Crackyflipside's DA Khanspire build

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  • crackyflipside
    Senior Member
    • Nov 2006
    • 197

    Crackyflipside's DA Khanspire build

    Long time no post in this here thread!

    I am incredibly close to buying all the parts for these speakers and just re-read the entire thread to make sure these are the speakers for me.

    The tweeter is a big issue for me, I've listened to the other HTGuide WWMT design that Chasw98 built with both the RS28 and the Seas metal tweeter. Both tweeters did sound bright and harsh at first but with some listening, they both were very easy to listen to, I preferred the Seas sound a bit more since it was a bit more revealing in the high end without coming across as a harsh sound. My main listening speakers are a set of BB Insignia speakers, the ones with the coax driver and the fabric dome tweeters, not the best but listening to them 3 feet away is alright.

    So I'm kind of torn between wanting a metal or fabric dome so I hope that my placement issues and listening demands will help me chose one over the other.

    -On wall placement behind SmX AT screen
    -Identical L/C/R
    -Acoustically treated / dedicated theater room.
    -50/50 (music/ht)
    -Bass by 4x18" IB
    -Surrounds RS225/25a by Mark K
    Last edited by crackyflipside; 04 January 2009, 19:56 Sunday.
    -Chris B

    ;x( DIY
  • ---k---
    Ultra Senior Member
    • Nov 2005
    • 5202

    #2
    Is there a question in there?

    Hold off on making a decision. There are some questions about the RS28s and an undocumented change in the design. I plan to verify which version the Khans were designed using this weekend.
    - Ryan

    CJD Ochocinco! ND140/BC25SC06 MTM & TM
    CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
    CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

    Comment

    • crackyflipside
      Senior Member
      • Nov 2006
      • 197

      #3
      Originally posted by ---k---
      Is there a question in there?

      Hold off on making a decision. There are some questions about the RS28s and an undocumented change in the design. I plan to verify which version the Khans were designed using this weekend.
      Damn, I knew I missed something in that last post!

      Had anything developed with the talk of using the TDFC tweeter?
      -Chris B

      ;x( DIY

      Comment

      • ---k---
        Ultra Senior Member
        • Nov 2005
        • 5202

        #4
        No one has been serious enough about building them with the SEAS tweeter for CJD to do a redesign. I think he has the data to redesign it. Of course, who knows if there are any variations in the Seas tweeter in the last two years since he last measured it. Dayton isn't the only brand to suffer part creep. I believe that CJD is on vacation right now, make sure to ask him when you see him posting again.

        I hope to pull one of my Khan's tweeters this evening. If nothing else, I can run a quick impedance plot. If it was designed with the non-ferro fluid RS28, then I think you could place an order for RS28s and get the same. No harm if you ask me. We'll see.
        - Ryan

        CJD Ochocinco! ND140/BC25SC06 MTM & TM
        CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
        CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

        Comment

        • cjd
          Ultra Senior Member
          • Dec 2004
          • 5568

          #5
          Impedance is identical on the tweeter, mains and center. Like, insanely well matched.

          C
          diVine Sound - my DIY speaker designs at diVine Audio

          Comment

          • ---k---
            Ultra Senior Member
            • Nov 2005
            • 5202

            #6
            It will need padding though to match the sensitivity??
            - Ryan

            CJD Ochocinco! ND140/BC25SC06 MTM & TM
            CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
            CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

            Comment

            • crackyflipside
              Senior Member
              • Nov 2006
              • 197

              #7
              Any news guys, I'm ready to pull the trigger on a trio!
              -Chris B

              ;x( DIY

              Comment

              • crackyflipside
                Senior Member
                • Nov 2006
                • 197

                #8
                ... BUMP!

                Any crossover changes for the original RS28 design?
                -Chris B

                ;x( DIY

                Comment

                • cjd
                  Ultra Senior Member
                  • Dec 2004
                  • 5568

                  #9
                  I'm completely confused on what is being asked here. Sensitivity differences between what and what for what?
                  diVine Sound - my DIY speaker designs at diVine Audio

                  Comment

                  • ---k---
                    Ultra Senior Member
                    • Nov 2005
                    • 5202

                    #10
                    After further posts from Zaph and talking with Curt at Iowa, I'm very sure that the RS28s used for the Khans were without FerroFluid. - Therefore, the current design. It sounds like the frequecy response should be within tolerance of the ones currently being sold. But, the sensitivity listed on my original ones was 90+0.0db, while the new ones I got are 91+0.6db, so you may have to pad the tweeter down to taste. I'm told that variations like this over the course of a couple of years is normal.
                    Last edited by ---k---; 17 December 2008, 13:25 Wednesday.
                    - Ryan

                    CJD Ochocinco! ND140/BC25SC06 MTM & TM
                    CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
                    CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

                    Comment

                    • cjd
                      Ultra Senior Member
                      • Dec 2004
                      • 5568

                      #11
                      Ahh. Interesting. I understand now.
                      diVine Sound - my DIY speaker designs at diVine Audio

                      Comment

                      • crackyflipside
                        Senior Member
                        • Nov 2006
                        • 197

                        #12
                        What was the undocumented change you mentioned, K?
                        -Chris B

                        ;x( DIY

                        Comment

                        • ---k---
                          Ultra Senior Member
                          • Nov 2005
                          • 5202

                          #13
                          Well heck. I just got another RS28 from PE. This one has the sensitivity sticker on it of 90+0.2db. Or EXACTLY what the old one was. I thought there had been a change that boosted the sensitivity from the 90db up to 91. But, it looks like that may be more of the normal tolerances in the current batch.

                          Go forth an order. Just order a few resistors to play with.
                          - Ryan

                          CJD Ochocinco! ND140/BC25SC06 MTM & TM
                          CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
                          CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

                          Comment

                          • crackyflipside
                            Senior Member
                            • Nov 2006
                            • 197

                            #14
                            Originally posted by cjd
                            For mounting back-to-the-wall (but not in-wall) go 16ga or 18ga inductors in the woofer circuit.
                            Got a question, for the 2.75mH inductor, they only have it in 14ga and 19ga which do I grab; I went with 16ga for the other inductor on the woofer circuit (unless you say otherwise!)

                            Originally posted by cjd
                            There may still be a touch of extra midrange requiring a little extra series impedance on the mid as well - going 20ga inductor on the mid's series inductor will help, and having an additional ~1ohm pad on the mid might be required (series resistor in front of the network I think I found worked best - make sure it's got the required power handling!)
                            Only find 19ga for the .55mH, I assume that's close enough to 20ga?
                            -Chris B

                            ;x( DIY

                            Comment

                            • crackyflipside
                              Senior Member
                              • Nov 2006
                              • 197

                              #15
                              Things bought for a trio of wall mounted Khanspires.

                              Dayton DMPC-1.0 1.0uF 250V Polypropylene Capacitor 6
                              Dayton DMPC-4.0 4.0uF 250V Polypropylene Capacitor 3
                              Dayton DMPC-15 15uF 250V Polypropylene Capacitor 3
                              Dayton DMPC-30 30uF 250V Polypropylene Capacitor 6
                              High Power Terminal with Fuse Holder 3
                              Mills 20 Ohm 12W Non-Inductive Resistor 3
                              Dayton DMPC-7.5 7.5uF 250V Polypropylene Capacitor 3
                              Jantzen 1.5mH 20 AWG Air Core Inductor 3
                              Jantzen 0.18mH 18 AWG Air Core Inductor 3
                              Jantzen 10mH 18 AWG Air Core Inductor 3
                              Dayton DMPC-90 90uF 250V Polypropylene Capacitor 6
                              Dayton RS150S-8 6" Reference Shielded Woofer 8 Ohm 6
                              Dayton RS225S-8 8" Reference Shielded Woofer 8 Ohm 6
                              Dayton RS28A-4 1-1/8" Aluminum Dome Tweeter 3

                              Then from Madisound:

                              3 x Madisound 2.75 mH 19 AWG Air Core Inductor
                              3 x Sidewinder 0.39 mH Air Core Inductor 16 AWG
                              3 x Madisound 0.55 mH 19 AWG Air Core Inductor
                              -Chris B

                              ;x( DIY

                              Comment

                              • ---k---
                                Ultra Senior Member
                                • Nov 2005
                                • 5202

                                #16
                                :T Very cool.

                                I didn't check your purchase list. I hope you weren't looking for that. I didn't see any sonic barrier, binding posts, quick connects, and some other misc. stuff. Also, like I said, with your next order throw a handful of 0.5 and 1 ohm resistors in the cart so that you can play with.

                                Keep us posted on your progress.
                                - Ryan

                                CJD Ochocinco! ND140/BC25SC06 MTM & TM
                                CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
                                CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

                                Comment

                                • crackyflipside
                                  Senior Member
                                  • Nov 2006
                                  • 197

                                  #17
                                  Originally posted by ---k---
                                  :T Very cool.

                                  I didn't check your purchase list. I hope you weren't looking for that. I didn't see any sonic barrier, binding posts, quick connects, and some other misc. stuff. Also, like I said, with your next order throw a handful of 0.5 and 1 ohm resistors in the cart so that you can play with.

                                  Keep us posted on your progress.
                                  Yeah, I still gotta buy all the surround speaker parts 8O

                                  I'll add in all that stuff there. CJD mentioned padding down the tweeter a bit for on wall mounting, does he mean to get an adjustable L-pad or just get a bunch of resistors or something else entirely?
                                  -Chris B

                                  ;x( DIY

                                  Comment

                                  • ---k---
                                    Ultra Senior Member
                                    • Nov 2005
                                    • 5202

                                    #18
                                    I've read a couple of times people recommending an adjustable l-pad to find the level you want, but then replacing the adjustable with a real l-pad, because I guess the adjustable can be a bit noisy. That's just what I've read, so take it fr what it is worth.
                                    - Ryan

                                    CJD Ochocinco! ND140/BC25SC06 MTM & TM
                                    CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
                                    CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

                                    Comment

                                    • crackyflipside
                                      Senior Member
                                      • Nov 2006
                                      • 197

                                      #19
                                      All the parts came in today (except the L-pad) I'll order one when ordering the parts for the surround speakers, now is time to make crossovers.
                                      -Chris B

                                      ;x( DIY

                                      Comment

                                      • ---k---
                                        Ultra Senior Member
                                        • Nov 2005
                                        • 5202

                                        #20
                                        How are the boxes coming?
                                        - Ryan

                                        CJD Ochocinco! ND140/BC25SC06 MTM & TM
                                        CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
                                        CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

                                        Comment

                                        • crackyflipside
                                          Senior Member
                                          • Nov 2006
                                          • 197

                                          #21
                                          Originally posted by ---k---
                                          How are the boxes coming?
                                          Not yet, there's a lot of work to do but I'll keep you up to date with everything!
                                          -Chris B

                                          ;x( DIY

                                          Comment

                                          • kevinp.
                                            Senior Member
                                            • Apr 2008
                                            • 107

                                            #22
                                            wait the mids are wired in series but they're still the 8 ohm versions? Is that right?

                                            Comment

                                            • cjd
                                              Ultra Senior Member
                                              • Dec 2004
                                              • 5568

                                              #23
                                              For those of you wanting to tweak levels: I think you'll find far less need to do any level adjusting on the tweeter, but perhaps more on the mids, where I suggest adding series impedance in small doses, 1/2 or 1ohm, no more than 2ohm. If you do this, you may find a similar adjustment is helpful on the tweeter.

                                              Also note that applying the impedance before the network has different results than adding it immediately before the drivers, but after the network. So if you share your tweaks, be very specific about how you wired things up.

                                              I never recommend static parallel impedance if it can be avoided, which is why I try to sensitivity match in other ways.

                                              Originally posted by kevinp.
                                              wait the mids are wired in series but they're still the 8 ohm versions? Is that right?
                                              Yes. See my comment above about matching sensitivity to perhaps make more sense out of it.

                                              C
                                              diVine Sound - my DIY speaker designs at diVine Audio

                                              Comment

                                              • crackyflipside
                                                Senior Member
                                                • Nov 2006
                                                • 197

                                                #24
                                                Hopefully the speaker wire and electrical barrier strips will show up some time this week, when they'll do I'll start the crossovers.
                                                -Chris B

                                                ;x( DIY

                                                Comment

                                                • crackyflipside
                                                  Senior Member
                                                  • Nov 2006
                                                  • 197

                                                  #25
                                                  Click for larger picture.

                                                  Image not available

                                                  Just did the tweeters, as you can see the one on the left was the first one as the rest look much nicer :lol:

                                                  I did not mount them to the wood yet cause I haven't cut the pieces yet and the tweeter x-over is pretty small so just did them like this. Things noticed: hurts like hell to bend those capacitor wires near the end and hot glue tends to not hold too well; going to use silicone from now on to glue parts together and to the boards. I'll wait till I'm done with all the other x-overs to post more pictures, this is just to let you guys know they have begun to be built.
                                                  Last edited by theSven; 25 June 2023, 00:02 Sunday. Reason: Remove broken image link
                                                  -Chris B

                                                  ;x( DIY

                                                  Comment

                                                  • ---k---
                                                    Ultra Senior Member
                                                    • Nov 2005
                                                    • 5202

                                                    #26
                                                    :T Those look great (and very familiar.)

                                                    Hey, just a reminder when you go to do the woofer crossover with the big 12ga inductors from Madisound. The ends on those don't have the coating removed. You need to take a knife and/or sandpaper to remove the coating from the ends where you solder. - That just popped in my head, and I don't think I've ever seen anyone else mention it.

                                                    BTW, what is the sensitivity listed on the side of your RS28s?
                                                    - Ryan

                                                    CJD Ochocinco! ND140/BC25SC06 MTM & TM
                                                    CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
                                                    CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

                                                    Comment

                                                    • crackyflipside
                                                      Senior Member
                                                      • Nov 2006
                                                      • 197

                                                      #27
                                                      Originally posted by ---k---
                                                      :T Those look great (and very familiar.)

                                                      Hey, just a reminder when you go to do the woofer crossover with the big 12ga inductors from Madisound. The ends on those don't have the coating removed. You need to take a knife and/or sandpaper to remove the coating from the ends where you solder. - That just popped in my head, and I don't think I've ever seen anyone else mention it.

                                                      BTW, what is the sensitivity listed on the side of your RS28s?
                                                      90 +0.2
                                                      90
                                                      90 +0.4
                                                      -Chris B

                                                      ;x( DIY

                                                      Comment

                                                      • ---k---
                                                        Ultra Senior Member
                                                        • Nov 2005
                                                        • 5202

                                                        #28
                                                        Perfect!
                                                        - Ryan

                                                        CJD Ochocinco! ND140/BC25SC06 MTM & TM
                                                        CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
                                                        CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

                                                        Comment

                                                        • crackyflipside
                                                          Senior Member
                                                          • Nov 2006
                                                          • 197

                                                          #29
                                                          Can you double check this wiring for the woofer make sure I got it right? Nothing is glued on the wood board yet, gotta pick up that silicone to glue it.

                                                          Image not available
                                                          Last edited by theSven; 25 June 2023, 00:02 Sunday. Reason: Remove broken image link
                                                          -Chris B

                                                          ;x( DIY

                                                          Comment

                                                          • ---k---
                                                            Ultra Senior Member
                                                            • Nov 2005
                                                            • 5202

                                                            #30
                                                            Looks right. You don't have your + and - on the terminal strip labeled, so you could always make a mistake there, but that isn't a big deal.
                                                            - Ryan

                                                            CJD Ochocinco! ND140/BC25SC06 MTM & TM
                                                            CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
                                                            CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

                                                            Comment

                                                            • ---k---
                                                              Ultra Senior Member
                                                              • Nov 2005
                                                              • 5202

                                                              #31
                                                              Just an update for those of you looking for some matching surrounds that offer a bit of overkill.

                                                              It is going to be a while, but CJD and I are cooking up something special for the summer. Thus, I present you the:

                                                              "In-Khan-Neatos"
                                                              In-wall 3-way WMT (or maybe a WTM), likely with an on-wall variation.
                                                              RS180-4 / RS150-8/ RS28

                                                              I took advantage of PE's free shipping and $20 cash to get all the parts. Unfortunately, I got other things I should be doing on the weekends, so the boxes aren't going to get built for a while.

                                                              Click image for larger version

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                                                              - Ryan

                                                              CJD Ochocinco! ND140/BC25SC06 MTM & TM
                                                              CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
                                                              CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

                                                              Comment

                                                              • cjd
                                                                Ultra Senior Member
                                                                • Dec 2004
                                                                • 5568

                                                                #32
                                                                You've always got a good name for your projects. I like it.
                                                                diVine Sound - my DIY speaker designs at diVine Audio

                                                                Comment

                                                                • Xander
                                                                  Senior Member
                                                                  • Dec 2007
                                                                  • 132

                                                                  #33
                                                                  Originally posted by crackyflipside
                                                                  Things noticed: hurts like hell to bend those capacitor wires near the end
                                                                  I always use pliers...

                                                                  Comment

                                                                  • crackyflipside
                                                                    Senior Member
                                                                    • Nov 2006
                                                                    • 197

                                                                    #34
                                                                    Some options I have:

                                                                    -Ok so I can extend the speaker's height to a total of 88" increasing box volume a lot for the woofers. Since they are wall mounted and hidden, it will be fine.

                                                                    -I can even connect the top of the speaker so it vents into the soffit and make it an IB speaker (although the soffit already serves as the IB sub's "box" so that must be taken in consideration).

                                                                    Tell me your opinions on these two or if I'm going to have to stick with the plain Jane design on the first post. Also, will be making the enclosure out of finished plywood, might cost a bit more but prefer to work with it. Will start building them relatively soon.
                                                                    -Chris B

                                                                    ;x( DIY

                                                                    Comment

                                                                    • ---k---
                                                                      Ultra Senior Member
                                                                      • Nov 2005
                                                                      • 5202

                                                                      #35
                                                                      I don't see a need to increase the volume of the speakers. It is already a very large enclosure to get the most extended bass. Increasing the volume will actually decrease the bass slightly between ~ 60hz - 150hz. Conversly, decreasing the volume will increase the bass between ~ 60hz - 150hz. Very very slightly. It also changes the roll off. Not worth really getting hung up on because stuffing can be used to tune. Run a Unibox sim to see.

                                                                      If you're looking to increase the height to decress the depth, see my comments in the FAQ in the first post. But basically, it is possible until you start interfeering with the tunell between the woofers.

                                                                      I built mine with expensive brich ply also. Very solid. :T
                                                                      - Ryan

                                                                      CJD Ochocinco! ND140/BC25SC06 MTM & TM
                                                                      CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
                                                                      CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

                                                                      Comment

                                                                      • ---k---
                                                                        Ultra Senior Member
                                                                        • Nov 2005
                                                                        • 5202

                                                                        #36
                                                                        Uploading new, current pricing. Those price increases hurt. About 20% since February on the basic build. OUCH!

                                                                        In the BASIC Bom, I also switched the caps in the woofer circuit to electrolytic. You have to wire the 100uf and 80uf together to get the 180uf speced. This saves about $34 per speaker. Zaph and others use them, so they can't be that bad. The polypropylene I used are in the upgraded.

                                                                        I didn't use any sale pricing, even though the the RS225 is currently on sale at a good price.

                                                                        Click image for larger version

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                                                                        Last edited by theSven; 25 June 2023, 00:03 Sunday. Reason: Update image location
                                                                        - Ryan

                                                                        CJD Ochocinco! ND140/BC25SC06 MTM & TM
                                                                        CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
                                                                        CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

                                                                        Comment

                                                                        • crackyflipside
                                                                          Senior Member
                                                                          • Nov 2006
                                                                          • 197

                                                                          #37
                                                                          Image not available

                                                                          Routing tomorrow.
                                                                          Last edited by theSven; 25 June 2023, 00:02 Sunday. Reason: Remove broken image link
                                                                          -Chris B

                                                                          ;x( DIY

                                                                          Comment

                                                                          • ---k---
                                                                            Ultra Senior Member
                                                                            • Nov 2005
                                                                            • 5202

                                                                            #38
                                                                            Wow, nice tile. You should protect that with a rug or something.
                                                                            - Ryan

                                                                            CJD Ochocinco! ND140/BC25SC06 MTM & TM
                                                                            CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
                                                                            CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

                                                                            Comment

                                                                            • crackyflipside
                                                                              Senior Member
                                                                              • Nov 2006
                                                                              • 197

                                                                              #39
                                                                              Originally posted by cjd
                                                                              Just build the center offset one way or another. It's not *that* obvious - only 1/2" off center. Keep the R and L with the tweeter offset to the outside as usual. (yes, you read that right). If you've got one "wide" side to the room, offset the center tweeter the other way. (Dispersion off-axis is more even on the "wide" side of the baffle)

                                                                              C
                                                                              Re-reading this, so tweeters are on the outside? Why on K's picture is the tweeters to the inside?
                                                                              -Chris B

                                                                              ;x( DIY

                                                                              Comment

                                                                              • ---k---
                                                                                Ultra Senior Member
                                                                                • Nov 2005
                                                                                • 5202

                                                                                #40
                                                                                You can put them either inside or outside. It is a personal preference thing and you should try both. If I understand it correctly, if you put the tweeters on the inside you will have a slightly smoother frequency response at your sweetspot. But, if you put the tweeters on the outside, you'll spread this over the flatter frequency response out more and possibly get a little wider sweet spot. It is very minute differences. I've had it both ways and taken pictures randomly. It is easy to try and find what you like.
                                                                                - Ryan

                                                                                CJD Ochocinco! ND140/BC25SC06 MTM & TM
                                                                                CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
                                                                                CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center

                                                                                Comment

                                                                                • cjd
                                                                                  Ultra Senior Member
                                                                                  • Dec 2004
                                                                                  • 5568

                                                                                  #41
                                                                                  Off-axis droop is less on the "wide" side of the tweeter - if you've got these closer to outside walls, this droop can actually help reduce initial energy from reflections through a rather critical upper midrange area, so you put the tweeters on the outside... counter intuitive, right?

                                                                                  At the last Chicago DIY event I set up my MTM's tweeter to the outside and of course some "ultra" audiophile type asked me why rather condescendingly (as in "why did you set those up wrong with the tweeter on the outside?") - my reply: there's 8 rows of chairs with lots of people... off-axis response is much smoother on the wide side, which means that, while the sweet spot isn't as vise-like, it's a better overall presentation for the group. He at least admitted he'd never even thought about that kind of thing...
                                                                                  diVine Sound - my DIY speaker designs at diVine Audio

                                                                                  Comment

                                                                                  • crackyflipside
                                                                                    Senior Member
                                                                                    • Nov 2006
                                                                                    • 197

                                                                                    #42
                                                                                    Well got one for rough audio testing, here it is with the sub and no EQ on either, mic was ~2m away, maybe a little bit more at listening position. No room treatment at all and no roundover on speaker yet. Have the more in-depth info on avsforums. Only goes up to 10khz because I'm using spl meter as mic and since it isn't accurate up that high, just left the limit of the sweeps to 10khz.

                                                                                    Image not available

                                                                                    First impressions: extremely detailed and clear midrange/vocal-range especially at higher SPLs.
                                                                                    Last edited by theSven; 25 June 2023, 00:02 Sunday. Reason: Remove broken image link
                                                                                    -Chris B

                                                                                    ;x( DIY

                                                                                    Comment

                                                                                    • cjd
                                                                                      Ultra Senior Member
                                                                                      • Dec 2004
                                                                                      • 5568

                                                                                      #43
                                                                                      Ok, so my first impression here is "holy crap"

                                                                                      Sub is a little hot!

                                                                                      Is this corrected values? That doesn't even look like the midrange is remotely overbearing. I should double check my mic.
                                                                                      diVine Sound - my DIY speaker designs at diVine Audio

                                                                                      Comment

                                                                                      • crackyflipside
                                                                                        Senior Member
                                                                                        • Nov 2006
                                                                                        • 197

                                                                                        #44
                                                                                        Originally posted by cjd
                                                                                        Ok, so my first impression here is "holy crap"

                                                                                        Sub is a little hot!

                                                                                        Is this corrected values? That doesn't even look like the midrange is remotely overbearing. I should double check my mic.
                                                                                        Yeah, the pink noise was calibrated right with the sub but I guess not. It has the calibration file for the SPL meter as mic and I also round a soundcard loop to calibrate the soundcard. I really gotta get tha sub eq'd and get the room treatments in.

                                                                                        Is your holy crap a good or bad one? I think it sounds really good (turned down the sub)
                                                                                        Last edited by crackyflipside; 03 January 2009, 18:05 Saturday.
                                                                                        -Chris B

                                                                                        ;x( DIY

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                                                                                        • cjd
                                                                                          Ultra Senior Member
                                                                                          • Dec 2004
                                                                                          • 5568

                                                                                          #45
                                                                                          Seems nice and flat is all. Especially for no roundover and whatnot.
                                                                                          diVine Sound - my DIY speaker designs at diVine Audio

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