plenty of times in the forum, but I haven't got my questioned answered. I was wondering if they are worth it!!
I currently have a JL Amp installed which made a big difference, and now I'm on the fence with replacing my under the seat subs.

Should I do it?
Thanks.

Ivan James · 08-14-2014, 10:47 PM

I'm in the same boat. I put in the JL XD 400/4 with the Technic harness, but I'm not overly thrilled with the results. It sounds like you really need a processor if you get the Earthquakes though.

Wongway · 08-14-2014, 11:24 PM

I personally don't believe they're worth it. Because from all reports I've seen, the Earthquakes really don't sound great for midbass.

Your actual mids in the doors probably are good to maybe 300hz?
The underseats are there to handle the stuff from 300hz on down.

The Earthquakes don't do that 300hz level very well. So from 300hz to about 120-130ish? It will sound like you're missing out on a lot of music.

You could probably try pushing the door mids down to 200hz or so, but you'll still feel like you're missing chunks out of your music.

ctuna · 08-14-2014, 11:51 PM

Jehnerts XE 200's
Expensive but worth it.

eldogo · 08-15-2014, 08:50 AM

ill look into these. Im looking for low bass.. More punch and rumble.

Quote:

Originally Posted by ctuna

Jehnerts XE 200's
Expensive but worth it.

emoon3 · 08-15-2014, 10:24 AM

Quote:

Originally Posted by eldogo

ill look into these. Im looking for low bass.. More punch and rumble.

Honestly, if you're really looking for low bass punch and rumble, you're going to want to get a trunk sub imo.

ctuna · 08-15-2014, 10:39 AM

Ditto to emoons statement.
Although your mid range will still be weak and muddy.
You need to upgrade at least your front doors to .
You just can't upgrade one thing and expect the others to
keep up or be in balance.

eldogo · 08-15-2014, 11:26 AM

Quote:

Originally Posted by ctuna

Ditto to emoons statement.
Although your mid range will still be weak and muddy.
You need to upgrade at least your front doors to .
You just can't upgrade one thing and expect the others to
keep up or be in balance.

Got you! Have you made any upgrades to your system?

Wongway · 08-15-2014, 11:57 AM

I'm going to guess, the better upgrades to keep a relatively stock look is get something along the lines of Jehnert Flatline kit. (I am positive 6spdcoupe can get those to you). I do believe MBquart and probably a few other companies have some sort of drop in replacement kit as well. Not sure where to source those pieces though.

And then follow along with kaigoss69's Infinite Baffle thread here for (most likely) the hardest deepest rumble you can get.

For a slightly more stock look, go with a corner loaded subwoofer in the trunk however, it more than likely won't hit or rumble as hard as an infinite baffle setup.

08-14-2014, 10:00 PM	#1
eldogo Lieutenant 274 Rep 406 Posts Drives: BMW 328xi BMW X5 F15 BMW M2 Join Date: Mar 2013 Location: Virginia iTrader: (0) Garage List 2017 BMW M2 [0.00]	Earthquake sws-8xi Worth it??? I know this has been discussed plenty of times in the forum, but I haven't got my questioned answered. I was wondering if they are worth it!! I currently have a JL Amp installed which made a big difference, and now I'm on the fence with replacing my under the seat subs. Should I do it? Thanks.
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08-14-2014, 10:47 PM	#2
Ivan James Enlisted Member 1 Rep 31 Posts Drives: 335i Join Date: Jun 2014 Location: Plano, TX iTrader: (0)	I'm in the same boat. I put in the JL XD 400/4 with the Technic harness, but I'm not overly thrilled with the results. It sounds like you really need a processor if you get the Earthquakes though.
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08-14-2014, 11:24 PM	#3
Wongway Captain 28 Rep 609 Posts Drives: 328i xdrive Join Date: Sep 2013 Location: Pittsburgh, PA iTrader: (0)	I personally don't believe they're worth it. Because from all reports I've seen, the Earthquakes really don't sound great for midbass. Your actual mids in the doors probably are good to maybe 300hz? The underseats are there to handle the stuff from 300hz on down. The Earthquakes don't do that 300hz level very well. So from 300hz to about 120-130ish? It will sound like you're missing out on a lot of music. You could probably try pushing the door mids down to 200hz or so, but you'll still feel like you're missing chunks out of your music.
	Appreciate 0 Quote

08-14-2014, 11:51 PM	#4
ctuna Lieutenant General 1911 Rep 13,104 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	Jehnerts XE 200's Jehnerts XE 200's Expensive but worth it.
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08-15-2014, 10:39 AM	#7
ctuna Lieutenant General 1911 Rep 13,104 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	Ditto to emoons statement. Ditto to emoons statement. Although your mid range will still be weak and muddy. You need to upgrade at least your front doors to . You just can't upgrade one thing and expect the others to keep up or be in balance.
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08-15-2014, 11:57 AM	#9
Wongway Captain 28 Rep 609 Posts Drives: 328i xdrive Join Date: Sep 2013 Location: Pittsburgh, PA iTrader: (0)	I'm going to guess, the better upgrades to keep a relatively stock look is get something along the lines of Jehnert Flatline kit. (I am positive 6spdcoupe can get those to you). I do believe MBquart and probably a few other companies have some sort of drop in replacement kit as well. Not sure where to source those pieces though. And then follow along with kaigoss69's Infinite Baffle thread here for (most likely) the hardest deepest rumble you can get. For a slightly more stock look, go with a corner loaded subwoofer in the trunk however, it more than likely won't hit or rumble as hard as an infinite baffle setup.
	Appreciate 0 Quote