Custom Sub Enclosure For 2000 Deville Help
Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds / (Old System)

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

CadillacForums.com is the premier Cadillac Forum on the internet. Registered Users do not see the above ads.
+ Reply to Thread
Results 1 to 8 of 8
Cadillac Audio, Video and Security Systems Discussion, Custom Sub Enclosure For 2000 Deville Help in Item Specific Cadillac Discussion; Im thinking about building a custom enclosure for my 2000 deville. I have seen it done and it seems easy ...
  1. #1
    cadillac_pimpz's Avatar
    cadillac_pimpz is offline Cadillac Owners Fanatic
    Automobile(s): Custom 2005 Cadillac Deville, Pimp Edition
    Join Date
    Mar 2007
    Location
    Dallas, TX
    Age
    25
    Posts
    275

    Custom Sub Enclosure For 2000 Deville Help

    Im thinking about building a custom enclosure for my 2000 deville. I have seen it done and it seems easy enough. hahaha What I want to do is have 2 15" subs in the middle and have the sides curved or at an angle with 2 inverted 12" subs. no ports. any advise? any reason why I can't do this? My dad can help me build this, we can get all the materials and are good with woodwork.

  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    GizmoQ's Avatar
    GizmoQ is offline The Last Good Gremlin
    Automobile(s): 06 XLR-V and 96 Eldorado ESC-V -- One day ;)
    Join Date
    Mar 2007
    Location
    St Louis, MO
    Posts
    2,631

    Re: Custom Sub Enclosure For 2000 Deville Help

    Are you going to be running active EQ? Without tuned ports, it all gonna rely on the box build otherwise, and SQL tuning of the two different sizes is not going to be easy. What have you got planned for the rest of the system?

  4. #3
    cadillac_pimpz's Avatar
    cadillac_pimpz is offline Cadillac Owners Fanatic
    Automobile(s): Custom 2005 Cadillac Deville, Pimp Edition
    Join Date
    Mar 2007
    Location
    Dallas, TX
    Age
    25
    Posts
    275

    Re: Custom Sub Enclosure For 2000 Deville Help

    Quote Originally Posted by GizmoQ View Post
    Are you going to be running active EQ? Without tuned ports, it all gonna rely on the box build otherwise, and SQL tuning of the two different sizes is not going to be easy. What have you got planned for the rest of the system?
    huh? I don't know what your talking about. so thats prolly not good. btw, how do you mount inverted subs?

  5. #4
    GizmoQ's Avatar
    GizmoQ is offline The Last Good Gremlin
    Automobile(s): 06 XLR-V and 96 Eldorado ESC-V -- One day ;)
    Join Date
    Mar 2007
    Location
    St Louis, MO
    Posts
    2,631

    Re: Custom Sub Enclosure For 2000 Deville Help

    Quote Originally Posted by cadillac_pimpz View Post
    huh? I don't know what your talking about. so thats prolly not good. btw, how do you mount inverted subs?
    Same as otherwise, but with the butt out.

    You never said whether your goal was volume (SPL) or clarity (SQL). I asked about the rest of your system????

    O.K. I'm no good explaining this stuff (I just crunch the numbers), but each sub is designed for a specifically sized amp and box to achieve maximum performance at a given frequency. Changing the box size changes the optimal frequency. Change it too much from the designed parameters reduced the efficiency of the speaker, i.e., lower volume and less range. Porting the box changes the optimal frequency and the velocity of the speaker response. In a perfect world, 15" subs will give deeper, more noticeable sound reproduction of lower frequencies than 12" subs. However, the 12" subs will recover faster keeping the sound from becoming muddy.

    Some reading to get you started:

    Types of subwoofer
    Subwoofer FAQ
    Subwoofer Enclosures
    Subwoofer Enclosure Calculators

  6. #5
    ryansts is offline Cadillac Owners Member
    Automobile(s): Cadillac
    Join Date
    Jan 2008
    Posts
    15

    Re: Custom Sub Enclosure For 2000 Deville Help

    I would just go with the 2 15s. Whenever you start mixing and matching sub sizes you are setting yourself up for a lot of problems. Besides, most subs require a fairly large box to sound there best, so you would lose almost all of your trunk space with 4 subs in there. A couple of decent 15s in a well designed box will give you more than enough bass. Anything more really is unnecessary and it adds weight, complexity, and is rough on your battery/alternator.

  7. #6
    cadillac_pimpz's Avatar
    cadillac_pimpz is offline Cadillac Owners Fanatic
    Automobile(s): Custom 2005 Cadillac Deville, Pimp Edition
    Join Date
    Mar 2007
    Location
    Dallas, TX
    Age
    25
    Posts
    275

    Re: Custom Sub Enclosure For 2000 Deville Help

    Quote Originally Posted by GizmoQ View Post
    Same as otherwise, but with the butt out.

    You never said whether your goal was volume (SPL) or clarity (SQL). I asked about the rest of your system????

    O.K. I'm no good explaining this stuff (I just crunch the numbers), but each sub is designed for a specifically sized amp and box to achieve maximum performance at a given frequency. Changing the box size changes the optimal frequency. Change it too much from the designed parameters reduced the efficiency of the speaker, i.e., lower volume and less range. Porting the box changes the optimal frequency and the velocity of the speaker response. In a perfect world, 15" subs will give deeper, more noticeable sound reproduction of lower frequencies than 12" subs. However, the 12" subs will recover faster keeping the sound from becoming muddy.

    Some reading to get you started:

    Types of subwoofer
    Subwoofer FAQ
    Subwoofer Enclosures
    Subwoofer Enclosure Calculators
    so is mixing the 2 sizes not a good idea, becuase if its not then I will just forget about building a new enclosure. I just got the idea cus I still have the 12's from when I upgraded to 15's.

  8. #7
    GizmoQ's Avatar
    GizmoQ is offline The Last Good Gremlin
    Automobile(s): 06 XLR-V and 96 Eldorado ESC-V -- One day ;)
    Join Date
    Mar 2007
    Location
    St Louis, MO
    Posts
    2,631

    Re: Custom Sub Enclosure For 2000 Deville Help

    Quote Originally Posted by cadillac_pimpz View Post
    so is mixing the 2 sizes not a good idea, becuase if its not then I will just forget about building a new enclosure. I just got the idea cus I still have the 12's from when I upgraded to 15's.
    It depends on what your goals are. If you want show quality, there's a number of ways to do it that would look awesome (but costly ~$1000). If your goal is sound quality, vented 15s and sealed 12s could be tuned to get incredible response from 18-150Hz, but if you're running the standard Bose up front its a waste of time. If you're after louder bass, adding 2 12s is only going to net you a ~20% gain in volume and that's only if the amp/sub combinations are matched at max capacity on all 4 subs.

    Bottom line, my recommendation get a bigger, better, cleaner amp for the 15s you have, tune the amp for the enclosure/subs you already have and be happy.

  9. #8
    cadillac_pimpz's Avatar
    cadillac_pimpz is offline Cadillac Owners Fanatic
    Automobile(s): Custom 2005 Cadillac Deville, Pimp Edition
    Join Date
    Mar 2007
    Location
    Dallas, TX
    Age
    25
    Posts
    275

    Re: Custom Sub Enclosure For 2000 Deville Help

    Quote Originally Posted by GizmoQ View Post
    It depends on what your goals are. If you want show quality, there's a number of ways to do it that would look awesome (but costly ~$1000). If your goal is sound quality, vented 15s and sealed 12s could be tuned to get incredible response from 18-150Hz, but if you're running the standard Bose up front its a waste of time. If you're after louder bass, adding 2 12s is only going to net you a ~20% gain in volume and that's only if the amp/sub combinations are matched at max capacity on all 4 subs.

    Bottom line, my recommendation get a bigger, better, cleaner amp for the 15s you have, tune the amp for the enclosure/subs you already have and be happy.
    I'll just stick with the 15's for now and get back on selling the 12's. I'll probably do a different system with my next car or when this one blows.

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Bookmarks

Cadillac Posting Rules

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
Read about Lincoln | Buick | Kia Forte Forum
Need products for your Cadillac? Check out your options at the links below:

custom floor mats | Cadillac Chrome and Black Chrome Wheels | window tinting