I need help from some really smart electronics people

Discussion in 'Archived Threads 2001-2004' started by Earl Simpson, Mar 31, 2002.

  1. Earl Simpson

    Earl Simpson Supporting Actor

    Joined:
    Jan 12, 2002
    Messages:
    803
    Likes Received:
    0
    Trophy Points:
    0
    I have 10 books laying on the floor and I can not find my speaker ohm calculation formulas for calculating ohms in series and parallel with speakers of different ohms . Help!!! Never mind, I found it. I can't read. What's new????//[​IMG]
    Hey! I noticed 78 people read this post. That means we should have 78 posts on the boot camp thread.[​IMG]
     
  2. Stephen Houdek

    Stephen Houdek Second Unit

    Joined:
    Jan 21, 2002
    Messages:
    326
    Likes Received:
    0
    Trophy Points:
    0
    Real Name:
    S
    Resistance in series is additive. In parallel it is done per branch of parallel resistance.

    IE: in a simple two branch parallel resistive circuit:

    Rt= 1/(1/R1)+(1/R2)

    Hope this helps.
     
  3. Stephen Houdek

    Stephen Houdek Second Unit

    Joined:
    Jan 21, 2002
    Messages:
    326
    Likes Received:
    0
    Trophy Points:
    0
    Real Name:
    S
    Just thought of a better example. Lets say you wire a total of five 8 ohm speakers in parallel.....Your total resistance is going to be 1.6 ohms assuming my late night math skills are up to par.

    No genius involed with this..........This is the most basic of basic.
     
  4. Earl Simpson

    Earl Simpson Supporting Actor

    Joined:
    Jan 12, 2002
    Messages:
    803
    Likes Received:
    0
    Trophy Points:
    0
    Hey, Stephen, Go to the basics thread and do a post. We need you!!!!!!!
     
  5. Earl Simpson

    Earl Simpson Supporting Actor

    Joined:
    Jan 12, 2002
    Messages:
    803
    Likes Received:
    0
    Trophy Points:
    0
    We need a post in the basics thread on magna planner speakers. How they are designed and how they work!!![​IMG]
     
  6. Sankar

    Sankar Second Unit

    Joined:
    Aug 1, 1999
    Messages:
    315
    Likes Received:
    0
    Trophy Points:
    0
    Stephen has aptly described the relationships. Resistance in series is additive:

    Rt = R1 + R2 + R3 + ....

    If they are in parallel, you just take the reciprocals

    (1/Rt) = (1/R1) + (1/R2) + (1/R3) + ....

    Hence, in his example of five 8 ohms speakers in parallel:

    (1/Rt) = 5 * (1/8) = 5/8 => Rt = 8/5 = 1.6 ohms
     
  7. Larry B

    Larry B Screenwriter

    Joined:
    Nov 8, 2001
    Messages:
    1,067
    Likes Received:
    0
    Trophy Points:
    0
  8. Earl Simpson

    Earl Simpson Supporting Actor

    Joined:
    Jan 12, 2002
    Messages:
    803
    Likes Received:
    0
    Trophy Points:
    0
    Thanks for the link Larry!!!! You guys, need to add to the goat rope in the basics thread if you havn't already.

    Go check out my post on speakers and OHMS with links.
     
  9. DaveF

    DaveF Moderator
    Moderator

    Joined:
    Mar 4, 2001
    Messages:
    18,840
    Likes Received:
    1,858
    Trophy Points:
    9,110
    Location:
    One Loudoun, Ashburn, VA
    Real Name:
    David Fischer
     
  10. Earl Simpson

    Earl Simpson Supporting Actor

    Joined:
    Jan 12, 2002
    Messages:
    803
    Likes Received:
    0
    Trophy Points:
    0
    Dave, Your as bad as me! I added to the post, that I was blind in one eye and couldn't see out of the other. I found it when I turned the page. It is on my post of links at the basic info thread in the pull down menu up top. Thanks guys!!!!
     
  11. Larry B

    Larry B Screenwriter

    Joined:
    Nov 8, 2001
    Messages:
    1,067
    Likes Received:
    0
    Trophy Points:
    0
    Earl:

     
  12. Larry B

    Larry B Screenwriter

    Joined:
    Nov 8, 2001
    Messages:
    1,067
    Likes Received:
    0
    Trophy Points:
    0
  13. Earl Simpson

    Earl Simpson Supporting Actor

    Joined:
    Jan 12, 2002
    Messages:
    803
    Likes Received:
    0
    Trophy Points:
    0
    Thanks again! These have been added to my contribution in the basics area, which is in its infancy on my part. Maybe my post will evolve into something more substantial.
     

Share This Page