Troels Ekta 2 build

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  • Browncoat
    Senior Member
    • Oct 2016
    • 131

    Troels Ekta 2 build

    I don't know enough to design my own speakers, but I enjoy woodworking, and speakers are one of my favorite projects, so I've been trolling around for a new project lately and settled on Troels' Ekta 2 kit. (As an aside, I personally think the DIY speaker community is doing more interesting and innovative woodworking than the general hobbyist woodworking crowd) The package got stuck in customs for a few days, but Jantzen helped me rescue it and it arrived safely last week. The packaging was artfully done--after taking a quick inventory, I couldn't fit everything back in the same box. While I finish up another project, I'm thinking about how I'd like to finish the cabinets. I despise painting, so I'll probably veneer, but I'm not sure yet.

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  • Steve Manning
    Moderator
    • Dec 2006
    • 1892

    #2
    Originally posted by Browncoat
    I don't know enough to design my own speakers, but I enjoy woodworking, and speakers are one of my favorite projects, so I've been trolling around for a new project lately and settled on Troels' Ekta 2 kit. (As an aside, I personally think the DIY speaker community is doing more interesting and innovative woodworking than the general hobbyist woodworking crowd) The package got stuck in customs for a few days, but Jantzen helped me rescue it and it arrived safely last week. The packaging was artfully done--after taking a quick inventory, I couldn't fit everything back in the same box. While I finish up another project, I'm thinking about how I'd like to finish the cabinets. I despise painting, so I'll probably veneer, but I'm not sure yet.

    [ATTACH=CONFIG]29919[/ATTACH]

    [ATTACH=CONFIG]29918[/ATTACH]
    Nice ..... all the goodies in one box.
    Hold on to your butts - It's about to get Musical!



    WEBSITE: http://www.smjaudio.com/

    Comment

    • Browncoat
      Senior Member
      • Oct 2016
      • 131

      #3
      Agreed--the one-stop shopping suits a person with limited skills like me.

      Comment

      • Evil Twin
        Super Senior Member
        • Nov 2004
        • 1532

        #4
        Shiny...
        DFAL
        Dark Force Acoustic Labs

        A wholly owned subsidiary of Palpatine Heavy Industries

        Comment

        • Browncoat
          Senior Member
          • Oct 2016
          • 131

          #5
          I was gung-ho to start this project, then life immediately happened. However, I'm now pleased to report that large pieces of plywood were made into smaller pieces of plywood, along with lots of sawdust and noise.

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          • ergo
            Senior Member
            • Mar 2005
            • 676

            #6
            Nice progress and great tools. I envy the Hammer table saw. I just wish I could be able to fit something like it into my workshop some day. Current one would be way too small for it. I do have one Hammer - the A3 planer/thicknesses. Great machines!

            Comment

            • Evil Twin
              Super Senior Member
              • Nov 2004
              • 1532

              #7
              Originally posted by Browncoat
              I don't know enough to design my own speakers, but I enjoy woodworking, and speakers are one of my favorite projects, so I've been trolling around for a new project lately and settled on Troels' Ekta 2 kit. (As an aside, I personally think the DIY speaker community is doing more interesting and innovative woodworking than the general hobbyist woodworking crowd) The package got stuck in customs for a few days, but Jantzen helped me rescue it and it arrived safely last week. The packaging was artfully done--after taking a quick inventory, I couldn't fit everything back in the same box. While I finish up another project, I'm thinking about how I'd like to finish the cabinets. I despise painting, so I'll probably veneer, but I'm not sure yet.

              [ATTACH=CONFIG]29919[/ATTACH]

              [ATTACH=CONFIG]29918[/ATTACH]

              One must concede this is a very nice box of parts... the sort of celebration one might give to the local holiday "Christmas" comes to mind...
              DFAL
              Dark Force Acoustic Labs

              A wholly owned subsidiary of Palpatine Heavy Industries

              Comment

              • Evil Twin
                Super Senior Member
                • Nov 2004
                • 1532

                #8
                Originally posted by ergo
                Nice progress and great tools. I envy the Hammer table saw. I just wish I could be able to fit something like it into my workshop some day. Current one would be way too small for it. I do have one Hammer - the A3 planer/thicknesses. Great machines!

                I concur, and am similarly envious of Steve Manning's SawStop cabinet saw...


                At least, I discovered their new enlarged and improved SawStop job site saw, and have been very pleased with that as an intermediate step...
                DFAL
                Dark Force Acoustic Labs

                A wholly owned subsidiary of Palpatine Heavy Industries

                Comment

                • Browncoat
                  Senior Member
                  • Oct 2016
                  • 131

                  #9
                  Marius Hornberger (YouTube) uses a short-stroke slider in a very compact shop...

                  It's a pleasure to use, and it's safer, faster, and more accurate than my old JET contractor saw, but aside from (clean) long bevels, there wasn't much that the JET couldn't do.

                  Comment

                  • Steve Manning
                    Moderator
                    • Dec 2006
                    • 1892

                    #10
                    Very much drool on the saw. :T
                    Hold on to your butts - It's about to get Musical!



                    WEBSITE: http://www.smjaudio.com/

                    Comment

                    • Norm
                      Member
                      • Mar 2011
                      • 62

                      #11
                      Originally posted by Steve Manning
                      Very much drool on the saw. :T
                      Dang it Steve, if you drool on it then it's gonna rust!

                      Comment

                      • Steve Manning
                        Moderator
                        • Dec 2006
                        • 1892

                        #12
                        Originally posted by Norm
                        Dang it Steve, if you drool on it then it's gonna rust!
                        Norm I was thinking the same thing ..... I'll have to send him some paste wax first.
                        Hold on to your butts - It's about to get Musical!



                        WEBSITE: http://www.smjaudio.com/

                        Comment

                        • Browncoat
                          Senior Member
                          • Oct 2016
                          • 131

                          #13
                          I had the parts on a shelf in a closet for "safe keeping", but somehow the bitumen pads fell off and some of them shattered (?!?). Does anybody have a suggested replacement? I'm not trying to pinch pennies on this project, but they're pretty heavy, so ordering from Jantzen would be inefficient, although not out of the question. They're 50cm x 25cm and about 4mm thick.

                          Comment

                          • roadrune
                            Junior Member
                            • May 2017
                            • 23

                            #14
                            Most auto shops should have bitumen, especially those dealing with car stereo.

                            However you can "weld" the old one together using a heat gun.

                            Comment

                            • Norm
                              Member
                              • Mar 2011
                              • 62

                              #15
                              Browncoat, I have heard several excellent speakers that use GR Research's NoRez for enclosure damping.

                              Comment

                              • Browncoat
                                Senior Member
                                • Oct 2016
                                • 131

                                #16
                                Good suggestions, thanks @roadrune and @Norm. I've got a heat gun, so I'll try that first...

                                Comment

                                • Steve Manning
                                  Moderator
                                  • Dec 2006
                                  • 1892

                                  #17
                                  PE carries a few good options as well, if the heat gun doesn't work. https://www.parts-express.com/brand/sonic-barrier/494

                                  Sonic Barrier
                                  Last edited by theSven; 09 April 2023, 04:31 Sunday. Reason: Update image location
                                  Hold on to your butts - It's about to get Musical!



                                  WEBSITE: http://www.smjaudio.com/

                                  Comment

                                  • Browncoat
                                    Senior Member
                                    • Oct 2016
                                    • 131

                                    #18
                                    Not a lot of construction progress lately, although I did manage to transfer a measurement incorrectly and had to fill and recut a dado on four pieces. Turned out pretty well after all .

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                                    The veneer showed up today, and it looks sharp! Pressure's on not to mess things up now...

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                                    • Evil Twin
                                      Super Senior Member
                                      • Nov 2004
                                      • 1532

                                      #19
                                      Yes, the concept of avoiding loss reduction due to process errors becomes more and more important as the assembly process proceeds...
                                      DFAL
                                      Dark Force Acoustic Labs

                                      A wholly owned subsidiary of Palpatine Heavy Industries

                                      Comment

                                      • Browncoat
                                        Senior Member
                                        • Oct 2016
                                        • 131

                                        #20
                                        Agreed--it's disheartening to make a mistake after putting a bunch of time into something. Fortunately, I have extensive experience in dealing with mistakes.

                                        Nothing is glued up yet, but I got most of the internals done this weekend:

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                                        • JonMarsh
                                          Mad Max Moderator
                                          • Aug 2000
                                          • 15305

                                          #21
                                          This seems to be coming together nicely at this point- assembled cabinets can't be very far off...
                                          the AudioWorx
                                          Natalie P
                                          M8ta
                                          Modula Neo DCC
                                          Modula MT XE
                                          Modula Xtreme
                                          Isiris
                                          Wavecor Ardent

                                          SMJ
                                          Minerva Monitor
                                          Calliope
                                          Ardent D

                                          In Development...
                                          Isiris Mk II updates- in final test stage!
                                          Obi-Wan
                                          Saint-Saëns Symphonique/AKA SMJ-40
                                          Modula PWB
                                          Calliope CC Supreme
                                          Natalie P Ultra
                                          Natalie P Supreme
                                          Janus BP1 Sub


                                          Resistance is not futile, it is Volts divided by Amperes...
                                          Just ask Mr. Ohm....

                                          Comment

                                          • Browncoat
                                            Senior Member
                                            • Oct 2016
                                            • 131

                                            #22
                                            Thanks I'm getting close to some decision points in the project, and I confess to using "busy work" as an avoidance tactic...

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                                            • Browncoat
                                              Senior Member
                                              • Oct 2016
                                              • 131

                                              #23
                                              Gluing stuff up always seems stressful to me, but everything went OK so far . These are almost exactly the same size as the last set of speaker cabinets I built, which makes me think I should have tried something a little more different. There's always next time, though...

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                                              • Browncoat
                                                Senior Member
                                                • Oct 2016
                                                • 131

                                                #24
                                                I found a little time to do some veneer work this weekend.

                                                There are a million ways to joint edges, but for long rip edges my favorite way is to sandwich a stack of veneer between hardboard and use a tracksaw. BTW, I like to joint large pieces rather than smaller lengths, especially when I want to wrap veneer around a form and match the grain.

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                                                I stretch blue tape on the backside to hold the veneers together. That little hand saw is my favorite way to make crosscut joints (otherwise, I just use a utility knife).

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                                                I use standard veneer tape on the show side and remove the blue tape from the back when it dries.

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                                                Hopefully, I'll get some veneer glued to the baffles soon!

                                                Comment

                                                • Browncoat
                                                  Senior Member
                                                  • Oct 2016
                                                  • 131

                                                  #25
                                                  Still pluggin' away at the baffles. I'm so slow.

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                                                  • Browncoat
                                                    Senior Member
                                                    • Oct 2016
                                                    • 131

                                                    #26
                                                    Got the bitumen and felt glued into the cabinets and I'm getting close to closing them up. The carpet glue that Troels suggests works well, but it's pretty messy.

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                                                    • theSven
                                                      Master of None
                                                      • Jan 2014
                                                      • 1416

                                                      #27
                                                      The build is looking really good! Looking forward to seeing the cabinets finished.
                                                      Painter in training

                                                      Comment

                                                      • Browncoat
                                                        Senior Member
                                                        • Oct 2016
                                                        • 131

                                                        #28
                                                        Finally found some time to close up the cabinets. I realized that I forgot to put bitumen and felt on the back as Troels suggests, so I did that real quick first. Instead of using clamps, I decided to throw it in the bag. Good news--the cabinets didn't collapse

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                                                        • Browncoat
                                                          Senior Member
                                                          • Oct 2016
                                                          • 131

                                                          #29
                                                          Couldn't resist wiping the baffle down with mineral spirits and putting the drivers in to imagine how it will look some day. Simple mind, simple pleasures

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                                                          • Horio
                                                            Senior Member
                                                            • Sep 2014
                                                            • 158

                                                            #30
                                                            Your speakers are looking great!

                                                            Everytime I see your Hammer B3 saw, I have to wipe a little drool off my chin...

                                                            Comment

                                                            • Browncoat
                                                              Senior Member
                                                              • Oct 2016
                                                              • 131

                                                              #31
                                                              Thanks, the super clean work in your Ardent thread presents an example to aspire to!

                                                              I've enjoyed the saw and I'd definitely buy it again, but I'd probably skip the shaper. I don't use it very much, and the tooling is expensive.

                                                              Comment

                                                              • Browncoat
                                                                Senior Member
                                                                • Oct 2016
                                                                • 131

                                                                #32
                                                                More veneer work this week, which is my favorite part I also made some covers for the holes so I can keep using the bag.

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                                                                • dar47
                                                                  Senior Member
                                                                  • Nov 2008
                                                                  • 876

                                                                  #33
                                                                  Very nice. It would be a shame to crush your cab now, lol. How much Psi on the bag do you use?

                                                                  Comment

                                                                  • Browncoat
                                                                    Senior Member
                                                                    • Oct 2016
                                                                    • 131

                                                                    #34
                                                                    Thanks, I hope they don't collapse too! Besides destroying the cabinet, it would probably ruin the bag. I think I use roughly 19 inHg, so 9.3 psi?

                                                                    Comment

                                                                    • Browncoat
                                                                      Senior Member
                                                                      • Oct 2016
                                                                      • 131

                                                                      #35
                                                                      Cabinets survived, veneer done*. I also resawed some hardwood for detail work--I miss my old bandsaw

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                                                                      *Until I change my mind or mess something up and need to repair it.

                                                                      Comment

                                                                      • dar47
                                                                        Senior Member
                                                                        • Nov 2008
                                                                        • 876

                                                                        #36
                                                                        very nice, working with just raw veneer is nicer then a PSA backed veneer as you get no glue showing at the joints. Hardwood for inlay or hard wood corners?

                                                                        Comment

                                                                        • Browncoat
                                                                          Senior Member
                                                                          • Oct 2016
                                                                          • 131

                                                                          #37
                                                                          Originally posted by dar47
                                                                          very nice, working with just raw veneer is nicer then a PSA backed veneer as you get no glue showing at the joints. Hardwood for inlay or hard wood corners?
                                                                          Thanks! Yeah, I think edge-to-edge veneer on a closed box can make it look a little formless, so I'm going to try edging the sides as if they were edge-banded panels.

                                                                          Comment

                                                                          • Browncoat
                                                                            Senior Member
                                                                            • Oct 2016
                                                                            • 131

                                                                            #38
                                                                            Kinda nerve-wracking to cut up perfectly good cabinets.

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                                                                            • dar47
                                                                              Senior Member
                                                                              • Nov 2008
                                                                              • 876

                                                                              #39
                                                                              Haha. Ya I usually apply some tape where the router bit barring will ride, this will chew the tape if you tilt while routing. Just a little safety in my mind anyways.

                                                                              Comment

                                                                              • Browncoat
                                                                                Senior Member
                                                                                • Oct 2016
                                                                                • 131

                                                                                #40
                                                                                It's slow work, especially when I'm busy with other things, but I like the look:

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                                                                                • Carl V
                                                                                  Senior Member
                                                                                  • Apr 2005
                                                                                  • 269

                                                                                  #41
                                                                                  Nice job thus far. And yeah,major tool envy.
                                                                                  Wood specie? Walnut? Wenge edges? Anxious to hear you impressions of their Sonics.

                                                                                  Comment

                                                                                  • Browncoat
                                                                                    Senior Member
                                                                                    • Oct 2016
                                                                                    • 131

                                                                                    #42
                                                                                    Thanks! You nailed it: walnut and wenge.

                                                                                    Comment

                                                                                    • 5th element
                                                                                      Supreme Being Moderator
                                                                                      • Sep 2009
                                                                                      • 1671

                                                                                      #43
                                                                                      I've done edging like that on a cabinet before myself. It always makes such a difference to the overall appearance being able to add a roundover to the edges of a cabinet. Something that you cannot easily do if it's veneer edge to edge. It is such a pain adding in the wooden edges though. A solid wood front baffle is another option, or a small sub baffle just to house the drivers.

                                                                                      I took the sub baffle approach here...

                                                                                      http://www.5een.co.uk/DayQ.htm

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                                                                                      Completely out of necessity for covering up old driver cut outs in the old cabinets. But the small solid wood panels, just to house the drivers, makes such an improvement on the way the speakers look.
                                                                                      Last edited by theSven; 09 April 2023, 04:32 Sunday. Reason: Update image location
                                                                                      What you screamin' for, every five minutes there's a bomb or something. I'm leavin' Bzzzzzzz!
                                                                                      5th Element, otherwise known as Matt.
                                                                                      Now with website. www.5een.co.uk Still under construction.

                                                                                      Comment

                                                                                      • Browncoat
                                                                                        Senior Member
                                                                                        • Oct 2016
                                                                                        • 131

                                                                                        #44
                                                                                        Agreed--those are beautiful cabinets!

                                                                                        Comment

                                                                                        • Carl V
                                                                                          Senior Member
                                                                                          • Apr 2005
                                                                                          • 269

                                                                                          #45
                                                                                          Originally posted by Browncoat
                                                                                          Thanks! You nailed it: walnut and wenge.
                                                                                          Mine are tineo with wenge

                                                                                          Comment

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