Closed Thread
Results 1 to 7 of 7

Reload Thread: box sounds weird

  1. #1
    cockeyed00's Avatar
    cockeyed00 is offline Senior VIP Member



    Join Date
    Jan 2003
    Location
    Antioch, CA
    Posts
    272
    Post Thanks / Like
    Images
    2
    Mentioned
    0 Post(s)

    box sounds weird

    I made a custom box behind my rearseats for my 02 f250 crew cab and when I have the box in there without the seat it sound like some boston acoustic 6x9s. But when the seat is there resting against the subs it hits pretty hard. The box is not divided, should I divide the box and make it 2 chambers? I am running 2 10" punch z's with a 400 watt amp.

    thanks.
    Jon







  2. #2
    buster's Avatar
    buster is offline Senior VIP Member



    Join Date
    Dec 2002
    Location
    Dallas, TX
    Posts
    150
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Dividing it won't make much difference. The only things it will help is act as bracing and make the box more rigid (=less flex) and it'll help in the case if one speaker blows, it won't bring the other down with it. I think it sounds much different without the seat because that is a big cab, kind of like listening to the subs on a display wall in the store firing out into open air.




  3. #3
    evo2k3's Avatar
    evo2k3 is offline Senior Bizznitch



    Join Date
    Dec 2002
    Location
    Chicago
    Posts
    1,057
    Post Thanks / Like
    Mentioned
    0 Post(s)
    he hit on it.....bracing is PROBABLY the key, what are the dimensions of the box (namley the size of the side up against the seat)? What is the box built out of? Unless that side is huge, I cannot see that tiny amp being able to drive those subs hard enough to flex 3/4 mdf.....so whats it made out of?




  4. #4
    cockeyed00's Avatar
    cockeyed00 is offline Senior VIP Member

    Threadstarter


    Join Date
    Jan 2003
    Location
    Antioch, CA
    Posts
    272
    Post Thanks / Like
    Images
    2
    Mentioned
    0 Post(s)
    The box is :

    7"
    ____





    18"



    10"
    ________

    7" top
    18" long
    10" bottom

    made out of mdf

    thanks
    Jon




  5. #5
    ftgu's Avatar
    ftgu is offline Class"A"********



    Join Date
    Dec 2002
    Location
    another screwed up city in PA
    Age
    39
    Posts
    444
    Post Thanks / Like
    Mentioned
    0 Post(s)
    You arent running enough power to make the box flex. it sounds good with the seat on simply because it is a small sealed box and with those subs on that amount of power, you need to eliminate as much air space as possible in front of the sub.( the sub fires up, right?) I have found that in trucks, if you want a small sealed box, build a DOWN-FIRING box (like they make some home theater subs) it works great.



    "It's all fun & games 'till someone loses an ear drum."

  6. #6
    evo2k3's Avatar
    evo2k3 is offline Senior Bizznitch



    Join Date
    Dec 2002
    Location
    Chicago
    Posts
    1,057
    Post Thanks / Like
    Mentioned
    0 Post(s)
    if for some reason you made it out of 1/2 " mdf it might flex....3/4 would not....the air space around the cone is not a really sound technical explaination, but if thats your expierience than i will take your word for it.




  7. #7
    cockeyed00's Avatar
    cockeyed00 is offline Senior VIP Member

    Threadstarter


    Join Date
    Jan 2003
    Location
    Antioch, CA
    Posts
    272
    Post Thanks / Like
    Images
    2
    Mentioned
    0 Post(s)
    question popped up again. I had a regular 14 deep by 12 wide and 13 high 10" box sitting on the back seat of my truck. It was hitting pretty good. then when I made the box for behind my seat, I tried it out without the seat first and it sounded like crap. The one sub in the other box sounded better than the two, why? Is it because the behind the seat box is more shallow and wider?
    thanks
    Jon




Closed Thread

Posting Permissions

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

1e2 Forum