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Chicago DIY 2011

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  • Re: Chicago DIY 2011

    Chris,
    Those are very attractive. I would like to hear them. Good work.

    Howard

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    • Re: Chicago DIY 2011

      I made some pretty major changes to my Trials' crossovers. Mainly moved the woofer to mid crossover point up. That fixed a resonance issue the mids were having. If I drag them out to the next DIY I think most of you would like the way they sound now.
      Craig

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      • Re: Chicago DIY 2011

        Originally posted by PWR RYD View Post
        I made some pretty major changes to my Trials' crossovers. Mainly moved the woofer to mid crossover point up. That fixed a resonance issue the mids were having. If I drag them out to the next DIY I think most of you would like the way they sound now.
        Craig,

        Were you able to close that dip I thought I heard around 250hz? Otherwise I thought the were terrific.

        M.

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        • Re: Chicago DIY 2011

          Yes.

          btw - what's up with the tube feedback questions ;)
          Craig

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          • Re: Chicago DIY 2011

            Originally posted by PWR RYD View Post
            Yes.

            btw - what's up with the tube feedback questions ;)
            'Tube Feedback' question?

            I don't understand...so what else is new.

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            • Re: Chicago DIY 2011

              I guess it must have been a different Marty from Wisconsin that was trying to understand a tube amplifier feedback circuit on diyaudio. Sorry.
              Craig

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              • Re: Chicago DIY 2011

                Originally posted by PWR RYD View Post
                I guess it must have been a different Marty from Wisconsin that was trying to understand a tube amplifier feedback circuit on diyaudio. Sorry.
                No, I'm pretty sure there's only one Marty from Wisconsin.

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                • Re: Chicago DIY 2011

                  Originally posted by Chris Roemer View Post
                  No, I'm pretty sure there's only one Marty from Wisconsin.
                  And Rightly So! :D

                  But alas, it was not I. Some transient imposter I'm sure.

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                  • Re: Chicago DIY 2011

                    Well, in the spirit of other tweakers, I went ahead and took some detailed plots of the RS28A version of the mini, and re-optimized a crossover for it.

                    After modeling the plots in PCD, I whipped up a crossover, and took a pair of sweeps, 1m in room, 12th octave smoothing, 0 and 45 degrees.

                    Not bad for a first attempt.

                    R = h/(2*pi*m*c) and don't you forget it! || Periodic Table as redrawn by Marshall Freerks and Ignatius Schumacher || King Crimson Radio
                    Byzantium Project & Build Thread || MiniByzy Build Thread || 3 x Peerless 850439 HDS 3-way || 8" 2-way - RS28A/B&C8BG51

                    95% of Climate Models Agree: The Observations Must be Wrong
                    "Gravitational systems are the ashes of prior electrical systems.". - Hannes Alfven, Nobel Laureate, Plasma physicist.

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                    • Re: Chicago DIY 2011

                      Finally got the crossover, etc. posted for the Pecorino, including a reduced BSC variant:

                      http://www.htguide.com/forum/showthread.php4?t=39093
                      diVine Audio

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