Announcement

Collapse
No announcement yet.

Ultimax 8

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

  • #16
    I have an old pre amp with lfe or I would need another amp for the subs so I could use a high lvl input. I was hoping to use the lfe and both channels to simplify things.

    Comment


    • #17
      Originally posted by Ranis View Post
      I have an old pre amp with lfe or I would need another amp for the subs so I could use a high lvl input. I was hoping to use the lfe and both channels to simplify things.
      That will work, see my note above. You don't need to bridge.
      John H

      Synergy Horn, SLS-85, BMR-3L, Mini-TL, BR-2, Titan OB, B452, Udique, Vultus, Latus1, Seriatim, Aperivox,Pencil Tower

      Comment


      • #18
        With some suggesting the Ultimax, while sounding good sealed, state that there are better subs for music. So I'm left wondering if the Reference Series Subwoofer drivers are maybe better musically than the Ultimax, although most likely not as robust.

        Comment


        • #19
          Originally posted by Waboo View Post
          With some suggesting the Ultimax, while sounding good sealed, state that there are better subs for music. So I'm left wondering if the Reference Series Subwoofer drivers are maybe better musically than the Ultimax, although most likely not as robust.

          I was wondering that myself. As far as the motor goes, the RS have a triple shorted motor (I'm guessing pole cap, upper & lower rings?), where as the Ultimax only has a copper sleeve-cap? Of course that is only one part of the whole equation as the linearity of the BL field and the suspension Kms adds up to quite a bit as well.

          Comment


          • #20
            I thought about going with the RS line at first but it looked like the box was going to be a lot bigger especially the hf version. Then I saw that the ultimax went on sale and thought since it's for both music and ht I would try that instead, it seems to do both well but time will tell.

            Comment


            • #21
              Originally posted by Waboo View Post
              With some suggesting the Ultimax, while sounding good sealed, state that there are better subs for music. So I'm left wondering if the Reference Series Subwoofer drivers are maybe better musically than the Ultimax, although most likely not as robust.
              While I haven't tried an Ultimax, I use an RSS390HF in a sealed box as a woofer for music, up to 150Hz crossover. The bass is very clean and tight, comparable to my good headphones.
              Francis

              Comment


              • #22
                Originally posted by Ranis View Post
                I thought about going with the RS line at first but it looked like the box was going to be a lot bigger especially the hf version. Then I saw that the ultimax went on sale and thought since it's for both music and ht I would try that instead, it seems to do both well but time will tell.

                Yep, the larger Vas figures aren't fully "countered" by the lower Qts values unfortunately, so you end up with a larger overall box for the flatter alignments. With the Ultimax, the balance owed is paid with the lower overall sensitivity due to the lower Vas directly resulting in smaller enclosure sizes. Rest assured, the 8" Ultimax's do a great job for music in a good passive radiator loaded enclosure. With param EQ via DSP, I'm getting flat, in-room response with them down to 23Hz, in what looks to be about 0.5 ft³ internal enclosure volume with two PR's in each box.

                Comment


                • #23
                  That's small and low!! Maybe I'll have to take a serious look at getting some passive radiators.

                  Comment


                  • #24
                    Originally posted by Ranis View Post
                    That's small and low!! Maybe I'll have to take a serious look at getting some passive radiators.

                    Of course this kind of setup has very low sensitivity in the lowest octave and has to be made up [via DSP] with lots of clean amplifier power with very high headroom. Lucky for me, each one has a Peavey CS800X strapped to it. ;)

                    Comment


                    • #25
                      Well you don't get something for nothing.

                      Comment


                      • #26
                        Originally posted by wogg View Post
                        I have a plan for those, a 15x14x19" box tuned to 27Hz using a 3" precision port. F3 of 23Hz, 106dB output with no exertion issues up to rated 300W.
                        I have to keep that in mind. I was looking at the Ultimax 8 as well. Do you have a write up about the sub? Thx

                        Comment


                        • #27
                          Originally posted by crossbound View Post

                          I have to keep that in mind. I was looking at the Ultimax 8 as well. Do you have a write up about the sub? Thx
                          Nope, it's all theory right now. My ideal system would be a pair of stand 2 or 3 ways with a pair of small subs crossed with DSP for room corrections. While dreaming of having a place to put that system and then making the system itself, I've modeled a ton of small subs that included that Ulitmax driver at the higher end of the costs.
                          Electronics engineer, woofer enthusiast, and musician.
                          Wogg Music

                          Comment

                          Working...
                          X