Equalization - diyAudio
Go Back   Home > Forums > General Interest > Car Audio

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 26th August 2007, 07:26 PM   #1
diyAudio Member
 
Join Date: Jan 2004
Default Equalization

Hi there,

I need some advice. In order to flatten the low frequency response in a car, what are my options ?

Are there any parametric equalizers used in cars ?

I am getting a parametric EQ for home use called the Velodyne SMS-1 tommorrow which I've been told is exceptional. But now I need something for the car. The way I see it, if there is a big peak at 60 hz or any specific frequency, it could be problematic.

So what do you guys do in this case ? It's not as if there are cabin acoustic treatments, right ? If you want a nice relatively flat response where the bass is not predominently boomy because certain frequencies are overpowering others, I have to assume that parametric EQ or something similar is the means to do this.

What are your thoughts ?

--Regards,
  Reply With Quote
Old 26th August 2007, 08:58 PM   #2
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
If there is a sharp peak, the box may be too small for the woofer or, if it's ported, the port tuning frequency may be too high.
  Reply With Quote
Old 26th August 2007, 09:11 PM   #3
diyAudio Member
 
Join Date: Jan 2004
For those who don't use big enclosures but would like a small form factor, are there ways of smoothing the response with EQ ?

--Regards,
  Reply With Quote
Old 26th August 2007, 09:30 PM   #4
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
You can smooth the response with an EQ but it's better to get the enclosure right. There are speakers designed to work in small enclosures. The correct speaker/enclosure combination may be a less expensive alternative than a parametric EQ.
  Reply With Quote
Old 26th August 2007, 10:28 PM   #5
diyAudio Member
 
Join Date: Jan 2004
The problem is that I'm not sure that the installers would be able to build the correct enclosure size. If I go to a car audio shop and purchase two 12" Pioneer DVC-12's (obviously there will be an enclosure size that is appropriate for those drivers) the technicians don't have custom made enclosures.

They've just got enclosures designed for 12 " or dual 12" drivers. That isn't ideal because the T/S parameters will vary from driver to driver. And I'm not handy with a saw.

This is why I mentioned EQ.

--Regards,
  Reply With Quote
Old 27th August 2007, 08:55 AM   #6
diyAudio Member
 
theAnonymous1's Avatar
 
Join Date: Feb 2004
Location: Anonymityville
If your box is sealed I suggest a linkwitz transform.
  Reply With Quote
Old 27th August 2007, 05:33 PM   #7
diyAudio Member
 
Join Date: Jan 2004
Okay, besides a linkwitz transform ( ) and besides having the enclosure built perfectly for a given driver, what other alternatives do I have to flatten the response and get rid of overwhelming boom ?

Is there a way to calibrate the bass from the subwoofer to integrate with the mains ?

--Regards,
  Reply With Quote

Reply


Hide this!Advertise here!
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
78 equalization? Justinasia Analogue Source 12 22nd September 2012 03:02 AM
Using PC's for adaptive equalization drewm1980 Digital Source 35 3rd January 2007 12:28 PM
active equalization help downward_dog Digital Source 0 3rd June 2005 12:19 AM
Active/Room Equalization sdclc126 Multi-Way 6 24th January 2005 10:13 PM
Shelving Equalization for Subwoofer Ignite Solid State 0 8th November 2001 09:24 AM


New To Site? Need Help?

All times are GMT. The time now is 11:37 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2