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I need help on selecting the speaker driver

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  • I need help on selecting the speaker driver


    can anyone help me with this headache i am having here. i just finished my first DIY single ended tube amplifier using 6C45 tube. but it only produces 1.3W of power, that's very tiny. with my current system it's showing signs of distortion at higher volume especially at bass region. kind of like a clipping bass, so i figure i need to find a much higher efficiency driver to match this amp. my music liking is balanced, with great imaging and stage. i know due to the nature of this 1.3W amp, i don't think i will get pounding bass that's for sure. so should i go with high efficiency full range driver like fostex? or make a 2 way horn design using PA speakers?? i have around $150 of budget to buy the drivers. thanks

  • #2
    Re: I need help on selecting the speaker driver


    i have around $150 of
    > budget to buy the drivers. thanks

    The Fostex FE166e are the most efficient in your price range. You need a horn box, though. Or the FE167e in a vented box.

    Big spender, BTW...

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    • #3
      Re: I need help on selecting the speaker driver


      I don't mean to be insensitive or critical, but how do you intend to drive anything with 1.3 watts? And to what level? I've been listening to music a very long time, and I can't remember the VU meter on my amp ever registering 1.3 watts and being able to produce anything enjoyable. Certainly not any AC/DC stuff or 1812 on Telarc.

      Hong
      Some people are addicted to Vicodin. I'm addicted to speaker building.

      The Chorales - Usher 8945A/Vifa XT25TG Build
      ESP Project 101 Lateral MOSFET Amplifier
      LM4780 Parallel Chipamp
      Sonata Soundbar Project
      The Renditions - Active/Passive Towers

      Comment


      • #4
        Line Array


        > You need a design that will top 100 db at 1W/M. How low and the impedeance be?

        I don't mean to be insensitive or critical,
        > but how do you intend to drive anything with
        > 1.3 watts? And to what level? I've been
        > listening to music a very long time, and I
        > can't remember the VU meter on my amp ever
        > registering 1.3 watts and being able to
        > produce anything enjoyable. Certainly not
        > any AC/DC stuff or 1812 on Telarc.

        > Hong

        Comment


        • #5
          Acoustic music.


          I
          > can't remember the VU meter on my amp ever
          > registering 1.3 watts and being able to
          > produce ANYTHING ENJOYABLE. Certainly not
          > any AC/DC stuff or 1812 on Telarc.

          Juxtapose "Enjoyable" and "AC/DC", "Tchaikovsky"

          Does...not...compute.

          Kidding. But really, a 94dB speaker will produce...over 94dB with 1.3watts. And that's pretty loud.

          People frequently use 90dBwm speakers with 2 watts. And that calculates to less output. All depends on your expectations. It's fine for acoustic music.

          Comment


          • #6
            Re: Acoustic music.


            > Juxtapose "Enjoyable" and
            > "AC/DC", "Tchaikovsky"

            > Does...not...compute.

            I never said anything about being normal... Back to the original post: So, does this amp clip at 1.3 watts?

            Hong
            Some people are addicted to Vicodin. I'm addicted to speaker building.

            The Chorales - Usher 8945A/Vifa XT25TG Build
            ESP Project 101 Lateral MOSFET Amplifier
            LM4780 Parallel Chipamp
            Sonata Soundbar Project
            The Renditions - Active/Passive Towers

            Comment


            • #7
              Re: Acoustic music.


              It probably outputs 1.3W at 1% THD. It's an SE amp. That means it sounds better at at least double it's power rating than a typical, cheap transistor amp does at it's rating.

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