Closed Thread
Results 1 to 6 of 6

Reload Thread: voltage drop question

  1. #1
    Join Date
    May 2004
    Location
    Winnipeg, Canada
    Posts
    125
    Post Thanks / Like
    Mentioned
    0 Post(s)

    voltage drop question

    I recently just acquired my 2 12'' Adire Shiva MkIV and noticed a problem when I finally got them hooked up.

    It seems I have quite a bit of voltage drop at high volume and long bass lines.
    I took my car to an alternator shop to see if it was the problem, and we did a bit of voltage testing while it was playing.

    When we tested at the amp, the voltage would bounce from 14.x to low 13's and even high 12's.

    Im kinda pissed about this because without 14.4 V my amp wont achieve its dynamic power of 775wrms @ 2ohms. (MTX Thunder6500D amplifier)

    Anyone got some suggestions as to help fix/reduce my voltage drop without a new alternator or battery?







  2. #2
    Puggsley456's Avatar
    Puggsley456 is offline Who said you could talk?



    Join Date
    Apr 2003
    Location
    WPG>MB>CAN
    Posts
    479
    Post Thanks / Like
    Images
    5
    Mentioned
    0 Post(s)

    Re: voltage drop question

    What kind of car is it? Because with mine even after the big 3 upgrade I had a noticeable voltage drop. With some cars it cant be avoided. But try what JMAC said its where you need to start.



    - 99 Cougar -
    - Rainbow CMX265 Kickbass - PG ti600.2 -
    - Mach 5 Audio (2) IXL12's in 3.2 cubes net@ 33hz - USAmps MD.1D -

  3. #3
    superdooperman's Avatar
    superdooperman is offline Member

    Threadstarter


    Join Date
    May 2004
    Location
    Winnipeg, Canada
    Posts
    125
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: voltage drop question

    Quote Originally Posted by Jmac
    Upgrade the Big 3 ...

    Battery to chassis
    Battery to alternator
    Alternator to chassis
    Ya, i heard about doing this. Again, I asked the alternator shop and he said my battery to chassis is fine (2 awg and its really short), but the battery to alternator is really long, and seems kinda thin.

    Can I just go directly from my battery to alternator? Its like no more then a foot away from my battery, yet the wire for it goes all over the place first. Can I just add on another wire, or do I have to remove the previous one? Also, what AWG would you recommend?

    The can is a 1990 Honda Accord.




  4. #4
    Puggsley456's Avatar
    Puggsley456 is offline Who said you could talk?



    Join Date
    Apr 2003
    Location
    WPG>MB>CAN
    Posts
    479
    Post Thanks / Like
    Images
    5
    Mentioned
    0 Post(s)

    Re: voltage drop question

    Quote Originally Posted by Jmac
    You can just add another wire ... Fuse it
    ^X2

    but dont replace what you now have! Add in addition to it. The current should take the path of least resistance.



    - 99 Cougar -
    - Rainbow CMX265 Kickbass - PG ti600.2 -
    - Mach 5 Audio (2) IXL12's in 3.2 cubes net@ 33hz - USAmps MD.1D -

  5. #5
    superdooperman's Avatar
    superdooperman is offline Member

    Threadstarter


    Join Date
    May 2004
    Location
    Winnipeg, Canada
    Posts
    125
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: voltage drop question

    Quote Originally Posted by Puggsley456
    ^X2

    but dont replace what you now have! Add in addition to it. The current should take the path of least resistance.

    thx for the info guys. What gauge wire would be recommended?

    and puggsley, keep reppin the wpg, mb. I am from there as well.




  6. #6
    sumone's Avatar
    sumone is offline CarAudio.com Veteran



    Join Date
    Dec 2003
    Location
    Midwest
    Posts
    3,416
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: voltage drop question

    I did my big3 with 1/0ga....

    even though I'm only running about 620watts rms...



    best sig of all time

Closed Thread

Similar Threads

  1. pre-amp voltage ... question!!! need better understanding :)
    By 97JeepTJ in forum General Discussion
    Replies: 2
    Last Post: 04-26-2004, 07:39 PM
  2. Voltage
    By BMG in forum General Discussion
    Replies: 2
    Last Post: 04-24-2004, 11:18 AM
  3. voltage drop = clipping?
    By Strecker25 in forum Amplifiers
    Replies: 0
    Last Post: 04-05-2004, 09:34 PM
  4. Bass hits, voltage drops, how much is ok
    By scottrc5391 in forum General Discussion
    Replies: 16
    Last Post: 01-25-2004, 06:25 PM
  5. N00b to forum...blue top/cap. voltage question
    By autoteks500 in forum General Discussion
    Replies: 4
    Last Post: 08-17-2003, 09:16 PM

Posting Permissions

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

1e2 Forum