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  • Re: sony buyout

    Originally posted by XtremeRevolution View Post
    I'm guessing a new crossover will need to be built, or you'll need to pad the tweeter a bit more. It would be something you'd have to buy a few extra resistors to experiment with.
    How about it crossing low enough to avoid any issues from being horizontal?

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    • Re: sony buyout

      Originally posted by nottaway View Post
      How about it crossing low enough to avoid any issues from being horizontal?
      It is a rare tweeter that can be used in that manner.
      Don't listen to me - I have not sold any $150,000 speakers.

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      • Re: sony buyout

        Originally posted by johnnyrichards View Post
        It is a rare tweeter that can be used in that manner.
        *ROOKIE WARNING*OK I'll break the news to him.... How low would a tweet have to crossover assuming the woofs were mounted as close as possible? Could you cross the outer woofs lower with like an additional inductor in line after the crossover so that the CTC was not an issue for them?

        I had something like the AV123 X-VOCE in mind......

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        • Re: sony buyout

          Originally posted by r-carpenter View Post
          Frame rings as well and will benefit from silicone or B Rubber but that will be done later.
          Sorry if it's obvious, but what is "B Rubber"?

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          • Re: sony buyout

            Originally posted by forestroyse View Post
            Sorry if it's obvious, but what is "B Rubber"?
            I think butyl rubber.

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            • Re: sony buyout

              Originally posted by johnnyrichards View Post
              It is a rare tweeter that can be used in that manner.
              So what do the rest of us who don't have this rare tweeter do?
              Modding the Lepai T-Amp

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              • Re: sony buyout

                Originally posted by nottaway View Post
                I think butyl rubber.
                Yup ( and neo-rubber like stuff ).

                Since Mr Carpenter has the means to study the temporal performance: he's is a prime position to study them and find means to attenuate.
                ( I haven't found the specific articles on cone mods, but I do recall one in which the author put dimples in the cone, and others that involved placing very small dots of material on cones, or breakup rings/spirals. )
                "Not a Speaker Designer - Not even on the Internet"
                “Pride is your greatest enemy, humility is your greatest friend.”
                "If the freedom of speech is taken away, then dumb and silent we may be led, like sheep to the slaughter."

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                • Re: sony buyout

                  Originally posted by XtremeRevolution View Post
                  So what do the rest of us who don't have this rare tweeter do?
                  Just hang out in front of the center channel, and not off to the sides. It really isn't as big of a deal as some people want to make it - sometimes I think it is just an argument point for forums. "Oh noes! Your horizontal MTM is going to give poor off-axis response at 30 degrees!"

                  Always better to cross as low as possible, but most people have their movie watching system set up to the point where there are no seats not more or less on axis so the problems are really minimal.
                  Don't listen to me - I have not sold any $150,000 speakers.

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                  • Re: sony buyout

                    Originally posted by johnnyrichards View Post
                    Just hang out in front of the center channel, and not off to the sides. It really isn't as big of a deal as some people want to make it - sometimes I think it is just an argument point for forums. "Oh noes! Your horizontal MTM is going to give poor off-axis response at 30 degrees!"

                    Always better to cross as low as possible, but most people have their movie watching system set up to the point where there are no seats not more or less on axis so the problems are really minimal.
                    That's kind of what I figured as well.

                    Any advice on how low I can cross the tweeter I'm using?

                    http://www.parts-express.com/pe/show...umber=264-1028

                    Last time I modeled it, I was going for a 3rd order at 2500.
                    Modding the Lepai T-Amp

                    Comment


                    • Re: sony buyout

                      Originally posted by XtremeRevolution View Post
                      That's kind of what I figured as well.

                      Any advice on how low I can cross the tweeter I'm using?

                      http://www.parts-express.com/pe/show...umber=264-1028

                      Last time I modeled it, I was going for a 3rd order at 2500.
                      It should do 2500.
                      Don't listen to me - I have not sold any $150,000 speakers.

                      Comment


                      • Re: sony buyout

                        impedance of 12drivers, 4 parallels, 3 sets
                        Attached Files
                        http://www.diy-ny.com/

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                        • Re: sony buyout

                          can we make them sound good?:rolleyes:
                          Attached Files
                          http://www.diy-ny.com/

                          Comment


                          • Re: sony buyout

                            Originally posted by r-carpenter View Post
                            can we make them sound good?:rolleyes:
                            I was about to say, because they sure look good! Can't wait to get that frequency response so I can start making a crossover. I imagine at that point, adjusting the output of the tweeter will be a simple matter of swapping tweeter padding resistors till I get the volume I want?
                            Modding the Lepai T-Amp

                            Comment


                            • Re: sony buyout

                              Originally posted by r-carpenter View Post
                              impedance of 12drivers, 4 parallels, 3 sets
                              Hard to tell from the graph for me is that pretty close to 8?

                              Comment


                              • Re: sony buyout

                                Originally posted by nottaway View Post
                                Hard to tell from the graph for me is that pretty close to 8?
                                yep, about. I should check the wiring tho because 4 drivers parallel would give about 2 ohms and 3 sets should add up to roughly 6 ohms not 8.
                                http://www.diy-ny.com/

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