E90Post
 


Bimmer Retrofit
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > Get the most out of OEM Underseat Woofers



Reply
 
Thread Tools Search this Thread
      09-12-2011, 11:36 AM   #1
reddevil12
New Member
0
Rep
25
Posts

 
Drives: 2008 E92 328i
Join Date: Aug 2011
Location: NOVA

iTrader: (1)

Get the most out of OEM Underseat Woofers

I have installed Focal 100 VRS components in the front and a 10inch JL Audio Sub in the trunk but am currently using the OEM underseat subs at the moment. All are being powered by JL Audio XD700/5.

Can anyone suggest the best settings on the amp in order for me to get the best out of the OEM woofers until I upgrade to something else? I currently have the underseat woofers bandpassed on channels 3/4 (highpass is around 200, and lowpass is 80). Also, I have the gain set close to minimum (around 8 o'clock). I currently do not have a voltmeter so I can't set the gain according to the JL Audio manual. Thanks,
Appreciate 0
      09-12-2011, 02:04 PM   #2
VP Electricity
Brigadier General
VP Electricity's Avatar
United_States
70
Rep
3,181
Posts

 
Drives: E91 XDrive
Join Date: Jan 2008
Location: portland oregon

iTrader: (3)

The underseats are not subs. They are woofers. Subwoofers play 50 cycles and below. These need to play much higher to meet the 4" mid. They really don't play sub-bass.

I think you have your settings reversed. Your highpass needs to be around 50, and your lowpass needs to be around 200. Ignore the manual. Turn it until it sounds good.

Your risk is that you might blow those stock HiFi woofers, of course.
__________________
Musicar Northwest - TOP 12 Retailer 2014
OE-Look Enclosures for F30/F80, F32/F82, and more!
Ask about our bolt-in audio upgrades for BMW.
Appreciate 0
      09-12-2011, 03:33 PM   #3
fdriller9
Banned
United_States
101
Rep
7,090
Posts

 
Drives: '06 AW 330xi
Join Date: Mar 2009
Location: North Jersey/Philly/NYC

iTrader: (4)

Garage List
2006 330xi  [3.22]
I have my underseat woofers externally amp'd as well and haven't had any problems with them so far.

Lowpassed around 160hz and high passed around 60hz.
Appreciate 0
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 04:35 PM.




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