Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

I need some insight from a speaker expert

  1. Nov 12, 2016 #1
    Lately I have had the opportunity to experiment with a number of new and vintage guitar amp speakers. I was generally aware that different speakers sounded different.

    What I was not prepared for was the truly huge and amazing difference the various speakers made in not only sound but how they reacted to the guitar. The same amp and same guitar sounded and reacted so differently to the different speakers I am a bit baffled how that is even possible.

    At high gain levels placing the guitar facing and near a speaker will normally produce sustained feedback of a type rock guitarist find useful.

    How for example would one 12 inch guitar speaker cause a very pronounced feedback and other similar speaker produce little or no feedback at the same gain level?

    Thanks,

    Billy
     
  2. jcsd
  3. Nov 12, 2016 #2

    Bystander

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    2016 Award

    Factor one, of many, phase shift.
     
  4. Nov 12, 2016 #3
    Thanks, I will look into the phase shift parameters. What do you consider the next most important factor?

    One of the issues is that frequently, exact specifications for a perticular speaker are not avalable to me. I am sure I have a large learning curve ahead of me.

    Thanks,

    Billy
     
  5. Nov 12, 2016 #4

    Baluncore

    User Avatar
    Science Advisor

    The audio characteristics of the room, and the ears of the listener make the biggest difference.

    One big difference over the years is speaker damping. Speakers were once efficient, now speakers are over-damped to give them a flat response, independent of the housing used. A significant part of the guitar amplifier feedback scream was at the speaker resonance.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: I need some insight from a speaker expert
  1. Need expert opinions (Replies: 8)

Loading...