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X3 E83 (2004 - 2010)
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  #176  
Old 01-03-2012, 12:48 AM
Evlengr's Avatar
Evlengr Evlengr is offline
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Quote:
Originally Posted by Bufalo View Post
Anyone ever do true measurements of rear clearance on the front speakers? Crutchfield has Boston SE45's on sale right now, and if they fit, I'm making the move. I've had BA speakers in most of my cars, and I'd love to do the same in my recently acquired '07 X3. I like the way those Earthquake subs fit right into the stock "enclosures," I think I'll be doing a simple system of four 4" coaxes and a pair of those 8's running low midbass and semi-sub. Should be fine as an upgrade over stock, which I've quickly grown to dislike!

2 and 1/8 is the most, but that is not the real issue. The size (diameter) of the magnet is the thing that is hard to measure. There is a gentle slope to the metal directly behind the speaker placement.

I know these will fit:

Alpine SPS-400 and 410

Infinity Kappa series (older ones) with neodymium magnet.

Focal v100 low profiles.

I have heard the BA will fit (very snug) but fit. I can't say for certain as they do use a very large magnet. BA's are my favorite sounding speaker so I would go for it if you can return them in exchange for the Alpine's are they are close in sound to BA. Not harsh but nice even tone and very good imaging for their price point.


That will be a very nice set up.

PS nice to see people taking this step. 4 years ago when I first mentioned changing the sound system in the X3 I was considered some sort of Pariah and lots of negative comments. Now I see many people realizing they can do so much better for very little money.
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2013 S4 Loaded (and NO RFT's) Awesome is an understatement
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2007 AT X3 RIPOS
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  #177  
Old 01-03-2012, 03:22 PM
Bufalo Bufalo is offline
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Good to hear some others have tried the Boston's, I'm also considering a set of Rockford Fosgate's. Knowing that there are some reliable 2nd options out there, I'd just as soon try out some other speakers to see if we can increase the number of "known-good" configurations. If they don't work, then at least we know, and I know I can fall back on others to move forward.

I had read some of the older threads about stereo upgrades, and it baffles me the mentality of some folks who think that something that increases the enjoyment of your vehicle as much as improving the stereo does is somehow some kind of blasphemy in a BMW. It's just a car, right? I'm with you though - give me something that's worth listening to! I've never kept the stereo stock in any car I'v ever owned.
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  #178  
Old 01-04-2012, 02:02 AM
x3oiler x3oiler is offline
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Quote:
Originally Posted by elevatorguy925 View Post
I have replaced the door speakers with the Alpine sps-410's and added a powered sub.
Do you think the stock amp would drive the earthquakes?
Nope. I tried it. Nothing there.
The earthquakes are not as sensitive I think so need more power to drive them than the stock unit has.
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Last edited by x3oiler; 01-04-2012 at 02:07 AM. Reason: typo
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  #179  
Old 01-04-2012, 04:51 AM
rwhitman rwhitman is offline
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Oiler,

Do you have the 4 ohm or 2 ohm SWS-8's? I've read that the 2 ohm are a direct replacment without adding an amp. Thanks,

Robert
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  #180  
Old 01-06-2012, 03:35 AM
x3oiler x3oiler is offline
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Originally Posted by rwhitman View Post
Oiler,

Do you have the 4 ohm or 2 ohm SWS-8's? I've read that the 2 ohm are a direct replacment without adding an amp. Thanks,

Robert
4 ohm

I think my sig is wrong . . . 8X is 2 ohm and I definitely have 4 ohm.
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Last edited by x3oiler; 01-06-2012 at 03:37 AM. Reason: big mistake - read the post next time before answering
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  #181  
Old 01-06-2012, 04:30 AM
elevatorguy925 elevatorguy925 is offline
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Quote:
Originally Posted by deafwish View Post
Following some advice from one of Australia's top Car Audio designers (FHRX Studios), I ended up sealing the under-seat enclosures & Dynamatting them.
The supposed ported enclosure the stock speakers are in, is a joke. It has 2 openings that could not possibly be tuned.
The supposed port does not go in to the B pillar, as there is sound insulating foam there.
Having a small, sealed enclosure should also assist in their power handling - when amplified.
Midbass sounds far more accurate (less boomy) in the sealed enclosures and I've fitted a pair of inductors which has removed the high-end superbly (thanks Jim!).
FYI - my X3 has 6.5" midbass - not 8"! The top looks 8" but the woofer itself is a 6.5"!
It's sounding pretty darn reasonable now, with the staging back up just above the centre of the dash (inductors worked wonders with this) - just need to sort out the loud mid's with some more EQ...






What did you end up using for the inductor value on the under seat subs?
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  #182  
Old 01-06-2012, 08:23 AM
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Evlengr Evlengr is offline
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Quote:
Originally Posted by x3oiler View Post
4 ohm

I think my sig is wrong . . . 8X is 2 ohm and I definitely have 4 ohm.
That definitely proves that there are two different speakers underneath.

My subs under the seat are 2 ohms.
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  #183  
Old 01-06-2012, 01:36 PM
deafwish deafwish is offline
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Elevatorguy925 - I recall using 0.52mH Inductors.
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  #184  
Old 01-06-2012, 04:35 PM
elevatorguy925 elevatorguy925 is offline
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Quote:
Originally Posted by x3oiler View Post
Nope. I tried it. Nothing there.
The earthquakes are not as sensitive I think so need more power to drive them than the stock unit has.
Thanks, guess I should have read a bit more as it as addressed already. I thought more power would be needed.

Deafwish, thanks for inductor info
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  #185  
Old 01-06-2012, 08:43 PM
deafwish deafwish is offline
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No problems, but x3oiler was the brains behind the values neded! :-)
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  #186  
Old 01-07-2012, 09:50 AM
rwhitman rwhitman is offline
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Here is a link to a site that has a nice calculator for figuring out the inductor needed for various low pass filters. Looks like .52mH will give a cut off of about 1200Hz with the 4 ohm speakers.

http://www.carstereo.com/help/Articles.cfm?id=2
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  #187  
Old 01-07-2012, 10:43 PM
bruce325xi bruce325xi is offline
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Has anyone tried fitting JL Audio 4" speakers in the doors ? I like their sound better than Alpine's
http://http://www.sonicelectronix.co...o-C2-400x.html

Thanks
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  #188  
Old 01-08-2012, 01:20 AM
deafwish deafwish is offline
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The JL's generally have a wonderfully warm sound to them.
I'd had 3x sets of VR600 CSI's in my past few cars & can't fault JL's sound reproduction.
Let us know if they fit!
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  #189  
Old 01-14-2012, 12:45 PM
Bufalo Bufalo is offline
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Quote:
Originally Posted by Bufalo View Post
I'm also considering a set of Rockford Fosgate's. Knowing that there are some reliable 2nd options out there, I'd just as soon try out some other speakers to see if we can increase the number of "known-good" configurations. If they don't work, then at least we know, and I know I can fall back on others to move forward.
So I can say from unfortunate experience that the Rockford Fosgate 4" coaxes do NOT fit. Their frames have a great mounting set up that matches the stock BMW speaker bolt pattern, but the extra mount points hit on the tweeter housing and the bolt holes would need drilled out. Neither are huge issues, but I'm trying to avoid too much extra work just to fit speakers. Also, the cones are pretty big, and the speaker surround would be crushed by the plastic mounting hole - would basically suffocate the speaker's ability to move, stifling any proper response. I didn't think to take pics, and the car is back together now. Just suffice to say they don't work without customization, and I would doubt they're a speaker that's worth the extra work when other (probably better) speakers are already proven to drop in.

Soooo, it's on to trying something else. Something more "traditional" for a 4" coax.

Now is when I really get disappointed that "car stereo shops" don't exist like they used to. I'd love to go LISTEN to some speakers and see what I do and don't like. 15 years ago this was no problem, there were plenty of independent shops with speaker displays, now it's about impossible. The only game in town is friggin Best Buy, they only have Pioneer 4", and then the display doesn't even work right!


I don't necessary dislike alpine (which has been recommended a bunch here), but they've never been my favorite, either. Still, I would suppose anything is better than the stock junk I just had to re-install into the car, huh?
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  #190  
Old 01-14-2012, 06:38 PM
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Evlengr Evlengr is offline
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Quote:
Originally Posted by Bufalo View Post
So I can say from unfortunate experience that the Rockford Fosgate 4" coaxes do NOT fit. Their frames have a great mounting set up that matches the stock BMW speaker bolt pattern, but the extra mount points hit on the tweeter housing and the bolt holes would need drilled out. Neither are huge issues, but I'm trying to avoid too much extra work just to fit speakers. Also, the cones are pretty big, and the speaker surround would be crushed by the plastic mounting hole - would basically suffocate the speaker's ability to move, stifling any proper response. I didn't think to take pics, and the car is back together now. Just suffice to say they don't work without customization, and I would doubt they're a speaker that's worth the extra work when other (probably better) speakers are already proven to drop in.

Soooo, it's on to trying something else. Something more "traditional" for a 4" coax.

Now is when I really get disappointed that "car stereo shops" don't exist like they used to. I'd love to go LISTEN to some speakers and see what I do and don't like. 15 years ago this was no problem, there were plenty of independent shops with speaker displays, now it's about impossible. The only game in town is friggin Best Buy, they only have Pioneer 4", and then the display doesn't even work right!


I don't necessary dislike alpine (which has been recommended a bunch here), but they've never been my favorite, either. Still, I would suppose anything is better than the stock junk I just had to re-install into the car, huh?
Ten times better. I had to reinstall the stock ones for about a week (the sps-400's blew from running my amp too hot). When I finally got the replacement sps-410's back in, it was night and day. All of a sudden stereo imaging was there again and subtlies of hearing someone pulling their fingers away from an acoustic guitar string (Al Dimeloa) where there again.

At this point I bet the pioneers sound better, but I hear you. Would be nice to do A-B comparisons with speakers like the old days, and I won't buy anything from Best Buy. I hope that chain crumbles. They destroyed the small shops we loved like Clear Channel destroyed radio.
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2013 S4 Loaded (and NO RFT's) Awesome is an understatement
2008 MT X3 RIP you were a faithful sidekick and will be missed.
2007 AT X3 RIPOS
2005 GC
2000 Jeep Cherokee
1997 Twin Turbo RX-7
1984 GTI Wolfsburg Edition Neuspeed and more
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  #191  
Old 01-16-2012, 04:49 PM
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gzep23 gzep23 is offline
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heres some pics of what i did....very hard to take pics and do the work...especially when you get so caught up in it and forget to take pics lol sorry
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  #192  
Old 01-16-2012, 07:18 PM
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Evlengr Evlengr is offline
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Betcha' it sounds ten times better.

Did you get a nice laugh when you saw what BMW was passing off as speakers?
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2013 S4 Loaded (and NO RFT's) Awesome is an understatement
2008 MT X3 RIP you were a faithful sidekick and will be missed.
2007 AT X3 RIPOS
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2000 Jeep Cherokee
1997 Twin Turbo RX-7
1984 GTI Wolfsburg Edition Neuspeed and more
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  #193  
Old 01-17-2012, 07:36 AM
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the clarity.....is....amazing....and i cant believe that they could call that a speaker lmao...anyway took like 15 mins and came out amazing...i did the T tap as you recommended
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  #194  
Old 01-17-2012, 06:39 PM
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Evlengr Evlengr is offline
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Originally Posted by gzep23 View Post
the clarity.....is....amazing....and i cant believe that they could call that a speaker lmao...anyway took like 15 mins and came out amazing...i did the T tap as you recommended

Saw it in the picture. Makes it so much easier to put thing back to oem when selling.

I know can you believe that a world class vehicle could put a speaker like that in any car.
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2013 S4 Loaded (and NO RFT's) Awesome is an understatement
2008 MT X3 RIP you were a faithful sidekick and will be missed.
2007 AT X3 RIPOS
2005 GC
2000 Jeep Cherokee
1997 Twin Turbo RX-7
1984 GTI Wolfsburg Edition Neuspeed and more
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  #195  
Old 01-28-2012, 11:50 AM
Bufalo Bufalo is offline
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Originally Posted by Wongway View Post
Anyone have any comments on Polk Audio's DB401s for the door speakers? Compared to the Alpine SPS-400s?
I know this is from the first page almost 2 years ago, but I can say that with a little adjustment to the stock tweeter mounts, DB401s will basically drop in and sound fantastic. Stage 1 complete, on to stage two and three.
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  #196  
Old 02-01-2012, 06:11 AM
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gzep23 gzep23 is offline
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whats stage 2 and three?

really wanna replace the subs under the seats...is that the other stage?
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  #197  
Old 02-01-2012, 09:26 AM
bruce325xi bruce325xi is offline
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UPDATE: The JL C2-400X speakers are now installed in all 4 doors - they fit !
and sound GREAT

http://www.sonicelectronix.com/item_...o-C2-400x.html

Last edited by bruce325xi; 02-01-2012 at 09:27 AM.
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  #198  
Old 02-01-2012, 01:11 PM
deafwish deafwish is offline
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^^^ How loud & clean do they sound from the standard Head Unit - given their average sensitivity (85db)?
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  #199  
Old 02-01-2012, 10:31 PM
alexsih alexsih is offline
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Question on sub and amp

Hi, open question to anyone who can help...

I want to replace the subs with a pair of sws-8xi, which I believe are 2 ohms impedance.
I have an old 5 channel alpine amp (MRV-F353) that I want to deploy.

The 4 channels will naturally drive the 4 door speakers, but the mono 5th channel is rated at 150w at 4 ohm (14.4 V). I am planning on wiring the 2 earthquakes in series to achieve the 4 ohm. Is this advisable? will it get loud enough, I have read here that the 8xi are not that efficient.

Any advise/opinion would be welcome.

alex

Last edited by alexsih; 02-01-2012 at 10:34 PM.
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  #200  
Old 02-01-2012, 10:47 PM
deafwish deafwish is offline
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Wiring up your SWS' in that tiny enclosure will be more of a midbass than a subwoofer - in it's frequency response.
If you can spare the room, get a 10" sub that efficiently works in a tiny enclosure (e.g. Rainbow Hammer in 0.5cu ft nett) and place it in the boot.
The output should be a night & day difference!
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