Closed Thread
Results 1 to 3 of 3

Reload Thread: more questions on decibals and watts

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



    Join Date
    Dec 2001
    Location
    Sullivan, Illinois
    Posts
    109
    Post Thanks / Like
    Mentioned
    0 Post(s)

    more questions on decibals and watts

    if i have a 300 watt sub that has a sensitivity of 87 dB and a 1000 watt sub with a sensitivity of 85 dB, the 300 wat sub would be louder? and what do watts actually do? does a dual voice coil effect any of this and how?

    thanks,
    matt







  2. #2
    Join Date
    Jan 2002
    Location
    Boise, Idaho
    Age
    44
    Posts
    136
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Sensativity will help you understand how much power is necessary to achieve a certain decibel. If you start with a sub that has 87 db sensativity (at 1 watt/1 meter) then to double the sound, 90 db, you would need to double the power, 2 watts. Then to get to 93 db, you would need 4 watts, 96 needs 8 watts, 99 needs 16 watts, 102 needs 32, and you come up with 111 db with 256 watts. If you do the same thing with a sub with a sensativity of 85 db, you will see that the sub that can handle 1,000 watts will play to 115 db with 1004 watts. So, with a 3 db difference, the 1,000 watt sub potentially will play twice as loud. Now this is all on paper, enclosures, amplifier quality, and vehicle will all change these two aspects. the 93 db sub in a good ported box in the back of a tahoe will sound louder than the 85 db sub in a sealed box behind the seat of a pick-up. Hope this helped.




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

    Threadstarter


    Join Date
    Dec 2001
    Location
    Sullivan, Illinois
    Posts
    109
    Post Thanks / Like
    Mentioned
    0 Post(s)
    sure did, thanks a lot.

    matt




Closed Thread

Similar Threads

  1. Few more questions regarding box build,subs,and pre-fab box
    By Big GeRm in forum General Discussion
    Replies: 4
    Last Post: 05-27-2010, 02:01 AM
  2. Replies: 13
    Last Post: 06-29-2009, 06:32 PM
  3. Replies: 7
    Last Post: 01-10-2008, 11:09 AM
  4. Where can i buy a diode isolator? and a couple more questions!
    By APitBullT in forum Wiring, Electrical and Installation Help
    Replies: 1
    Last Post: 04-22-2005, 12:01 AM
  5. Replies: 3
    Last Post: 01-07-2002, 04:21 PM

Posting Permissions

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

1e2 Forum