Announcement

Collapse
No announcement yet.

Peerless 830657 for <$6a piece!

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • #61
    I'll vouch for the XT25, can get very loud and stays clean for a dole type tweeter. Javad
    --
    Javad Shadzi
    Bay Area, CA

    2-Channel Stereo system in the works with Adcom components and 4-way towers

    Comment


    • #62
      Originally posted by JavadS View Post
      I'll vouch for the XT25, can get very loud and stays clean for a dole type tweeter. Javad

      Thanks Javad!

      I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
      "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

      High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
      SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
      My Voxel min sub Yet-another-Voxel-build

      Tangband W6-sub

      Comment


      • #63
        So based on the data that's been collected (thanks!), would these work in a 2 way in-wall type speaker? The tweeter and woofer would be on an MDF baffle almost flush with the wall. Internally there would just be insulation/rock wool. Any thoughts?

        Comment


        • #64
          Originally posted by IAHphotog View Post
          So based on the data that's been collected (thanks!), would these work in a 2 way in-wall type speaker? The tweeter and woofer would be on an MDF baffle almost flush with the wall. Internally there would just be insulation/rock wool. Any thoughts?
          These should work fine for in-wall surrounds. You will probably want to high pass them at 80 Hz for that use.

          I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
          "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

          High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
          SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
          My Voxel min sub Yet-another-Voxel-build

          Tangband W6-sub

          Comment


          • #65
            I bought some cheapo xovers to x them at 3khz with a Vifa TC9fd18-08 handling the highs. I'll limit them to 80hz on the low side. Thanks!

            Comment


            • #66
              Are you guys sure the ones labeled FSBA25065-0801 are the 830657? They are much more sinilar in appearance, IMO, to the SDS-160F25PR01-08. The motor on the FSBA labeled drivers have the smaller in diameter/deeper magnet like the SDS-160F25PR01-08, where the 830657s have the shallower, larger in diameter magnet.

              Am I crazy?

              Here is a pic of a pair of the FSBA labeled drivers I have on hand. Definitely a different motor structure than the 830657.

              Comment


              • #67
                Originally posted by dustinbagby View Post
                Are you guys sure the ones labeled FSBA25065-0801 are the 830657? They are much more sinilar in appearance, IMO, to the SDS-160F25PR01-08. The motor on the FSBA labeled drivers have the smaller in diameter/deeper magnet like the SDS-160F25PR01-08, where the 830657s have the shallower, larger in diameter magnet.

                Am I crazy?

                Here is a pic of a pair of the FSBA labeled drivers I have on hand. Definitely a different motor structure than the 830657.

                You may very well be right, but XMAX for the 160 is 6 mm, and the XMAX for these appears to be 3.5 mm.
                I'm thinking this was a custom run of the 830657 and the consistency was not good enough for the application.
                I (of course) do not have access to Klippel, so I'm estimating XMAX based on the given parameters for coil length and gap height.


                I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
                "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

                High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
                SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
                My Voxel min sub Yet-another-Voxel-build

                Tangband W6-sub

                Comment


                • #68
                  So, time to get serious about this project - I got 2 sheets of 4x8 3/4" plywood from Home Depot, and finalized (maybe) the box model.

                  Unibox driver parameters:
                  I calculated xmax at 3.5mm (which matched the published xmax for 830657) and added 10% which gave me 3.85mm

                  Due the limited models in Unibox, I modeled 2 x 2 series / parallel, and will add the equivalent volume for 6x drivers.
                  With a fairly small box and fairly low tuning, driver excursion limits should be acceptable.
                  Xmax is exceeded below 35 Hz, but that's at well over 104 dB without considering the output of 2 more drivers and boundary
                  reinforcement.

                  I'm pretty sure this is what I'm going to build. No reason to tune higher, and a larger box creates xmax problems.

                  I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
                  "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

                  High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
                  SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
                  My Voxel min sub Yet-another-Voxel-build

                  Tangband W6-sub

                  Comment


                  • #69
                    I've been plugging away at this project, and now have 2 boxes built - about 9.5W x 15.5D x 44.5H with nice 3/4 inch rounded sides on the baffle.
                    I want to do a seamless 3/4 veneer wrap from left - baffle - right and I don't want to mess up the veneering.
                    The piece(s) of veneer for this is about 46" x 46", so it's a bit awkward to manipulate. Used some veneer softener on it, so it's pretty pliable.

                    As far as I can tell I will need to slather on Heat Lock (probably 2 coats) on the veneer and box, position the box on it's back, then
                    put the veneer centered on the baffle hanging down on each side. Iron the veneer on the baffle, which will lock it in place, but
                    then what?

                    I'm thinking maybe iron a little on each side while it is vertical to get the veneer attached, then rotate the box on one side and completely iron the top side down,
                    then rotate 180 degrees onto the other side and iron it down completely.

                    Sound like a plan?
                    I really can't figure out any other way to do this. As always, any advice welcome.


                    I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
                    "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

                    High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
                    SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
                    My Voxel min sub Yet-another-Voxel-build

                    Tangband W6-sub

                    Comment


                    • #70
                      Originally posted by donradick View Post
                      I've been plugging away at this project, and now have 2 boxes built - about 9.5W x 15.5D x 44.5H with nice 3/4 inch rounded sides on the baffle.
                      I want to do a seamless 3/4 veneer wrap from left - baffle - right and I don't want to mess up the veneering.
                      The piece(s) of veneer for this is about 46" x 46", so it's a bit awkward to manipulate. Used some veneer softener on it, so it's pretty pliable.

                      As far as I can tell I will need to slather on Heat Lock (probably 2 coats) on the veneer and box, position the box on it's back, then
                      put the veneer centered on the baffle hanging down on each side. Iron the veneer on the baffle, which will lock it in place, but
                      then what?

                      I'm thinking maybe iron a little on each side while it is vertical to get the veneer attached, then rotate the box on one side and completely iron the top side down,
                      then rotate 180 degrees onto the other side and iron it down completely.

                      Sound like a plan?
                      I really can't figure out any other way to do this. As always, any advice welcome.
                      After the baffle is veneered you could put the box on one side with the veneer on other side hanging over the edge of a table/workbench. Then you work the side that's up until finished.Then flip the box to do the other side.

                      Comment


                      • #71
                        Originally posted by Millstonemike View Post
                        After the baffle is veneered you could put the box on one side with the veneer on other side hanging over the edge of a table/workbench. Then you work the side that's up until finished.Then flip the box to do the other side.

                        Jeez, that's just SO obvious. thanks Mike!

                        I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
                        "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

                        High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
                        SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
                        My Voxel min sub Yet-another-Voxel-build

                        Tangband W6-sub

                        Comment


                        • #72
                          Couple of pics of the box build process.

                          the baffle is one inch BB, all the rest is Home Depot 3/4 inch "cabinet grade"
                          Decided to challenge myself with mostly mitered joints.

                          Decided that I better have a one inch baffle, so that meant gluing up 2 1/2 inch pieces of BB





                          Click image for larger version

Name:	one inch baffle glue up smaller IMG_0569.jpg
Views:	398
Size:	167.3 KB
ID:	1315311


                          Since my Porter Cable biscuit joiner can't pivot to a 135 degree registration, I had to figure out how to accurately
                          cut a biscuit slot in a mitered board. so I built a 45 degree jig

                          Click image for larger version

Name:	biscuit-joiner - miter jig overview  smaller  IMG_0609.jpeg
Views:	366
Size:	65.1 KB
ID:	1315314





                          This worked VERY well, the sandpaper held the board securely side to side, and
                          the weight of the board pressed into the joiner face for a very precise registration.



                          Click image for larger version

Name:	biscuit joiner miter jig detail registration smaller IMG_0610.jpeg
Views:	393
Size:	64.9 KB
ID:	1315313

                          you can see the miters very clearly in this shot of a test fit for one side and the baffle.

                          Click image for larger version

Name:	test-fit-baffle and one side smaller IMG_0613.jpg
Views:	370
Size:	87.3 KB
ID:	1315312

                          Gluing up one side to the baffle - used the braces to ensure 90 degrees, and used some wax paper
                          so I could remove them later. I used Gorilla Glue with the mitered and biscuit(ed) joints - and it held
                          very securely.

                          Click image for larger version

Name:	one side glue up with braces for 90 degrees - smaller IMG_0623.jpg
Views:	376
Size:	118.7 KB
ID:	1315315





                          I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
                          "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

                          High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
                          SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
                          My Voxel min sub Yet-another-Voxel-build

                          Tangband W6-sub

                          Comment


                          • #73
                            and finally the gluing up the whole box..
                            I figured that I needed strap clamps, and boy, was that right.

                            Click image for larger version

Name:	whole box glue up - smaller.jpg
Views:	395
Size:	160.8 KB
ID:	1315320

                            Veneering was a real challenge - I wanted to do a 3/4 wrap - everything except the back in one piece.
                            I mixed up some homemade veneer softener and "slopped" in on the sheet.
                            When I came back to it a few days later, results were not what I expected.

                            Click image for larger version

Name:	veneer curled too much softener -smaller IMG_0654.jpeg
Views:	371
Size:	44.3 KB
ID:	1315321




                            Luckily, it was actually pretty pliable, and glued on nicely

                            Click image for larger version

Name:	veneer iron on - warped smaller IMG_0657.jpeg
Views:	372
Size:	57.3 KB
ID:	1315322

                            Click image for larger version

Name:	veneer iron on one side flat smaller IMG_0658.jpeg
Views:	364
Size:	55.2 KB
ID:	1315323

                            I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
                            "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

                            High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
                            SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
                            My Voxel min sub Yet-another-Voxel-build

                            Tangband W6-sub

                            Comment


                            • #74
                              Lookin' good Don!
                              Zarbo Audio Projects Youtube Channel: https://www.youtube.com/channel/UCEZ...aFQSTl6NdOwgxQ * 320-641 Amp Review Youtube: https://youtu.be/ugjfcI5p6m0 *Veneering curves, seams, using heat-lock iron on method *Trimming veneer & tips *Curved Sides glue-up video
                              *Part 2 *Gluing multiple curved laminations of HDF

                              Comment


                              • #75
                                Yes, very nice work Don! And that's a nifty solution for the miter biscuits! Keep up the great work.
                                My "No-Name" CC Speaker
                                Kerry's "Silverbacks"
                                Ben's Synchaeta's for Mom
                                The Archers
                                Rick's "db" Desktop CBT Arrays
                                The Gandalf's

                                Comment

                                Working...
                                X