BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      03-07-2012, 09:50 AM   #1
pzanity
New Member
8
Rep
27
Posts

Drives: BMW 1 series coupe Msport 2010
Join Date: Jan 2012
Location: Uk

iTrader: (0)

SWS-8 2ohm OR 4ohm

Hey guys, so i decided to go for a pair of SWS-8 earthquakes for the underseats.

Heres what i have right now... Base audio 2010 system, JL Audio Cleansweep (to get flat clean signal)

AMP: JL Audio XD400 / 4

Front components: Morel Hybrid Ovation II.
Rear: stock (running off head unit still).
underseats: stock

Im in major need of THUMPY mid bass, everything sounds so echoey inside, and i know its cause the lack of midbass.

Heres my question, taking into account the amp im using, and the components i have, which would be best for my setup? sws-8 4ohm or 2ohm?

From what ive read, the hybrid ovation ii are 4ohm load, i have 4 channels on the amp which can run 75w x 4 @ 4ohm, or 100w x 4 @ 2 ohm.

Im going to run each sws off seperate channels. (the components are already run off seperate channels too)

Which would be best?
Appreciate 0
      03-07-2012, 05:33 PM   #2
pzanity
New Member
8
Rep
27
Posts

Drives: BMW 1 series coupe Msport 2010
Join Date: Jan 2012
Location: Uk

iTrader: (0)

80 views.. no replys :-( someone come on!

thanks
Appreciate 0
      03-08-2012, 01:16 AM   #3
Turbolader
The Fat Stig
Turbolader's Avatar
11
Rep
274
Posts

Drives: 2010 135i
Join Date: Dec 2010
Location: 2003 Stg 3+ SRT-4

iTrader: (1)

This may or may not help you, but I run them at 4-ohms at 75 watts with my Alpine amp and they are plenty loud for me. I actually have my sensitivity turned down well below halfway, and I am running my head unit at -3 to -7 on the bass. Granted, I have a very dirty signal because of the crap-q that BMW does on the base units that you're scrubbing with your cleansweep.

I'm guessing that your JL is going to be closer to an actual 75 watts than my Alpine, and thus may be even louder/punchier. Granted, I listen to a genre closest to modern rock, so they are not overly bass heavy, but the drums and bass guitar notes sound quite nice to me. As a matter of fact, I'm not running any "real" subwoofers at all, requiring the SWS8's to fill that as well and I'm very happy with the way it sounds. I don't think that it would cut it if I listened to bass discs or rap, but caveat emptor.
__________________
Appreciate 0
      03-08-2012, 05:45 AM   #4
pzanity
New Member
8
Rep
27
Posts

Drives: BMW 1 series coupe Msport 2010
Join Date: Jan 2012
Location: Uk

iTrader: (0)

Thanks a lot turbo! Really helped me out!

I would still get more power from the 2ohm though right? Or does that amp need each channel to have 4 x 2ohm load and not 2 x 4ohm and 2 x 2ohm

Cheers
Appreciate 0
      03-08-2012, 10:36 PM   #5
Turbolader
The Fat Stig
Turbolader's Avatar
11
Rep
274
Posts

Drives: 2010 135i
Join Date: Dec 2010
Location: 2003 Stg 3+ SRT-4

iTrader: (1)

I don't know if your amp can handle a split 4/2 ohm load, however if it can, then yeah your amp is going to make more power at 2-ohms than at 4-ohms.
__________________
Appreciate 0
      03-08-2012, 11:57 PM   #6
taibanl
Brigadier General
taibanl's Avatar
281
Rep
4,121
Posts

Drives: BMW
Join Date: Sep 2010
Location: NA

iTrader: (4)

2ohm should be 3dB louder all other things being equal
Appreciate 0
      03-08-2012, 11:57 PM   #7
taibanl
Brigadier General
taibanl's Avatar
281
Rep
4,121
Posts

Drives: BMW
Join Date: Sep 2010
Location: NA

iTrader: (4)

Quote:
Originally Posted by pzanity
Thanks a lot turbo! Really helped me out!

I would still get more power from the 2ohm though right? Or does that amp need each channel to have 4 x 2ohm load and not 2 x 4ohm and 2 x 2ohm

Cheers
Not a problem
Appreciate 0
Post Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 12:39 PM.




1addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST