+ Reply to Thread
Results 1 to 15 of 15

Reload Thread: What ohm load is this?

  1. #1
    Shadowborg's Avatar
    Shadowborg is offline Junior Member



    Join Date
    Nov 2017
    Location
    Arlington, TN
    Posts
    6
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    1 Post(s)

    What ohm load is this?

    I cracked open an old mtx thunderform box I had laying around today, and discovered some crazy wiring. Someone put two MTX Thunder 6000 DVC 4ohm subs in it, and wired only one voice coil from each to the outputs on the box. Subs aren't connected to each other. What ohm load would this present to an amp?

    Here's a pic of the back of one of the subs (The other sub is wired the same way):
    https://i.imgur.com/JnYmsbx.jpg

    And here's the back of the output terminal where the wires meet:
    https://i.imgur.com/wU5iWIu.jpg







  2. #2
    shredder1's Avatar
    shredder1 is offline CarAudio.com Elite



    Join Date
    Dec 2013
    Location
    Phoenix, AZ
    Posts
    1,560
    Post Thanks / Like
    Images
    8
    Mentioned
    20 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    718 Post(s)

    Re: What ohm load is this?

    2 ohm load... and yes the subs are connected together at the terminal



    The Budget Beater Blazer Build... Lookin' for those Basshead Problems!

  3. #3
    Shadowborg's Avatar
    Shadowborg is offline Junior Member

    Threadstarter


    Join Date
    Nov 2017
    Location
    Arlington, TN
    Posts
    6
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    1 Post(s)

    Re: What ohm load is this?

    So this would just act like 2 SVC 4 ohm subs wired in parallel? Didnt think you could do that with 2 DVC 4 ohm subs. Most sources act as if you have to use both voice coils and can either have a final impedence of 4 or 1 ohm.




  4. #4
    shredder1's Avatar
    shredder1 is offline CarAudio.com Elite



    Join Date
    Dec 2013
    Location
    Phoenix, AZ
    Posts
    1,560
    Post Thanks / Like
    Images
    8
    Mentioned
    20 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    718 Post(s)

    Re: What ohm load is this?

    Yep... that's about it... I'd check out the unused coils... maybe one is blown... maybe someone was matching loads to a particular amp... needless to say all coils connected to a proper amp would sound best... 4 or 1 ohm final load



    The Budget Beater Blazer Build... Lookin' for those Basshead Problems!

  5. #5
    shredder1's Avatar
    shredder1 is offline CarAudio.com Elite



    Join Date
    Dec 2013
    Location
    Phoenix, AZ
    Posts
    1,560
    Post Thanks / Like
    Images
    8
    Mentioned
    20 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    718 Post(s)

    Re: What ohm load is this?

    All coils connected will increase the power handling to where it was meant to be... also your sensitivity... no brainer



    The Budget Beater Blazer Build... Lookin' for those Basshead Problems!

  6. #6
    Shadowborg's Avatar
    Shadowborg is offline Junior Member

    Threadstarter


    Join Date
    Nov 2017
    Location
    Arlington, TN
    Posts
    6
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    1 Post(s)

    Re: What ohm load is this?

    Do you know if using only one coil will cut the RMS of the subs? They are rated at 250w RMS each. My amp can do 400w RMS @ 4ohms and 600w RMS @ 2ohms. Leaving it at 2 ohms sounds like the way to go, but if the RMS is cut, would I be better off wiring it to 4 ohms?




  7. #7
    shredder1's Avatar
    shredder1 is offline CarAudio.com Elite



    Join Date
    Dec 2013
    Location
    Phoenix, AZ
    Posts
    1,560
    Post Thanks / Like
    Images
    8
    Mentioned
    20 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    718 Post(s)

    Re: What ohm load is this?

    I'd wire it at 4 ohms... the sensitivity will increase... it's still 200w per driver



    The Budget Beater Blazer Build... Lookin' for those Basshead Problems!

  8. #8
    dragon.breath's Avatar
    dragon.breath is offline Senior VIP Member



    Join Date
    Nov 2007
    Location
    new hope al
    Posts
    421
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    89 Post(s)

    Re: What ohm load is this?

    Power handling is reduced when only using one coil of a dvc. The subs will also gain sensitivity when both coils are used ( which means the subs will be louder ). Use all of the coils and wire for 4 ohms.



    digital designs 9512h with cf cap
    sundown saz 3000d at 2 ohms
    meca legal 141.3 db on the headrest with a 34hz tuned daily box

  9. Thanks Shadowborg, shredder1 thanked for this post
  10. #9
    Shadowborg's Avatar
    Shadowborg is offline Junior Member

    Threadstarter


    Join Date
    Nov 2017
    Location
    Arlington, TN
    Posts
    6
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    1 Post(s)

    Re: What ohm load is this?

    Awesome. Thanks guys. Im a noob at this stuff, and the DVC thing kinda threw me for a loop.




  11. #10
    shredder1's Avatar
    shredder1 is offline CarAudio.com Elite



    Join Date
    Dec 2013
    Location
    Phoenix, AZ
    Posts
    1,560
    Post Thanks / Like
    Images
    8
    Mentioned
    20 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    718 Post(s)

    Re: What ohm load is this?

    Just out of pure curiosity... got any pics of the box?... a really efficient box will make those subs come alive on 400w



    The Budget Beater Blazer Build... Lookin' for those Basshead Problems!

  12. #11
    Shadowborg's Avatar
    Shadowborg is offline Junior Member

    Threadstarter


    Join Date
    Nov 2017
    Location
    Arlington, TN
    Posts
    6
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    1 Post(s)

    Re: What ohm load is this?

    Its a thunderform truck box. probably not the greatest but i had it lying around.

    It looks like this:
    https://www.supercrewsound.com/CXP20_-TN.html

    It was in an old truck i had, but I think I'm gonna get another box and put them in my current car.




  13. #12
    shredder1's Avatar
    shredder1 is offline CarAudio.com Elite



    Join Date
    Dec 2013
    Location
    Phoenix, AZ
    Posts
    1,560
    Post Thanks / Like
    Images
    8
    Mentioned
    20 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    718 Post(s)

    Re: What ohm load is this?

    sealed then... I thought so... ported is more efficient... if it goes in your car get one built... those are not bad drivers... on 400 watts they'll do all-right in a ported box... it's subjective though... some people prefer sealed...



    The Budget Beater Blazer Build... Lookin' for those Basshead Problems!

  14. #13
    Shadowborg's Avatar
    Shadowborg is offline Junior Member

    Threadstarter


    Join Date
    Nov 2017
    Location
    Arlington, TN
    Posts
    6
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    1 Post(s)

    Re: What ohm load is this?

    I know ported is louder and more efficient, but I listen to a lot of metal and stuff with fast kick drums. Isn't the rule sealed = tighter and more responsive and ported = louder but sloppier?




  15. Likes shredder1 liked this post
  16. #14
    shredder1's Avatar
    shredder1 is offline CarAudio.com Elite



    Join Date
    Dec 2013
    Location
    Phoenix, AZ
    Posts
    1,560
    Post Thanks / Like
    Images
    8
    Mentioned
    20 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    718 Post(s)

    Re: What ohm load is this?

    Yep... that's the rule...but since your trying to make due with less power... try tuning to 36-38 hz ... remember those are only 10's... 400 watts only... I'd be trying for an efficient box... course that's just me



    The Budget Beater Blazer Build... Lookin' for those Basshead Problems!

  17. #15
    wew lad's Avatar
    wew lad is offline wew lad inc



    Join Date
    Mar 2015
    Location
    Des Moines, IA
    Posts
    4,483
    Post Thanks / Like
    Mentioned
    44 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    2311 Post(s)

    Re: What ohm load is this?

    Quote Originally Posted by Shadowborg View Post
    I know ported is louder and more efficient, but I listen to a lot of metal and stuff with fast kick drums. Isn't the rule sealed = tighter and more responsive and ported = louder but sloppier?
    no, its not the rule.. lol thats a myth thats perpetuated by those who know little about enclosure design

    the "rule" is that a box ported and tuned properly for the vehicle and driver will output more and sound however you want it to.. within reason

    the complication of properly porting a driver for ones needs is what leads people to believe that sealed is better for tight punchy bass... in that case sealed may be better
    Last edited by wew lad; 5 Days Ago at 09:17 PM.



    Quote Originally Posted by JohnKuthe View Post
    I AM The Future of personal transportation, NOW!!
    Quote Originally Posted by Loudz View Post
    Pretty sure everyone on this site hates you (@JohnKuthe) more then me and that's very hard to accomplish.

  18. Thanks shredder1 thanked for this post
    Likes Boomin_tahoe liked this post
+ Reply to Thread

Similar Threads

  1. What ohm load is this?
    By LosIsATool in forum Amplifiers
    Replies: 30
    Last Post: 08-21-2011, 01:28 AM
  2. What ohm load is this?
    By galacticmonkey in forum Wiring, Electrical and Installation Help
    Replies: 28
    Last Post: 12-22-2009, 06:59 PM
  3. Amplifier Ohm load, is this safe?=Help
    By ak49 in forum Amplifiers
    Replies: 13
    Last Post: 06-09-2009, 02:43 PM
  4. What Ohm Load Will This speaker Combo Produce?
    By bones justice in forum Speakers
    Replies: 7
    Last Post: 09-05-2007, 02:07 PM
  5. what ohm load is this?
    By maniackilla in forum General Discussion
    Replies: 2
    Last Post: 10-22-2003, 12:22 PM

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