Closed Thread
Results 1 to 8 of 8

Reload Thread: Mounting subs upside down.

  1. #1
    1BadHawk's Avatar
    1BadHawk is offline Member



    Join Date
    Oct 2002
    Location
    Here
    Age
    45
    Posts
    100
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Mounting subs upside down.

    Ive seen subs mounted upside down. Is there a benefit to this? What effects does this produce? more or less bass? and can any sub be mounted this way or does it have to be designed for use in this manner.


    One other thing. Im planning on building a custom a box for my Trans Am to cover the rear hatchback cubby. Ill be puting in two 12's when I get them. Does the size of the box make a difference on the sound the subs will produce and if so is there an optimum size? how do I find out what size I should make it.







  2. #2
    marcopolo's Avatar
    marcopolo is offline Member



    Join Date
    Apr 2002
    Location
    Slovenia, Central Europe
    Age
    32
    Posts
    74
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)
    It is really not that important how the subs are positioned. There is no special benefit from them if they are turned upside down - everybody would do that, if there was some advantage! It is just one of the possibilities how to mount the sub - in many home sound systems there are so called "down-firing" subs, which are turned towards the floor and make the floor shake more - maybe it's a good feeling when watching a movie.

    And, yes, the size of the box MATTERS!! In fact, almost everything depends on the size of the box. If you're planning to build a sealed enclosure than the volume is not so much important as it is with ported (and bandpass) systems. When building a ported box, pay attention to the size and the lenght of the port also.

    To find out what size of the box you need, you have to now exactly what sub will you be running and all the technical data about it, put it in a box desig program (i.e. WinISD) and it will calculate it for you. If you have no experience with that, maybe some more experienced member will calculate it for you.

    Good luck!



    - Pioneer DEH-5500MP
    - Magnat Xtrema 216 components
    - macAudio aluminium 12" sub
    - Phase Linear 1.2kW amp

  3. #3
    1BadHawk's Avatar
    1BadHawk is offline Member

    Threadstarter


    Join Date
    Oct 2002
    Location
    Here
    Age
    45
    Posts
    100
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)
    I think Im going to go with two twelve inch Pioneer TS-W304DVC's

    You mention WinISD is this a program that calculates the box size and where can I get it?




  4. #4
    marcopolo's Avatar
    marcopolo is offline Member



    Join Date
    Apr 2002
    Location
    Slovenia, Central Europe
    Age
    32
    Posts
    74
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)

    Icon14

    Yes, WinISD calculates the size of the box you'll need. It can calculate the box for 2 drivers too, since you're planning to have two pioneers. But you should run them BRIDGED from the amp, if they will be sharing the same room in the box. If you're gonna have like one of them on the right and the other on the left chanel, than you should separate the space for each sub (because they won't be getting the exactly same signal and that can cause a minor cancelation at some situations).
    You can get WinISD on www.linearteam.dk/winisd.html

    C ya!



    - Pioneer DEH-5500MP
    - Magnat Xtrema 216 components
    - macAudio aluminium 12" sub
    - Phase Linear 1.2kW amp

  5. #5
    fantomas's Avatar
    fantomas is offline show her the oh face



    Join Date
    Apr 2002
    Location
    CT
    Age
    29
    Posts
    980
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    4 Post(s)
    if you mount the sub so that the driver is on the outside, you wont have to build quite as big of a box as you would have if they were mounted "normally". It wont make too much of a difference unless you are very tight on space and need that extra .5 cf (or whatever) of space. one other advantage is that the driver will run a little more cooler being on the outside due to air circulation.
    other than that, sometimes seeing the magnet is more visually apealing than not.
    -scott




  6. #6
    LoneRanger's Avatar
    LoneRanger is offline Old Yamahas Give Me Wood



    Join Date
    Dec 2001
    Location
    Wellston, Ohio
    Age
    32
    Posts
    1,379
    Post Thanks / Like
    Images
    10
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)
    audiobahns look better inverted......hiding the chrome should be against the law

    actually, you can lose a couple tenths in a ported enclosure by inverting the sub....doesn't make sense to me either, but i've experimented and found it to be true.

    i can't believe that nobody has said this yet, but if you invert your sub, make sure you reverse the polairity of the sub to keep it in phase....when the sub is backwards, it needs to pull, not push to sound right.



    "There is no 'I' in Tag Team"

    Project 'rex: Coming Soon to An Eardrum Near You

  7. #7
    ss3079's Avatar
    ss3079 is offline Eh Dere Hi Dere Ho-ser



    Join Date
    Mar 2002
    Location
    Up North
    Posts
    22,571
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    0 Post(s)
    Originally posted by LoneRanger
    i can't believe that nobody has said this yet, but if you invert your sub, make sure you reverse the polairity of the sub to keep it in phase....when the sub is backwards, it needs to pull, not push to sound right.
    Damit you beat me to it....

    - Steve



    Moderator

    2007 Chrysler 300C

    2005 Chevrolet Silverado 2500HD Crew Cab
    Optima, Volant, Bully Dog, Corsa, Gibson, Powermaster, California Super Trucks, Fox Racing, Airaid
    Alpine 7998, Alpine HDA-5460, Arc Audio MEQ-30, (2) Adire Audio Shiva, Image Dynamics CD-2COMP, Image Dynamics CX64, (2) Image Dynamics ID8V.2, Arc Audio 2100CXL, Arc Audio 4150CXL, Arc Audio 1500D-R

    2006 Kawasaki Ninja ZX14
    Quote Originally Posted by DJGTSR
    I dont mean to be rude, but what is the highest level of education that you finished?

  8. #8
    fantomas's Avatar
    fantomas is offline show her the oh face



    Join Date
    Apr 2002
    Location
    CT
    Age
    29
    Posts
    980
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    4 Post(s)
    Originally posted by LoneRanger
    audiobahns look better inverted......hiding the chrome should be against the law
    thats exactly what i was thinking...couldn't think of the model number of the one with the flames, but here it is: (aw1208q)
    http://www.cardiscountstereos.com/Ca...ct+%23=aw1208q
    I wouldnt mind just having that sub as a centerpiece on my dining room table......


    i can't believe that nobody has said this yet, but if you invert your sub, make sure you reverse the polairity of the sub to keep it in phase....when the sub is backwards, it needs to pull, not push to sound right.
    i forgot to mention that part, but you know, thats why you guys are here...to remind us of all the details. -scott




Closed Thread

User Tag List

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may post attachments
  • You may edit your posts
1e2 Forum