Ad Widget

Collapse

Announcement

Collapse
No announcement yet.

2x16ohm + 2x80hm, deville 4x10

Collapse
X
Collapse
 
  • Page of 1
  • Filter
  • Time
  • Show
Clear All
new posts
Previous template Next
  • #1

    2x16ohm + 2x80hm, deville 4x10

    hello all,

    hoping I can get a confirm/deny on a question...
    ok, so I have a hot rod deville 4x10. the manual has it able to run 8ohm or 4ohm.

    one of my voice coils is rubbing... so I bought two 16ohm replacements (got a deal)

    so, I figure I wire 1 * 16ohm + 1 * 8ohm in parallel and get 5.33333 ohm
    then wire both sets in series and get 10.66666ohm

    as I understand this will actually lighten the load on my amp and not cause any problems... correct?

    or am I "better off"/ok wiring with two 16 ohm in parallel = 8ohms, two 8 ohm in series (16ohm) then the two sets wired in parallel for 5.33333ohm?
    I think the only problem would be going below 4ohm because less resistance would allow the transformers to run 'hotter' than normal and potentially damage them... do I understand correctly (give it's an over simplification).

    thanks in advance for your advice!
    Last edited by mistermikev; 01-21-2011, 03:19 AM.
    Tags: None
  • #2
    The Devill & Hot Rod Deville both have a primary impedance of a shade over 4Kohms, a 5.55ohm speaker load brings that down to 3K, a 10.66ohm speaker load brings that up to 5.5K...either would appear to be safe enough. Higher impedances tend towards better low and & thickness (all other factors being equal). Your 8ohm speakers will be doing the lion's share of the work, especially if the 16ohms are less efficient.

    You could wire for 5.33ohms and try that on both the 8ohm & 4ohm taps (stick a dummy plug in the "Ext speaker" jack to activate the 4ohm tap), go with what you like the sound of.

    Comment

    • #3
      roger that... so I'd be ok, but not so balanced.
      hmm, well I appreciate the response!

      Comment

      • #4
        As long as the 8ohms are rated for the output of the amp, preferably somewhat over, should be fine regarding reliability ...whether it sounds fine is up to you.

        Comment

        • #5
          right, the amp is 60 watts and the speakers are rated 30 each... I don't gig and have never got it past 3.5 so... I'd be fine there... but the general consensus seems to be that the balance will be all wrong so, I dunno, I'll probably just get some 8ohm replacements and perhaps save these for something else or resell them.
          I only paid $25 for a pair of two celestion g10s with literally 3hrs of play on them... I'd do it again even knowing what I know now!

          Comment

          • #6
            I don't gig and have never got it past 3.5 so... I'd be fine there...
            Well, I bet you are right, you are not in trouble. But if you have some idea that turning the volume to 3 on a 60 watt amp somehow limits your output power to 20 watts, that is wrong. Pick a volume, any volume and play at it. Now turn the volume down one number. Not quite as loud, right? Now play a little louder but leave the controls down. You can make the amp just as loud as it was at the hotter setting by feeding the amp more.

            VOlume controls adjust sensitivity in the amp, NOT its power.


            And don't dwell on balancing the speakers. Let's say they were all 16 ohm, or whatever. If they are different brands or models, they can have widely different efficiency. And if they are different speakers, they will have different voices anyway. In your band, one of the guys may not have as strong a voice as the others, but that doesn;t mean he isn;t heard, doesn;t mean he doesn;t contribute. Try your combinations.
            Education is what you're left with after you have forgotten what you have learned.

            Comment

            • #7
              hmm I did not know that...
              I guess I was thinking of 'blowing the speaker' only in terms of a cone tear.
              If I'm not mistaken, the only danger of that would be at high volume.
              But I was not considering the possibility of a blown voice coil... good point.

              Comment

              • #8
                The voice coil is the only part of it that I DO worry about. Tearing the cone by playing would be quite an achievement, especially with only 30 watts.
                Education is what you're left with after you have forgotten what you have learned.

                Comment

                • #9
                  honestly I can't say that this has ever happened to me but...
                  ever since my first gtr amp - you know the speach: "don't play a bass through it or if you play an octaver or crank on your gtr at top volume you would be moving the speaker a lot and this could lead to a tear... "

                  Comment

                  • #10
                    Oh, I an well imagine some kid making a guitar amp using an old woofer from a stereo speaker. MAny of those used foam surrounds, which rot. A few good riffs and his old stereo speaker fell apart, so he blames it on what he was playing instead of the fact the thing was rotted to start with.
                    Education is what you're left with after you have forgotten what you have learned.

                    Comment

                    • #11
                      I've tried to destroy old speaker cones with excessive power, without much success. But it can be done!
                      YouTube - More bass please?
                      "Enzo, I see that you replied parasitic oscillations. Is that a hypothesis? Or is that your amazing metal band I should check out?"

                      Comment

                      Previous template Next
                      Working...
                      X