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Dayton Audio Reference Series High Excursion

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  • Dayton Audio Reference Series High Excursion

    Man, I guess we know what the people at Dayton Audio were doing over the last year in isolation...coming up with a bunch of new products!

    https://www.parts-express.com/promo/reference-he-series

    (Now if they could just get those new Epique subs off the slow boat from China and onto my front step.)

  • #2
    I thought higher excursion versions of the ReferenceSeries/RSS subs were what the Ultimax series were. Now I'm curious where these fit in.
    EDIT: looks like they're higher efficiency, wattage, XMAX and price than the Ultimax, but don't reach quite as low with higher FS?
    My first 2way build

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    • #3
      Nice
      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.

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      • #4
        Is there any data to back up the Xmax claim? Adding "1/3 of the top plate thickness" seems pretty arbitrary.
        Don't listen to me - I have not sold any $150,000 speakers.

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        • #5
          SB Audio is using the same method of late - not sure what it means but it seems to be a recent trend . . .

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          • #6
            It's what you do when you don't use Klippel. Using the Klippel standard of xmax being where 10% THD is reached it's almost always longer than the traditional coil length top plate calc. Adding 1/3 the top plate thickness to that would seem an effort to get a number closer to the Klippel, but yes, it is arbitrary.
            www.billfitzmaurice.com
            www.billfitzmaurice.info/forum

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            • #7
              Of course if you supercharge, Xmax doubles, at least.
              Francis

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              • #8
                It will be interesting to see how the 18" model (assuming it materializes eventually) will compare to the Ultimax 18 which slightly out classes the RSS460HO.
                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.

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                • #9
                  These drivers do look very interesting. I ran a few simulations and really like what I see. Smaller vented enclosures can get down below 20 Hz easily. Port size can be tricky though. But lots of options for sure. Would love to see a complimentary pair of these as passive radiators. That massive excursion would make them pair great with the regular RS series without needed to go up in size (ie, pair a 12 with a 12). For anyone interested, I noticed their spec sheet actually shows a cross section of the motor assembly, something they normally don't show, so I grabbed a screen shot and re-drew it to scale with some CAD software. With that I was able to take measurements of all of the more interesting parameters. Xmax comes in exactly at ±27mm just as specified with Xmech being around ±36mm. The vent is a whopping 35mm as well. So very nice. Accuracy of my drawing is probably about ±0.3mm, best I can guess. Other dimensions are shown as well. Anyway, these look like fun drivers, a great addition to the Dayton Audio line-up. Now I just need an excuse to build a sub. =)

                  Click image for larger version

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                  • #10
                    Would these be suitable for a sealed enclosure with a lot of power and DSP/EQ to get it to dig down deeper? Or would these be better suited for ported designs?

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                    • #11
                      Originally posted by lamski View Post
                      Would these be suitable for a sealed enclosure with a lot of power and DSP/EQ to get it to dig down deeper? Or would these be better suited for ported designs?
                      They'll work fine in sealed.
                      Francis

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                      • #12
                        Originally posted by fpitas View Post

                        They'll work fine in sealed.
                        For the 15" HE, would the 3cf sealed enclosure PE offers be a good choice or would the 4cf sealed enclosure be better? I think I have the space for either one.

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                        • #13
                          Originally posted by lamski View Post

                          For the 15" HE, would the 3cf sealed enclosure PE offers be a good choice or would the 4cf sealed enclosure be better? I think I have the space for either one.
                          Running a quick SIM in AJ Sealed, 3cf or 4cf should work fine. I'd use the 3cf and stuff it well to absorb harmonics. Not particularly crucial for a sub, but I like to do that.
                          Francis

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                          • #14
                            Can anyone say whether 18" models are planned and a guess at the timeline. If they model nicely in a 4cuft sesled box and pe we're to open preorders, I'd have my credit card out.
                            - Ryan

                            CJD Ochocinco ND140/BC25SC06 MTM & TM
                            CJD Khanspires - A Dayton RS28/RS150/RS225 WMTMW
                            CJD Khancenter - A Dayton RS28/RS150/RS180 WTMW Center
                            CJD In-Khan-Neatos - A Dayton RS180/RS150/RS28 In/On Wall MTW

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