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BMW 3-Series (E90 E92) Forum
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"Short review: Custom Earthquake SWS-8 / SWS-8x spacers"
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08-18-2010, 08:34 PM | #89 |
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I'm also trying to get some ideas on prep for the enclosure before dropping them in my car. I see some are wrapping the insides with Dynamat... does that provide any noticeable benefit with the SWS-8?
Has anyone applied foam tape, rubber or silicone sealant around the spacer to ensure the baffle is airtight, and is that worth using once I notch out the spacer to pass wire through? |
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08-18-2010, 09:57 PM | #90 | |||
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Post up what you decide to do!
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08-18-2010, 10:08 PM | #91 |
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ALSO, I have a spare set of spacers in red plastic right now that has a slight imperfection (one of the cuts was off). It doesn't impact fitment AT ALL and they'll still work flawlessly.
If anyone wants these, I'll give them away for the cost of shipping. Unbiased thoughts on the product is always welcome too! First come, first serve via PM only!
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08-18-2010, 10:33 PM | #92 | |
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08-20-2010, 05:37 AM | #94 | |
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So these do fit the XI then?
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08-20-2010, 10:21 AM | #96 |
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08-20-2010, 11:57 AM | #97 |
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Oh yes. It was a bit of a tight fit and the inner diameter is about 1mm smaller than indicated on the mounting template sheet, but they dropped right in and were airtight once I torqued the mounting screws down.
My SWS-8xi subs are brand new in the updated box-- it's predominantly white instead of black and indicates 2ohm on the front of the box. |
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08-20-2010, 01:57 PM | #98 | |
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08-21-2010, 06:03 PM | #99 | |
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SWS-8xi with a black cone Completely unmodified spacer Bam! Fingers. SWS-8xi drops right in and tightens down as-is. |
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08-21-2010, 08:36 PM | #100 |
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Awesome! Good lookin' out, man - I really appreciate it!
And you are correct, the plastic is the only thing that really changes. I think we have red, blue, white and black floating around now. They're currently black and will stay that way for a while.
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08-26-2010, 02:16 AM | #101 |
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Just got my spacers. Thx for the fast shipment. I'll be installing over the weekend. I'm also running the 2ohm version of the sws, so I'll post anything i find while installing them.
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08-27-2010, 02:49 PM | #102 |
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I'm in the process of doing this upgrade but I'm so confused as to what earthquakes to buy??? the sws-8's or Xi's?? Does the impedance matter? Your spacer is designed for the 8's yes but will also fit the xi's, am I correct in saying that?
The reason for impedance question being that I'm getting the bmw alpine speaker upgrade which has an amplifier. This will be used to drive the subs as well and hence am worried I'd buy wrong subs. Please help. JT..I'm in UK and would definitely buy a set of your spacers. Hopefully, some helpful posters can clear up my questions before I do so. Cheers Tiko
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08-27-2010, 03:17 PM | #103 | |
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I recall one thread among UK members who added the Alpine upgrade with SWS-8 subwoofers, but I don't recommend it-- I don't believe the Alpine amplifier will provide enough power to properly drive the SWS-8 subwoofers and you'll be left with a midbass frequency gap. You're best off by swapping out the 6.5" speakers (under the seats) with a pair of OEM Logic7 8" midbass drivers. If you do decide to go with the SWS-8s, impedance won't matter much with the Alpine amp-- it uses Class-D amplification rated for 4-ohm loads. The power rating is somewhat disputed, but it seems as if its output is 40W/channel @ 4ohms. You may get 50W/channel on 2-ohm stereo. |
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08-27-2010, 03:44 PM | #104 |
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Thanks for your post Imperator.
Let me get this right then...the amp powers the bass drivers and mids on 2 channels. The tweeters are also powered but the rears use head unit feed yeah? So basically you can't run the 2 channels alone on amp?? I too have heard that the alpine amp wasn't sufficent and that the blaupunkt equivilant was better but some others say the opposite. More confusion beckons it seems.....
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08-27-2010, 05:52 PM | #106 | |
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I'd imagine most decent class-AB amplifiers with additional power and a better slew rate will sound better than the class-D Alpine amp. The Alpine amplifier takes its input from the front (full-range) high-level channels and splits the front door/tweeters with the subs. It outputs (suspected) 40W X 4, driving the door mids and tweeters on two channels and the subwoofers on the other two channels. The included wiring harness bridges the door speakers and the under-seat subwoofers at the branch-audio connector located under each front seat. |
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08-30-2010, 11:31 AM | #108 |
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I just installed my SWS-8 subs over the weekend in my 2009 E90 M3 using jtsherri's spacer kit. Everything went in very cleanly. Highly recommended!
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09-17-2010, 08:54 AM | #109 |
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SWS-8 Spacers
Got my SWS-8 Spacers from jtsherri recently.Shipping was fast.Great Product,sure saves alot of time and energy not trying to make these myself.Keep up the good work Jason.
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09-22-2010, 09:18 PM | #110 |
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I am interested in a set of spacers. Can you email me at jhorn@crmevolved.com
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