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It’s that time audio enthusiasts! Registration for the 2019 Speaker Design Competition is now open! Visit midwestaudiofest.com for details and to list your speaker project. We are excited to see all returning participants, and look forward to meeting some new designers this year, as well! Be sure your plans include a visit to the Parts Express Tent Sale for the lowest prices of the year, and the Audio Swap Meet where you can buy and trade with other audio fans. We hope to see you this summer! Vivian and Jill
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The Mystiques - Build Thread

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  • #46
    Originally posted by Kevin K. View Post
    Last of the teasers on the Mystique's for a while guys.
    Just blows my mind how talented some of the folks are on this form. Absolutely beautiful work Kevin. Thank you for sharing design/build tips as you go.*

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    • #47
      Nice!

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      • #48
        Total cabinet porn!* Amazing.* So how does the ceramic sound?

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        • #49
          Where did you source the carbon fiber?

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          • #50
            nice work !
            Paper Towers
            RS180P/28F surrounds
            Boombox

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            • #51
              Originally posted by Kevin K. View Post
              Last of the teasers on the Mystique's for a while guys. After this, it'll be time to dig in and catch the other cabinet up. Also need to vacuum press the other Carbon Fiber insert, paint the cabs and then clear coat everything as a whole. The CF isn't standing out very well in these pics. Once the cabinets are painted to match the Ceramic driver, the CF should pop a little more.

              Disclosure: All though these photos of the CF look okay, I didn't realize until peeling back the protective tape how lumpy the finish is. It's got a great gloss to it but it's not very flat and as you move around and view it from different angles, you can see the lumps. Sorry, I'm anal about this kind of stuff and that's not gonna work for me so I'll be shooting clear over these panels at the same time I shoot the cabs. After some wet sanding and polishing, it will be flat along with glossy.

              Click image for larger version Name:	CF1.jpg Views:	1 Size:	339.3 KB ID:	1374492

              Click image for larger version Name:	CF2.jpg Views:	1 Size:	384.2 KB ID:	1374493

              Click image for larger version Name:	CF3.jpg Views:	1 Size:	364.0 KB ID:	1374494

              Click image for larger version Name:	CF4A.jpg Views:	1 Size:	323.6 KB ID:	1374495

              Got the paint match done this week. Lady at the paint supply nailed it IMO.

              Click image for larger version Name:	Paint Match.jpg Views:	1 Size:	272.9 KB ID:	1374496
              Kevin, what do you think caused the lumpy finish under the CF. I would have thought the vacuum bag would have negated that issue. How did you apply
              the 3M adhesive?

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              • #52
                Sorry for the late replies guys, busy weekend. Spent most of it with Rick Craig of Selah Audio at LoneStar Audiofest, good times. We took some on and off-axis measurements of the Mystique's Friday night in his hotel room. He pointed out a couple of areas that need addressed on the crossovers and made some other suggestions, so I'll be working on that over the next few weeks. Sunday, he came by the house to help fine tune the Gandalf's. Have never done any in-room tuning for the arrays and he detected some room issues/nodes as soon as he heard them. This was a treat to see how much difference room adjustments/tuning can make. He also suggested I build some wall treatments for further improvements. I'm thinking Rick really enjoyed them after the tuning was finished. We spent a couple of hours listening to his music library and he sampled a lot of different stuff. I envy his music collection.

                Thanks dkalsi! I've learned a lot from other builders on this forum and am only trying to pay it forward by sharing any tips I think might be helpful to others. It's part of what makes this such a great community.

                Originally posted by Millstonemike View Post
                Nice!
                Thanks Mike!

                Thanks dst! I've heard this driver in two cabinets now, mine and in Rick Craig's Epico. The reinforced Ceramic cone is not only sexy to look at, it's also an incredibly smooth driver. Easy to work with. IMO, SB Acoustics left money on the table with these drivers but lets keep that to ourselves.

                Originally posted by skatz View Post
                Where did you source the carbon fiber?
                Here you go. https://dragonplate.com/

                Originally posted by filmslayer View Post
                nice work !
                Thanks filmslayer!
                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

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                • #53
                  Catching up to your thread, bud... most impressive! I can imagine what you mean with the "lumpy" carbon fiber finish. Makes me recall that the 0-90 carbon fiber IS a woven product, and will be kinda bumpy unless given a thick enough topcoat of epoxy or other material.

                  I hadn't appreciated that you were using the carbon fiber as an insert to the cabinet front face. Does it pop in and out relatively easy? I'm thinking about your upcoming white paint job here... I'd never be able to tape that carbon fiber off cleanly enough to satisfy myself. It would have to come out for the painting, then get cleared as a unit afterward (as you're doing). I assume you cut the CF insert on the CNC to match your profile after vacuum bagging?

                  Lots of questions peppered in there. As always, great work! Maybe one day I'll do some vacuum bag veneering at home I know there's some neat curvature features to be had there that can't quite be achieved any other way!
                  Voxel Down Firing with Dayton SA70
                  Translam Subwoofers - The Jedi Mind Tricks
                  The Super Bees - Garage 2 way
                  SevenSixTwo - InDIYana 2018 Coax
                  The Defiants - InDIYana 2019 "Bare Minimum" Build

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                  • #54
                    Originally posted by Squidspeak View Post
                    Kevin, what do you think caused the lumpy finish under the CF. I would have thought the vacuum bag would have negated that issue. How did you apply
                    the 3M adhesive?
                    I applied the adhesive to the back of the Carbon Fiber with a 3" wide putty knife and then used a rubber roller to get it as uniform as possible. There's a pretty rough backing on this stuff so perhaps the glue needs to be much thicker to account for how rough the backing is. I'll be attaching a picture of the backing to this reply.

                    Originally posted by KEtheredge87 View Post
                    Catching up to your thread, bud... most impressive! I can imagine what you mean with the "lumpy" carbon fiber finish. Makes me recall that the 0-90 carbon fiber IS a woven product, and will be kinda bumpy unless given a thick enough topcoat of epoxy or other material.

                    I hadn't appreciated that you were using the carbon fiber as an insert to the cabinet front face. Does it pop in and out relatively easy? I'm thinking about your upcoming white paint job here... I'd never be able to tape that carbon fiber off cleanly enough to satisfy myself. It would have to come out for the painting, then get cleared as a unit afterward (as you're doing). I assume you cut the CF insert on the CNC to match your profile after vacuum bagging?

                    Lots of questions peppered in there. As always, great work! Maybe one day I'll do some vacuum bag veneering at home I know there's some neat curvature features to be had there that can't quite be achieved any other way!
                    Thanks Keith! Yep, we're on the same page. The Carbon Fiber insert will come out easily and it will be removed while painting the cabinets white. If there's any wet sanding required on the white, I'll do that right before gluing in the Carbon Fiber insert. Once it's glued in, clear coat the whole thing at once. Couple of days later, wet sand and polish the entire cabinet.

                    Still studying the CF to try to figure out if the lumps are related to how much glue I applied or if it's just the top finish from the factory. Kind of reminds me of a bad car paint job. You can apply a high gloss clear over an orange peeled paint but if the clear isn't wet sanded and buffed, you can still see the orange peel telegraphing through.

                    Click image for larger version  Name:	CF backing.jpg Views:	1 Size:	726.0 KB ID:	1374891
                    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

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