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Coming soon... Epique E150HE-44 and E180HE-44

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  • #46
    Originally posted by Chris_Perez View Post

    The specs Dan posted was from an earlier pre-production prototype with a weaker motor and different surround profile (the specs Dan posted show a piston diameter of 5.31", the production version is 5.18") . The current specs on the website are from production samples and should be very close to the actual mass produced versions. You should disregard the parameters that Dan posted (sorry Dan )

    I hate to be the bearer of bad news, but we recently received a shipping update and the drivers are currently being held offshore (most likely the ship is waiting to be unloaded, or holding for available rail service). The ETA has been delayed to late June (but with the current state of things they may not be here until July).

    -Chris P
    Thank you for giving us an update Chris.

    TomZ
    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


    • #47
      Its been nearly a month, so I gotta ask...
      Is there an update on these that PE can share?

      TomZ
      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


      • #48
        Originally posted by tomzarbo View Post
        Its been nearly a month, so I gotta ask...
        Is there an update on these that PE can share?

        TomZ
        Tom, did you order any? I get an update every Tuesday on my order...so far it has said the same thing each time..."Item #295-104 - Epique E180HE-44 7" DVC MMAG Extended Range Subwoofer 4 Ohm per Coil from order #xxxxxxxxx. Awaiting arrival date."

        Comment


        • #49
          I didn't yet, I wanted to see the production unit specs first to be sure they would work for my intended application.
          TomZ
          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


          • #50
            Originally posted by tomzarbo View Post
            Its been nearly a month, so I gotta ask...
            Is there an update on these that PE can share?
            We are expecting the Epique drivers any day now.

            The current state of fright shipping is making it very difficult to get accurate ETA's, but we do know that these have made it through the port and are on route. So, it shouldn't be long now.

            Comment


            • #51
              Originally posted by [email protected] View Post

              We are expecting the Epique drivers any day now.

              The current state of fright shipping is making it very difficult to get accurate ETA's, but we do know that these have made it through the port and are on route. So, it shouldn't be long now.
              Fantastic, thank you for the update.

              TomZ
              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


              • #52
                Originally posted by tomzarbo View Post

                Fantastic, thank you for the update.

                TomZ
                Good news. Time to start building more speakers.
                SideTowers: http://techtalk.parts-express.com/fo...corundum-build
                Totally Flat: http://techtalk.parts-express.com/fo...5-totally-flat
                Plumber's Delight: http://techtalk.parts-express.com/fo...notech-winners
                Linehopper: http://techtalk.parts-express.com/sh...Esoteric-build

                Comment


                • #53
                  Originally posted by [email protected] View Post
                  Here's a quick sneak peek at the upcoming E150HE-44 5.5" and E180HE-44 7" drivers for Dayton Audio's Epique line.

                  In this case, these drivers have a nearly flat Bl curve to +-10 mm of excursion, they have over 70% Bl at +-14 mm.

                  More than just high excursion... The voice coil is fairly short so inductance is kept to a minimum. They also have a thick copper cap on the pole piece to help keep inductance linear. All of this creates an extremely low distortion motor system.
                  That really sounds like an very exciting driver design.

                  Is it possible to share the BL curve and the Lx curve like this thread (https://techtalk.parts-express.com/f...0#post981510)?

                  Thanks!

                  Comment


                  • #54
                    Originally posted by DeZZar View Post


                    In any case I don't see the excursion differences of this woofer vs any other woofer successfully used in a two-way having a materially greater effect such that it becomes discernable.
                    You need to test that theory before stating it so confidently. Large excursion will absolutely impact the reproduction of higher frequencies played from the same diaphragm/cone in a negative manner, to an even greater degree as excursion increases.


                    Being defeated is often a temporary condition. Giving up is what makes it permanent.

                    Scanspeak Revelator R2904/7000's, Scanspeak Revelator 15M/4531K00's, Scanspeak Revelator 22W/8857T00's, Eminence NSW6021's.
                    MiniDSP 4x10HD. ICE Power amplification and an iNuke 3000.

                    Sennheiser HD650's powered by TEAC amplification.

                    Comment


                    • DeZZar
                      DeZZar commented
                      Editing a comment
                      I am comfortable with my statement. The gist of what I was saying is that this drivers x-max specification ALONE is not going to be the determining factor as to how successfully it can be used in a two-way system. Of course distortion effects might be greater AT that specified x-max. So what. Just because one driver can play harder doesn't mean that its distortion characteristics AT that extended x-max make it wholly unsuitable. Who realistically listens to speakers at their x-max? Two woofers, one with x-max of 6mm and one with x-max of 11mm, playing at the same level (say 4mm excursion)...the one with more x-max headroom is not going to exhibit any greater doppler distortion just because it happens to have higher excursion capabilities.

                    • Ray Tremblay
                      Ray Tremblay commented
                      Editing a comment
                      You're comfortable with your statement now because you believe you've back pedaled successfully enough to convinced others that you meant something completely different?

                  • #55
                    Originally posted by Ray Tremblay View Post

                    You need to test that theory before stating it so confidently. Large excursion will absolutely impact the reproduction of higher frequencies played from the same diaphragm/cone in a negative manner, to an even greater degree as excursion increases.

                    Purifi has an interesting blog talking about AM(amplitude modulation) and FM(phase modulation). Most drivers suffer both with large excursion, but Purifi has much less AM and mostly FM, which should be much less audible.
                    https://purifi-audio.com/2019/12/07/amfm/

                    Comment


                    • #56
                      Originally posted by racingpht View Post
                      Most drivers suffer both with large excursion, but Purifi has much less AM and mostly FM, which should be much less audible.
                      Have you personally tested their drivers (Purifi) to come to that conclusion? Or just read their or their affiliates marketing literature?

                      And what does Purifi's claims have to do with the drivers we're discussing here in this thread?
                      Being defeated is often a temporary condition. Giving up is what makes it permanent.

                      Scanspeak Revelator R2904/7000's, Scanspeak Revelator 15M/4531K00's, Scanspeak Revelator 22W/8857T00's, Eminence NSW6021's.
                      MiniDSP 4x10HD. ICE Power amplification and an iNuke 3000.

                      Sennheiser HD650's powered by TEAC amplification.

                      Comment


                      • #57
                        Originally posted by DeZZar
                        The gist of what I was saying is that this drivers x-max specification ALONE is not going to be the determining factor as to how successfully it can be used in a two-way system.
                        So now that you're trying to back pedal, you'll try to imply that you were referring to the use of this woofer well below it's Xmax. You weren't, which is apparent to anyone who goes back and reads LOUT's post which you were responding to when you made the statement. Nice try though.

                        LOUT's question:
                        Originally posted by LOUT View Post
                        Would it be a doppler distortion disaster to build a 2way with this while trying to take advantage of that XMAX?
                        Your response to LOUT's question:
                        Originally posted by DeZZar View Post
                        I don't see the excursion differences of this woofer vs any other woofer successfully used in a two-way having a materially greater effect such that it becomes discernable.
                        Being defeated is often a temporary condition. Giving up is what makes it permanent.

                        Scanspeak Revelator R2904/7000's, Scanspeak Revelator 15M/4531K00's, Scanspeak Revelator 22W/8857T00's, Eminence NSW6021's.
                        MiniDSP 4x10HD. ICE Power amplification and an iNuke 3000.

                        Sennheiser HD650's powered by TEAC amplification.

                        Comment


                        • #58
                          Being defeated is often a temporary condition. Giving up is what makes it permanent.

                          Scanspeak Revelator R2904/7000's, Scanspeak Revelator 15M/4531K00's, Scanspeak Revelator 22W/8857T00's, Eminence NSW6021's.
                          MiniDSP 4x10HD. ICE Power amplification and an iNuke 3000.

                          Sennheiser HD650's powered by TEAC amplification.

                          Comment


                          • #59
                            Originally posted by Ray Tremblay View Post

                            Have you personally tested their drivers (Purifi) to come to that conclusion? Or just read their or their affiliates marketing literature?

                            And what does Purifi's claims have to do with the drivers we're discussing here in this thread?
                            Why not read the webpage carefully and learn something yourself?

                            1: Doppler distortion modulate phase but not amplitude.
                            2: Phase modulation(FM) is much less audible than amplitude modulation(AM) at the same level, as far as I'm concerned.
                            3: Any one can listen and compare FM and AM themselves on the webpage I provided.

                            Conclusion is: high Xmax does causes doppler distortion, but doppler distortion itself is not the real problem for high xmax drivers.

                            Comment


                            • #60
                              Originally posted by racingpht View Post
                              Why not read the webpage carefully and learn something yourself?
                              I've learned about the subject from conducting real tests with real drivers in the real world. Have you?

                              I'll ask the question again since you keep dodging it. What does Purifi's claims have to do with the drivers we're discussing here in this thread? Care to actually answer it this time without trying to hide behind someone else's article?
                              Being defeated is often a temporary condition. Giving up is what makes it permanent.

                              Scanspeak Revelator R2904/7000's, Scanspeak Revelator 15M/4531K00's, Scanspeak Revelator 22W/8857T00's, Eminence NSW6021's.
                              MiniDSP 4x10HD. ICE Power amplification and an iNuke 3000.

                              Sennheiser HD650's powered by TEAC amplification.

                              Comment

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