• -1 dipole "enclosure" for Maggies. - MikeCh 23:55:44 03/03/15 (7)
  In Reply to: RE: +1 sealed enclosure for Maggies. nt posted by DragonEars on March 03, 2015 at 21:47:14

  Though not in the OP's price range. (Though maybe).
  

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  • RE: -1 dipole "enclosure" for Maggies. - MikeCh 19:35:38 03/06/15 (0)
    In Reply to: RE: -1 dipole "enclosure" for Maggies. posted by MikeCh on March 03, 2015 at 23:55:44

    
    

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  • +2 :-). Subwoofer thread. We both mean the sub, not the Maggies themselves. - DragonEars 01:03:36 03/04/15 (5)
    In Reply to: RE: -1 dipole "enclosure" for Maggies. posted by MikeCh on March 03, 2015 at 23:55:44

    My subject line was misleading.
    Sealed subwoofer enclosures sound better than a vented/reflex enclosure when paired with Maggies.
    
    I know you mean a dipole subwoofer "enclosure" would be even better with Maggies. I don't know anything about dipole subwoofers. How do they control the driver? Do cone driver dipoles require drivers optimized for dipole applications?
    
    I've never heard a dipole subwoofer before. To me it seems like a cone driver dipole "enclosure" would have less control over the driver. Magnepan's DWM isn't a subwoofer, but a woofer enhancer. They are planars and should pair well with full range planars.
    
    My sub has two ports and one port plug. There is a switch to optimize for more extension with both ports open or more control with one port open. It definitely sounded better with one port sealed. I called the manufacturer and talked to one of their designers. I explained that I liked the sound with one port sealed better than both ports open and asked him about sealing both ports. He sent me an extra port plug to experiment with. You have to turn the level up a little to compensate for the efficiency loss going from ported to sealed. It made a great improvement. Much tighter, more controlled bass. Much better match for Maggies.
    

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    • RE: +2 :-). Subwoofer thread. We both mean the sub, not the Maggies themselves. - EmailTim 09:07:26 03/04/15 (4)
      In Reply to: RE: +2 :-). Subwoofer thread. We both mean the sub, not the Maggies themselves. posted by DragonEars on March 04, 2015 at 01:03:36

      

      Your maggies are a dipole. The dipole sub would be an extension of your maggie design. Usually, dipole subs use a 6dB/octave EQ curve to bring up the low end.

      Hemholtz has a pair and should chime in.
      
      

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      Edits: 03/04/15

      • RE: +2 :-). Subwoofer thread. We both mean the sub, not the Maggies themselves. - zulugone 13:45:30 03/08/15 (2)
        In Reply to: RE: +2 :-). Subwoofer thread. We both mean the sub, not the Maggies themselves. posted by EmailTim on March 04, 2015 at 08:07:26

        I this a picture of the Rythmik CI OB 'kit'? 2 drivers per stereo channel?
        Do you have any advice about using the same Rythmik OB with one driver per channel?
        

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        Edits: 03/08/15

        • RE: +2 :-). Subwoofer thread. We both mean the sub, not the Maggies themselves. - EmailTim 18:50:55 03/08/15 (1)
          In Reply to: RE: +2 :-). Subwoofer thread. We both mean the sub, not the Maggies themselves. posted by zulugone on March 08, 2015 at 13:45:30

          

          GR Research Drivers and Rythmik servo amp.

          They are using 2 or 3 drivers per channel.

          I have tried 1 driver per channel and the output IMHO is too low.

          The servo amp needs the lower impedance of multiple drivers to generate the higher power and higher output.

          GR Research's 16Ohm drivers are really @ 12Ohms, thus you can't run 4 of them per channel with their servo amp. If they were truely 16Ohms, you could run 4 to get 4Ohms and could also get complete mechanical cancellation by running 2 against the other 2 in a W-Frame.

          GR Research has a forum on Audio Research that may help you out. They are also selling H-Frame Flat-Packs for 2 and 3 drivers.

          HTH

          • H-Frame Flat Pack (2 and 3 drivers)   (Open in New Window)

          
          

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          Edits: 03/08/15   03/08/15   03/08/15

          • RE: +2 :-). Subwoofer thread. We both mean the sub, not the Maggies themselves. - zulugone 08:38:45 03/09/15 (0)
            In Reply to: RE: +2 :-). Subwoofer thread. We both mean the sub, not the Maggies themselves. posted by EmailTim on March 08, 2015 at 18:50:55

            Thanks. That clears things up for me. I couldn't figure that out just reading the Rythmik order page for the CI OB part. I am looking to add bass to my 1.7 for classical and jazz at sub 90 dB listening levels. Many recordings are fine some not so much. I have had some significant improvement putting one DWM on its own amp and setting the amp's low pass filter to the internal DWM 'crossover' level of 200 Hz. I have to turn the DWM off or down for movies as it distorts from non-musical noise...like explosions. I have been reading up on articles on open baffles and other subs - SVS, Rythmik. Counter to the trend I would not want too much bass but I suppose that's just turning down the volume.
            

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      • Exactly! That is what I was clarifying (poorly) from my poorly worded subject line previously. nt - DragonEars 18:05:20 03/04/15 (0)
        In Reply to: RE: +2 :-). Subwoofer thread. We both mean the sub, not the Maggies themselves. posted by EmailTim on March 04, 2015 at 09:07:26

        .
        

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