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can you change the impedance of a driver with anything?

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  • can you change the impedance of a driver with anything?

    Going through the bag of tricks i have a small lowfi amp, which only can do 4ohm drivers, but have 2 8ohm full rangers.

    any tricks with anything that i can use them but as 4 ohm, without sacrificing either out put from the already low powered amp? ie running in series/parallel

  • #2
    Not in any practical whay that I'm aware of. With DVC drivers it is possible to use different capacitor values across an unused coil to change the Q value.
    Thanks,
    Aaron

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    • #3
      How low power are we talking? If the amp can do 4ohm, it can do 8. Not all amps specifically halve or double the power between 4 and 8 ohms.
      Constructions: Dayton+SB 2-Way v1 | Dayton+SB 2-Way v2 | Fabios (SB Monitors)
      Refurbs: KLH 2 | Rega Ela Mk1

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      • #4
        Use the 2 8 Ohm drivers in parallel.

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        • #5
          Originally posted by DeZZar View Post
          How low power are we talking? If the amp can do 4ohm, it can do 8. Not all amps specifically halve or double the power between 4 and 8 ohms.
          5-6w per channel. its a 6.5v amp to get that power output. The fella told me the amp only does 4 ohms. its a slow boat amp i normally use for my 1s builds.

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          • billfitzmaurice
            billfitzmaurice commented
            Editing a comment
            The fella is wrong. While tube amps have maximum impedance requirements SS have minimum impedance requirements.

          • 3rutu5
            3rutu5 commented
            Editing a comment
            well thats promising, i still only wanted to use the one battery. Only thing i guess is if im expecting 5watts per channel with the 4 ohm's i should halve it for the 8ohm

        • #6
          A horn will increase the impedance (not a waveguide, but a real horn). But that might not be the answer you were looking for ;
          Francis

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          • #7
            I'm trying to be tight and not.buy anything, but at the same time designed something too small for an alternative amp and I don't want to change from the original intentions....lol, such a pain

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            • #8
              Oh, a lot of people build their own horns. Unfortunately, a working horn can't be small...
              Francis

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              • #9
                Yea, not horn Worthy, I'm using 1.5 inch drivers.

                I could design in a decent fold and 3d print it but......would need to fit in a body that is 250x120x50mm and house.2 drivers lol. I'll post it If works but the test for.fhs one.twice.the size that hopefully will come

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                • billfitzmaurice
                  billfitzmaurice commented
                  Editing a comment
                  You should have Hoffman's Iron Law tattooed on your lower left arm, then look at it every time you're about to embark on a new project.

                • 3rutu5
                  3rutu5 commented
                  Editing a comment
                  but dad i wanna all 3....... I get a kick out of designing funky things in CAD and printing lately, the science sometimes goes out the window. I know with these tiny things i cant really expect low bass, but hey they sound good at my desk whilst i work, or even at a bbq playing ambient musi
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