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  • #61
    Re: sony buyout

    Originally posted by nottaway View Post
    Since this is ultra budget..... How would this work? MMMMMMTMMMMMM with one of these:

    http://www.parts-express.com/pe/show...number=280-062

    Isn't this the tweet on the Cabrini? Where is the Cabrini crossed over? Any chance to re-use the tweet circuit on it and run the woofs full range?
    I wouldn't run the woofers full range.
    Modding the Lepai T-Amp

    Comment


    • #62
      Re: sony buyout

      I wouldn't run them full range either. These buyouts aren't XJ-92s
      They are a bit shouty and will need some filtering. As to where to roll them and how I'll be working on that next week.
      Cone is not thin. It also has some sticky coating on the surface.
      http://www.diy-ny.com/

      Comment


      • #63
        Re: sony buyout

        What about a 3 way with an ND20, and DC200? That might make an interesting budget 3 way, with $35 worth of drivers.

        Comment


        • #64
          Re: sony buyout

          Originally posted by r-carpenter View Post
          I wouldn't run them full range either. These buyouts aren't XJ-92s
          They are a bit shouty and will need some filtering. As to where to roll them and how I'll be working on that next week.
          Cone is not thin. It also has some sticky coating on the surface.
          I'd like to get some ordered very soon. Do you know if anyone will be measuring them to get a .frd that can be used for modeling a crossover?

          Any recommendations on a tweeter for a line array? Any comments on the ones I was looking at? I'm looking to spend up to $30 per tweeter, possibly using two tweeters per cabinet.

          I'm also looking to make some mini TM bookshelf speakers with these as well, for gifts and such, and I'd like to design a crossover for them myself.
          Modding the Lepai T-Amp

          Comment


          • #65
            Re: sony buyout

            If nobody elsew ill I can this weekend.
            " To me, the soundstage presentation is more about phase and distortion and less about size. However, when you talk about bass extension, there's no replacement for displacement". Tyger23. 4.2015

            Quote Originally Posted by hongrn. Oct 2014
            Do you realize that being an American is like winning the biggest jackpot ever??

            http://www.midwestaudioclub.com/spot...owell-simpson/
            http://s413.photobucket.com/albums/pp216/arlis/

            Comment


            • #66
              Re: sony buyout

              Originally posted by XtremeRevolution View Post
              I'd like to get some ordered very soon. Do you know if anyone will be measuring them to get a .frd that can be used for modeling a crossover?

              Any recommendations on a tweeter for a line array? Any comments on the ones I was looking at? I'm looking to spend up to $30 per tweeter, possibly using two tweeters per cabinet.

              I'm also looking to make some mini TM bookshelf speakers with these as well, for gifts and such, and I'd like to design a crossover for them myself.
              I can send you a Sound Easy file after measurements.
              But what kind of line array? Are you looking at line source with tweeter mounted in the center? Why 2 tweeters per cabinet?
              Problem with using a supertweeter is that it does not go low enough to get reasonably flat on axis frequency response. Supertweeter will kick in around 6k which isn't the best crossover point for Sony (based on Arlis's data) Your summed up response of Sonys in a line array will also go up by a few db below a 1000hz. So, in the end it'll be a very weird sounding speaker. I think the better bet would be to look in to a silk dome with sensitivity around 90db or slightly over. Don't forget that Sony buyout driver has a sensitivity of 84.8075 dB @2.83Vrms/1m so by the time you series/parallel 12 of them, it'll be round about the same as tweeter. Center mount the tweeter and do a conventional type crossover around 2500hz. That would be the easiest way. Then we could do a tweeter line and while it has benefits, the cost will go up.
              BTW ND20 I wouldn't cross below 4k so, no go either.
              Bass section can be active with anything that's clean below 100hz.
              I myself will be doing straight dipole with most likely DX25 or such. If it works out ok, I'll do my new HT set up or may be focused array.

              Attached is a on axis response of my Jordan array with a single horn tweeter. Believe it or not, it sounds very life like and balanced.
              Attached Files
              http://www.diy-ny.com/

              Comment


              • #67
                Re: sony buyout

                Originally posted by r-carpenter View Post
                I can send you a Sound Easy file after measurements.
                But what kind of line array? Are you looking at line source with tweeter mounted in the center? Why 2 tweeters per cabinet?
                Problem with using a supertweeter is that it does not go low enough to get reasonably flat on axis frequency response. Supertweeter will kick in around 6k which isn't the best crossover point for Sony (based on Arlis's data) Your summed up response of Sonys in a line array will also go up by a few db below a 1000hz. So, in the end it'll be a very weird sounding speaker. I think the better bet would be to look in to a silk dome with sensitivity around 90db or slightly over. Don't forget that Sony buyout driver has a sensitivity of 84.8075 dB @2.83Vrms/1m so by the time you series/parallel 12 of them, it'll be round about the same as tweeter. Center mount the tweeter and do a conventional type crossover around 2500hz. That would be the easiest way. Then we could do a tweeter line and while it has benefits, the cost will go up.
                BTW ND20 I wouldn't cross below 4k so, no go either.
                Bass section can be active with anything that's clean below 100hz.
                I myself will be doing straight dipole with most likely DX25 or such. If it works out ok, I'll do my new HT set up or may be focused array.

                Attached is a on axis response of my Jordan array with a single horn tweeter. Believe it or not, it sounds very life like and balanced.
                I was just throwing around ideas. I have no experience with line arrays, so I'm getting a feel for what works and what doesn't. Ultimately, first hand experience will be the best way to find out, which is why I'm going to be buying these drivers. If all else fails, I'll keep making cheap TM gifts out of them and I'll keep my Statement Monitors for my more critical listening.

                I mentioned super tweeter to keep up with the woofers, but it appears that it won't be necessary. If using only one tweeter will do the trick, then I will only need one tweeter.

                I am looking at a line source with the tweeter mounted in the center. 6 woofers above, 6 woofers below. I want this array to be able to hit theater levels of SPL for movies. I currently have two Image Dynamics IDQ10 V2 subs for bass duty in a sealed box, which get plenty loud for my theater room and sound very clean up to 125hz, so I can cross wherever needed.

                I'm finding myself going back to the same tweeter I keep using repeatedly. I used this in Don Radick's Aurbacs, I'm using this in my WMTMW 2.5-way speakers (in progress) with 4 3" TB drivers, and I'm tempted to use it again for this line array.

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

                It can be crossed fairly low, it gets plenty loud, and given the frequency response, provides a great value. What do you think?
                Modding the Lepai T-Amp

                Comment


                • #68
                  Re: sony buyout

                  Originally posted by r-carpenter View Post
                  I can send you a Sound Easy file after measurements.
                  But what kind of line array? Are you looking at line source with tweeter mounted in the center? Why 2 tweeters per cabinet?
                  Problem with using a supertweeter is that it does not go low enough to get reasonably flat on axis frequency response. Supertweeter will kick in around 6k which isn't the best crossover point for Sony (based on Arlis's data) Your summed up response of Sonys in a line array will also go up by a few db below a 1000hz. So, in the end it'll be a very weird sounding speaker. I think the better bet would be to look in to a silk dome with sensitivity around 90db or slightly over. Don't forget that Sony buyout driver has a sensitivity of 84.8075 dB @2.83Vrms/1m so by the time you series/parallel 12 of them, it'll be round about the same as tweeter. Center mount the tweeter and do a conventional type crossover around 2500hz. That would be the easiest way. Then we could do a tweeter line and while it has benefits, the cost will go up.
                  BTW ND20 I wouldn't cross below 4k so, no go either.
                  Bass section can be active with anything that's clean below 100hz.
                  I myself will be doing straight dipole with most likely DX25 or such. If it works out ok, I'll do my new HT set up or may be focused array.

                  Attached is a on axis response of my Jordan array with a single horn tweeter. Believe it or not, it sounds very life like and balanced.
                  If this was in reference to my post about a budget 3 way, Zaph crossed at 3500hz with the ZDT3.5. This proposed design wouldnt even be close to the performance level of that speaker. I dont see why even a 3k x-over wouldnt be okay.

                  Comment


                  • #69
                    Re: sony buyout

                    So, I received my order today-super-quick considering I only ordered yesterday. I don't have a proper testing rig, but I did connect 2 of the sony buyout drivers to a Dayton 15W T-amp just on the table in open air. I played some random dubstep to get the cones moving and was pretty impressed, even if my test was totally subjective and unscientific. I really think these have potential.

                    The bad news is that I ordered 2 of the 270-049 Constant Directivity Horn tweeters, and they're going right back. Both arrived with some cosmetic flaws, and both had the horns come unglued, which seems to be a common problem. Sure, I could re-glue them, but I shouldn't have to. Also, looking at the horn driver, there are 3 slits that almost form a circle around the phase plug, and in both drivers, 2 of the 3 slits were partially blocked with extra plastic. Poor molding or finishing. These things are lacking in quality, even for $10. The Vifa BC25SC06-04 mentioned earlier seems like a better option to me, but it is only 4 ohms.

                    Comment


                    • #70
                      Re: sony buyout

                      Originally posted by forestroyse View Post
                      So, I received my order today-super-quick considering I only ordered yesterday. I don't have a proper testing rig, but I did connect 2 of the sony buyout drivers to a Dayton 15W T-amp just on the table in open air. I played some random dubstep to get the cones moving and was pretty impressed, even if my test was totally subjective and unscientific. I really think these have potential.

                      The bad news is that I ordered 2 of the 270-049 Constant Directivity Horn tweeters, and they're going right back. Both arrived with some cosmetic flaws, and both had the horns come unglued, which seems to be a common problem. Sure, I could re-glue them, but I shouldn't have to. Also, looking at the horn driver, there are 3 slits that almost form a circle around the phase plug, and in both drivers, 2 of the 3 slits were partially blocked with extra plastic. Poor molding or finishing. These things are lacking in quality, even for $10. The Vifa BC25SC06-04 mentioned earlier seems like a better option to me, but it is only 4 ohms.
                      I believe that once the crossover is designed, your final impedance will be more manageable and the tweeter will play a small part.
                      Modding the Lepai T-Amp

                      Comment


                      • #71
                        Re: sony buyout

                        Originally posted by fourdegrees View Post
                        If this was in reference to my post about a budget 3 way, Zaph crossed at 3500hz with the ZDT3.5. This proposed design wouldnt even be close to the performance level of that speaker. I dont see why even a 3k x-over wouldnt be okay.
                        In Zaph's design, ND starts rolling off actually around 5k and it's about 7db down by the time response gets to 3500hz. Also it's a 3rd order electrical network. I mean, try it. I don't think you can get it to play low and loud enough to fill the gap but why not.

                        Originally posted by XtremeRevolution View Post
                        I believe that once the crossover is designed, your final impedance will be more manageable and the tweeter will play a small part.
                        yes.

                        Originally posted by XtremeRevolution View Post
                        I was just throwing around ideas. I have no experience with line arrays, so I'm getting a feel for what works and what doesn't. Ultimately, first hand experience will be the best way to find out, which is why I'm going to be buying these drivers. If all else fails, I'll keep making cheap TM gifts out of them and I'll keep my Statement Monitors for my more critical listening.

                        I mentioned super tweeter to keep up with the woofers, but it appears that it won't be necessary. If using only one tweeter will do the trick, then I will only need one tweeter.

                        I am looking at a line source with the tweeter mounted in the center. 6 woofers above, 6 woofers below. I want this array to be able to hit theater levels of SPL for movies. I currently have two Image Dynamics IDQ10 V2 subs for bass duty in a sealed box, which get plenty loud for my theater room and sound very clean up to 125hz, so I can cross wherever needed.

                        I'm finding myself going back to the same tweeter I keep using repeatedly. I used this in Don Radick's Aurbacs, I'm using this in my WMTMW 2.5-way speakers (in progress) with 4 3" TB drivers, and I'm tempted to use it again for this line array.

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

                        It can be crossed fairly low, it gets plenty loud, and given the frequency response, provides a great value. What do you think?

                        I think it sounds like a good plan. Interesting tweeter too.
                        Also, there aren't too many people who can claim an expertise with line arrays. I certainly don't claim to be one. Arrays are big and pricy, hard to build, even harder to measure.
                        http://www.diy-ny.com/

                        Comment


                        • #72
                          Re: sony buyout

                          Throwing another tweeter option/question out there....

                          http://www.apexjr.com/speakerstuff.html

                          The 1'' dome tweeter has really high sensitivity, 4ohm though, pretty cheap......

                          Comment


                          • #73
                            Re: sony buyout

                            Originally posted by r-carpenter View Post
                            In Zaph's design, ND starts rolling off actually around 5k and it's about 7db down by the time response gets to 3500hz. Also it's a 3rd order electrical network. I mean, try it. I don't think you can get it to play low and loud enough to fill the gap but why not.


                            yes.




                            I think it sounds like a good plan. Interesting tweeter too.
                            Also, there aren't too many people who can claim an expertise with line arrays. I certainly don't claim to be one. Arrays are big and pricy, hard to build, even harder to measure.
                            I think in that case, I'll just order two of those tweeters with these drivers for the line array. They have a very smooth frequency response, are very affordable, and have a high enough sensitivity to work well with this project.
                            Modding the Lepai T-Amp

                            Comment


                            • #74
                              Re: sony buyout

                              Alright, I ordered two crates of these for myself, along with two of those Vifa tweeters for the line array, since I've been quite happy with them. They are very smooth, have very good reviews, and are priced very nicely. My wife will say I'm insane.
                              Modding the Lepai T-Amp

                              Comment


                              • #75
                                Re: sony buyout

                                Did you look at these? http://www.madisoundspeakerstore.com...ome-truncated/

                                They should work well.

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