E90Post
 


GetBMWParts
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > Speakers Upgrade



Reply
 
Thread Tools Search this Thread
      11-29-2010, 09:23 PM   #23
808MGuy
Colonel
 
808MGuy's Avatar
 
Drives: 2009 E90 M3
Join Date: Jun 2008
Location: Oahu, Hawaii

Posts: 2,229
iTrader: (3)

Quote:
Originally Posted by liliceman13300 View Post
Customer service was amazing, the guy who runs the entire company called my cell phone to complete a $40 order.
That's because he basically is the entire company. Good guy though. I've used RAAMat in other installations and had no problems with it.

As far as your other issues with the speaker upgrade, your result was pretty consistent with what would be expected. In this case, you connected a 4 ohm speaker to an amp rated for like 20W @ 2 ohms so you're getting more like 10W @ 4 ohms. OEM speakers are typically very efficient as well so not only did you lose power but also gave up some efficiency as well resulting in non-linear performance.

In the L7 case, you connected a 4 ohm speaker to an amp rated at 7 ohms so the actual power went up due to the lower impedence. While this is typically not good for the amp because of the increased heat it produces, sound wise it probably got better because you upgraded to higher quality speakers, squeezed more power out of the OEM amp but probably went down a bit in the efficiency category (effectively a wash with the increased power from the lower impedence).

Adding an aftermarket amp to power those new components will help out quite a bit.
__________________
09 E90 M3 - Interlagos Blue / Black Novillo / Sycamore Anthracite / Eibach / HRE

808MGuy is offline  
0
Reply With Quote
      11-29-2010, 09:51 PM   #24
liliceman13300
Private First Class
 
liliceman13300's Avatar
 
Drives: 00 cr-v
Join Date: Jan 2010
Location: raleigh, nc

Posts: 176
iTrader: (0)

Quote:
Originally Posted by 808MGuy View Post
Adding an aftermarket amp to power those new components will help out quite a bit.
Really good to hear that, I am really hoping the amp makes a huge difference
__________________
Quote:
Originally Posted by BullowM3 View Post
what are u doing on these forums? you dont even drive a bmw or a respected car so i suggest you take your opinions to another forum. Thank you
liliceman13300 is offline  
0
Reply With Quote
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Forum Jump


All times are GMT -5. The time now is 01:28 AM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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