Announcement

Collapse
No announcement yet.

Zaph Audio ZA14W08 VS Fountek FW146

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Zaph Audio ZA14W08 VS Fountek FW146

    I am getting ready for a BMTMB for myself, Finally. The mid-woofer that can go high enough (around 2500-3000hz) with low level of linear and nonlinear distortions have been on my mind for sometime. So, here we have 2 contenders, the mighty Zaph and rather less known Fountek mid-woofer. Both priced around $40
    Package from Madisound arrived today.
    Both drivers securely packed. ZA14 had plastic bag in addition to the usual packing materials. One could wish for a small bag of desiccant for every driver but hey, the world is not perfect.
    From the first glance ZA14 has vent holes under the spider, Fountek does not.
    Screw holes of Fountek are countrbored so if a #6 undercut screw is used, it will end up almost disappearing inside thick basket. ZA14 has sleeve looking like mounting holes. An undercut screw head or bolt will be clearly visible.
    Fountek appear to have heavier cast frame.
    ZA14 cone is almost textured with what appears to be a thin coating. Phase plug is polished, so polished if it was a bit bigger you could use it to shave. Gorgeous looking 2 tone driver.:D
    Fountek is aluminum as well but has a quite look. Grayish in color with same color phase plug. Looks good too if you care.
    ZA14 just happen to be first to go on my new baffle. I tell you guys, it sounds super clean through midrange and breake up is not that bothersome. I am quite surprised to listen to a mid-woofer crossoverless and not being bothered by the sound. It's just a first impression and it doesn't mean much.
    I quickly put the microphone (Beyerdynamic mm1) on it and byiaaa! FR is on the dime, CSD looks good with one pronounced brake up high up. All on the dime which leads me to believe that I am doing something correctly.:D
    Fountek will be next. I'll play both drivers for a week for a "breake in" believers and a couple of hours prior to the TS and acoustic data acquisition.
    Driver porn and data will be posted soon.
    Roman

    Correction!. FW had plastic bag not ZA14. Sorry guys.
    Last edited by r-carpenter; 01-06-2010, 12:51 AM.
    http://www.diy-ny.com/

  • #2
    Re: Zaph Audio ZA14W08 VS Fountek FW146

    Funny how it's okay to talk about "driver porn" but not "b_tt joints" in your cabinet.:rolleyes:

    Comment


    • #3
      Re: Zaph Audio ZA14W08 VS Fountek FW146

      Originally posted by Flint View Post
      Funny how it's okay to talk about "driver porn" but not "b_tt joints" in your cabinet.:rolleyes:
      True Dat.

      Also, brakes are for cars. Cones b r e a k up, and you b r e a k in drivers. That said, I'm looking forward to seeing the data that you generate, since it appears that you are able to measure accurately, something that I cannot even attempt to do.:o


      Mark
      You go your way, I'll go mine. I don't care if we get there on time.

      ~Pink Floyd

      Comment


      • #4
        Re: Zaph Audio ZA14W08 VS Fountek FW146

        b...tt joints are cabinet porn because they suck!
        Last edited by r-carpenter; 01-05-2010, 08:13 AM.
        http://www.diy-ny.com/

        Comment


        • #5
          Re: Zaph Audio ZA14W08 VS Fountek FW146

          ZA14 has an integrated rubber gasket. Fountek does not. It's convenient not to have to deal with goo to seal the driver. Not the end of the world thou. Vent holes under the spider are clearly visible.
          Attached Files
          http://www.diy-ny.com/

          Comment


          • #6
            Re: Zaph Audio ZA14W08 VS Fountek FW146

            Za14 on the left, FW146 on the right.
            Attached Files
            http://www.diy-ny.com/

            Comment


            • #7
              Re: Zaph Audio ZA14W08 VS Fountek FW146

              Both drivers are mounted in their inserts. Fountek drops well in a 5 3/4 hole while ZA14 is 1/16 under a half (5 7/16).
              Back side of a driver cutout is rounded.
              #6 Hafele undercut screw almost disappears in a mounting hole.
              Attached Files
              http://www.diy-ny.com/

              Comment


              • #8
                Re: Zaph Audio ZA14W08 VS Fountek FW146

                close up of a round over
                Attached Files
                http://www.diy-ny.com/

                Comment


                • #9
                  Re: Zaph Audio ZA14W08 VS Fountek FW146

                  Both drivers measured very close to stated TS. ZA14, extremely close.
                  Both drivers were left playing 20hz tone over night, then let cool off for a couple of hours and measured. The only difference I see is the efficiency, but the assumption is that Sound Easy calculates for 1volt/meter and common practice now days is 2.83volt/meter.
                  26liter box was used for TS.
                  Attached Files
                  http://www.diy-ny.com/

                  Comment


                  • #10
                    Re: Zaph Audio ZA14W08 VS Fountek FW146

                    Merged responses. Near field was taken 5cm from phase plug and Far Field 1 meter. Driver is positioned pretty high up on my baffle, 1.65m and it give nice gating of 7miliseconds which allows clean far field to 150 hz.
                    Merge was done at 600hz.
                    FR on the left is Fountek, right ZA14
                    Attached Files
                    http://www.diy-ny.com/

                    Comment


                    • #11
                      Re: Zaph Audio ZA14W08 VS Fountek FW146

                      Seems to me the Zaph has the flatter response, plus that peak at 9.5KHz should be relatively easy to notch out. That looks like a hell of a driver to me for 40 bucks.

                      Mark
                      You go your way, I'll go mine. I don't care if we get there on time.

                      ~Pink Floyd

                      Comment


                      • #12
                        Re: Zaph Audio ZA14W08 VS Fountek FW146

                        CSD or Waterfall were taken 0.5 meter, 1.65 driver to the nearest reflecting surface.
                        I find CSD a valuable tool in conjunction with other measurements. It's a good diagnostic tool. BY itself it's not quite as useful. It is very illustrative in spotting standing waves in the build loudspeaker and of cause showing all the cone break up artifacts. While Frequency response almost always comes out the same in a different software packages (given calibrated microphone and correct measurement technique), CSD always look different. It does show same symptoms and problems.
                        Attached Files
                        http://www.diy-ny.com/

                        Comment


                        • #13
                          Re: Zaph Audio ZA14W08 VS Fountek FW146

                          R-Carpenter. Thanks for posting information on drivers. I would think it takes some time and work.

                          Comment


                          • #14
                            Re: Zaph Audio ZA14W08 VS Fountek FW146

                            Looks to me that ZA14 is more linear and it's extended linearity will simplify tweeter choice. It can probably be crossed with a ribbon if one desires to do so.
                            Both drivers have cone brake ups that are audible. It was very interesting to listen both on MLS signal. Fountek"s brake up does not sound as nasty and pronounced as ZA14. It doesn't really mean anything because either one will require steep crossover and(or) a notch. It appears that picking of ZA14 is narrower and higher in magnitude while FW146 has a wider lower pick. Probably has to do with the amount of coating applied to the driver diaphragm. No surprises there.
                            FW146 has a slightly raised response below 700hz not enough to disregard BSC in a free standing speaker though.
                            ZA14 has cleaner CSD as well. I am a bit puzzled by a ringing at 4500hz shown on the waterfall, which corresponds to a 2db bump in a FR. Will it require a second notch or filter slope will bring it down enough not to be on the radar?
                            FW has a small amount of ringing around 1800hz which also corresponds with a bump in FR. Thant can only be notched out and it's not exactly easy to do. Any driver designer out there to comment on how and why this lower small problems are there?
                            Off axis FR will come next week. Drivers will be placed on Lazy Susan in 14x14 inch baffles.
                            http://www.diy-ny.com/

                            Comment


                            • #15
                              Re: Zaph Audio ZA14W08 VS Fountek FW146

                              Distortion plots would also be nice .. I wonder if that breakup on the fountek propogates large down low.
                              I am trolling you.

                              Comment

                              Working...
                              X