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Zaph Audio ZRT 2 way Revelator Tower, Opinions?

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  • Zaph Audio ZRT 2 way Revelator Tower, Opinions?

    Well, i may be getting this kit from madisound. Anyone have it, opinions?
    If you have 1000$ to buy speaker kits from madi, is this what you would get?

    Any help woud be great as this is my first leap into higher dollar speakers
    Check out my website: www.uberstealthaudio.com.
    Now offering cnc cut baffles and other speaker cabinet parts

  • #2
    Re: Zaph Audio ZRT 2 way Revelator Tower, Opinions?

    We heard it at the InDIYana event. Very nice, but the system did require tweaking in the bass alignment and XO (less BSC), since the woofer specs have changed somewhat since the original design was put out.

    Build your own cabinet (I'm sure you will Nik ;) ) as the Mad cabinet is a bit wimpy.
    R = h/(2*pi*m*c) and don't you forget it! || Periodic Table as redrawn by Marshall Freerks and Ignatius Schumacher || King Crimson Radio
    Byzantium Project & Build Thread || MiniByzy Build Thread || 3 x Peerless 850439 HDS 3-way || 8" 2-way - RS28A/B&C8BG51

    95% of Climate Models Agree: The Observations Must be Wrong
    "Gravitational systems are the ashes of prior electrical systems.". - Hannes Alfven, Nobel Laureate, Plasma physicist.

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    • #3
      Re: Zaph Audio ZRT 2 way Revelator Tower, Opinions?

      has madi updated the crossover? i bet they have as they seem to stay on top of this stuff. Yes, 1000$ only covers the parts, so i will get just the kit.

      Madi offers someother high end kits, any one heard any of them?
      Check out my website: www.uberstealthaudio.com.
      Now offering cnc cut baffles and other speaker cabinet parts

      Comment


      • #4
        Re: Zaph Audio ZRT 2 way Revelator Tower, Opinions?

        How about Curt/Wayne's Mini-Statements or Statements? Seems like you could build and go under the $1000
        I was so much older then, I'm younger than that now.
        OS MTMs http://techtalk.parts-express.com/sh...d.php?t=220388
        Swope TM http://techtalk.parts-express.com/sh...d.php?t=221818
        Econowave and Audio Nirvana AN10 fullrange http://techtalk.parts-express.com/sh...d.php?t=216841
        Imperial Russian Stouts http://techtalk.parts-express.com/sh...=1#post1840444
        LECBOS. http://techtalk.parts-express.com/sh...ghlight=lecbos

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        • #5
          Re: Zaph Audio ZRT 2 way Revelator Tower, Opinions?

          We heard it at the InDIYana event. Very nice, but the system did require tweaking in the bass alignment and XO (less BSC), since the woofer specs have changed somewhat since the original design was put out.
          I saw that mentioned in the DIY notes and was curious about it. I built the ZAPH SR-71 a couple of years ago (when it was first released) and found it a bit "dark", as he calls it. Maybe thats the way he likes it? Fortunately he supplies several tweaks for less BSC and boosting the tweeter level, which I used. Actually, that's one of the things that drove me to choose the Lineup R44 vs ZRT for my new system. ie Just to get another point of view (plus the ribbon).


          BTW - as far the "the speakers have changed theory" ZAPH posted:

          "So far to date in 2010, there have been no significant variations that would require a crossover update to the ZRT design."
          Last edited by jeff_free69; 05-06-2010, 04:11 PM.
          BEER: Proof that God loves us and wants us to be happy

          I've measured many things I cannot hear; and heard things I cannot measure...

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          • #6
            Re: Zaph Audio ZRT 2 way Revelator Tower, Opinions?

            well, thing is i have ta credit for that much with madi, so thats where the kit will be from.

            Also, i wouldlike it to be a kit, so i can offer cabinets to fit that kit if anyone ever needs them
            Check out my website: www.uberstealthaudio.com.
            Now offering cnc cut baffles and other speaker cabinet parts

            Comment


            • #7
              Re: Zaph Audio ZRT 2 way Revelator Tower, Opinions?

              How about Zaph's big SB Acoustics 3way with the 12" woofer? Madisound does not offer a cab for that one. Or One of Zaph's designs based on his new mid woofer? Much more HT system friendly if you decide to go that way. You could get a whole 5 speaker system for that money. I don't see that Madisound offers any cabs for those except the little sealed TM.

              Comment


              • #8
                Re: Zaph Audio ZRT 2 way Revelator Tower, Opinions?

                What, no love for Eton?
                Isn't it about time we started answering rhetorical questions?

                Paul Carmody's DIY Audio Projects
                Twitter: @undefinition1

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                • #9
                  Re: Zaph Audio ZRT 2 way Revelator Tower, Opinions?

                  i was thinking the eton 8.1 or 8.2 even

                  I dont have room for the big zaphs

                  I have already done cabinets for the ZA5's ( i have the drivers in my closet for fit testing if you need any cabinets)

                  I already have a 7.1 HT setup in zebra wood, so i just need a pair or (trophy" speakers for the living room or master bedroom
                  Check out my website: www.uberstealthaudio.com.
                  Now offering cnc cut baffles and other speaker cabinet parts

                  Comment


                  • #10
                    Re: Zaph Audio ZRT 2 way Revelator Tower, Opinions?

                    I've had mine for over a year now, and I like them quite fine I agree with Pete on the cabs and will probably upgrade my ZRT cabinets at some time. Also, I will NOT sell or trade these speakers.

                    My ZRT's are adjusted as follows:
                    1.) 2.5" tube between 2" precision port flares
                    2.) Extra Acousta-stuf in box chamber between woofer and port (this worked very nicely indeed with higher Q drivers!)
                    3.) 2.5mH series coil on woofer (2.7 is stock). It helped with the overall bass balance, and is only an 8% change in stock value, well within his tweaking parameters. I also just liked it better.
                    4.) 6 Ohm tweeter resistor.

                    They are a very good design, have totally spoiled me, and were well-received at InDIYana this year.

                    In fact, I am planning selling off my entire driver stock, sub amps, etc. this summer to finance a Scan 3-Way (all rev drivers) probably next winter. That means anyone local to Louisville will get some killa-deals. After fighting with the HiVi F8 trying to get it's upper midrange right for months, it would just be a joy to have drivers that don't require tanked coils, notches, etc...

                    Cheers / Robert

                    Cheers / Robert

                    Comment


                    • #11
                      Re: Zaph Audio ZRT 2 way Revelator Tower, Opinions?

                      Originally posted by jeff_free69 View Post
                      BTW - as far the "the speakers have changed theory" ZAPH posted:

                      "So far to date in 2010, there have been no significant variations that would require a crossover update to the ZRT design."
                      Hello,

                      I can build on that comment a little. Specifically, the response curve, impedance and sensitivity have not changed. Therefore, no crossover changes needed. Driver Qts is a little higher and Vas is a little lower. It still works well in that box size as designed, however bass tuning is more of a personal preference. This is why I usually recommend that people play with the tuning to find something that suits them and their room.

                      At this point a lot of ZRT's have been built and I have the benefit of lots of feedback. That feedback is all over the map - Too lean, not enough bass all the way to "heavy sounding, too much BSC". I think it's almost 50/50 in that regard and it just drives home the fact that bass tuning preference is personal and largely affected by the room.

                      If anyone is interested, here is a recent T/S measurement of the woofer.

                      edit: damn, the forum shrunk my image into garbage, sorry.
                      edit again: Qts .50,Vas 41.3 liters, Fs 33Hz.
                      Attached Files

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                      • #12
                        Re: Zaph Audio ZRT 2 way Revelator Tower, Opinions?

                        Originally posted by jkrutke View Post
                        edit: damn, the forum shrunk my image into garbage, sorry.
                        edit again: Qts .50,Vas 41.3 liters, Fs 33Hz.
                        With Qts at .5, sensitivity to volume and tuning will be quite high.

                        A smaller enclosure and low tuning might be the way to go. Give up a little F3 for an extended F10, and a more forgiving in-room bass response.
                        R = h/(2*pi*m*c) and don't you forget it! || Periodic Table as redrawn by Marshall Freerks and Ignatius Schumacher || King Crimson Radio
                        Byzantium Project & Build Thread || MiniByzy Build Thread || 3 x Peerless 850439 HDS 3-way || 8" 2-way - RS28A/B&C8BG51

                        95% of Climate Models Agree: The Observations Must be Wrong
                        "Gravitational systems are the ashes of prior electrical systems.". - Hannes Alfven, Nobel Laureate, Plasma physicist.

                        Comment


                        • #13
                          Re: Zaph Audio ZRT 2 way Revelator Tower, Opinions?

                          + 1
                          Originally posted by robert View Post
                          I've had mine for over a year now, and I like them quite fine I agree with Pete on the cabs and will probably upgrade my ZRT cabinets at some time. Also, I will NOT sell or trade these speakers.

                          My ZRT's are adjusted as follows:
                          1.) 2.5" tube between 2" precision port flares
                          2.) Extra Acousta-stuf in box chamber between woofer and port (this worked very nicely indeed with higher Q drivers!)
                          3.) 2.5mH series coil on woofer (2.7 is stock). It helped with the overall bass balance, and is only an 8% change in stock value, well within his tweaking parameters. I also just liked it better.
                          4.) 6 Ohm tweeter resistor.

                          They are a very good design, have totally spoiled me, and were well-received at InDIYana this year.

                          In fact, I am planning selling off my entire driver stock, sub amps, etc. this summer to finance a Scan 3-Way (all rev drivers) probably next winter. That means anyone local to Louisville will get some killa-deals. After fighting with the HiVi F8 trying to get it's upper midrange right for months, it would just be a joy to have drivers that don't require tanked coils, notches, etc...

                          Cheers / Robert

                          Cheers / Robert

                          Comment


                          • #14
                            Re: Zaph Audio ZRT 2 way Revelator Tower, Opinions?

                            With Qts at .5, sensitivity to volume and tuning will be quite high.

                            A smaller enclosure and low tuning might be the way to go. Give up a little F3 for an extended F10, and a more forgiving in-room bass response.
                            16.52ltrs?
                            "Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy." --Winston Churchill

                            Comment


                            • #15
                              Re: Zaph Audio ZRT 2 way Revelator Tower, Opinions?

                              Originally posted by robwest View Post
                              16.52ltrs?
                              16L would be way too small with the TS parameters Zaph posted. Tuning very low, ~25Hz, in 50L keeps peaking in the response down to a minimum.

                              R = h/(2*pi*m*c) and don't you forget it! || Periodic Table as redrawn by Marshall Freerks and Ignatius Schumacher || King Crimson Radio
                              Byzantium Project & Build Thread || MiniByzy Build Thread || 3 x Peerless 850439 HDS 3-way || 8" 2-way - RS28A/B&C8BG51

                              95% of Climate Models Agree: The Observations Must be Wrong
                              "Gravitational systems are the ashes of prior electrical systems.". - Hannes Alfven, Nobel Laureate, Plasma physicist.

                              Comment

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