• RE: What amplifier do you use with your Magnepan .7 or LRS - mondial 17:53:52 11/26/21 (0)
  In Reply to: RE: What amplifier do you use with your Magnepan .7 or LRS posted by nParbat on November 21, 2021 at 18:58:14

  My sister uses an ARC REF 150 and VS 55 amp . Both are tube amps .
  

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• VTA/Dynaco MK3 monos and dual REL subs on my LRS - wgallupe 07:42:44 11/25/21 (0)
  In Reply to: RE: What amplifier do you use with your Magnepan .7 or LRS posted by nParbat on November 21, 2021 at 18:58:14

  The LRS are high passed at 100Hz/24dB using a Marchand XM46-AA passive line level crossover. Low pass to the REL T/7x LFE input is also at 100Hz/24dB.
  
  Although the MK3 amps (rated at 60wpc) have plenty of power/current to drive the LRS full range beautifully, adding the XM46 did improve overall midrange clarity. I suppose this is mostly due to increased amplifier headroom. However, I also believe that, since the LRS bass/midrange/treble drivers share the same diphragm, removing low bass and reducing diaphragm motion from the LRS is also a contributor.
  

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• RE: What amplifier do you use with your Magnepan .7 or LRS - MBerry6 16:33:05 11/24/21 (5)
  In Reply to: RE: What amplifier do you use with your Magnepan .7 or LRS posted by nParbat on November 21, 2021 at 18:58:14

  I currently have a Hegel H190 driving my LRS / dual REL setup.
  

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  • RE: Just as a matter of interest ... - andyr 02:44:37 11/25/21 (4)
    In Reply to: RE: What amplifier do you use with your Magnepan .7 or LRS posted by MBerry6 on November 24, 2021 at 16:33:05

    Does the way you've set this up:
    1. run the LRSs full-range?
    2. or have you implemented a HP filter on the LRSs to match the roll-off of your RELs?
    
    In my view, #2 is the optimal way to implement subs.
    
    Andy
    
    

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    • RE: Just as a matter of interest ... - G Squared 10:36:13 11/25/21 (0)
      In Reply to: RE: Just as a matter of interest ... posted by andyr on November 25, 2021 at 02:44:37

      I followed Andy's advice with rewarding results.
      Gsquared
      
      

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    • RE: Just as a matter of interest ... - MBerry6 03:54:37 11/25/21 (2)
      In Reply to: RE: Just as a matter of interest ... posted by andyr on November 25, 2021 at 02:44:37

      I am currently running full range but would agree that a HP setup would be optimum. I am currently refining the Digital front end of my system but at some point I will explore the response curve in more detail.
      
      I would be interested in recommendations on High Pass setups using LRS's with dual REL's.
      

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      • RE: Just as a matter of interest ... - andyr 13:05:53 11/25/21 (1)
        In Reply to: RE: Just as a matter of interest ... posted by MBerry6 on November 25, 2021 at 03:54:37

        Be aware you can't implement a HP filter on the LRSs if you use REL's "high-level" connections to the subs.

        The only way it will work is by feeding the output from your preamp into a 2-way active XO and then feeding:
        * the low pass output into the low-level inputs (RCAs) on your subs, and
        * the high pass outputs into the amp driving the LRSs.

        Using something like a miniDSP 2x4HD would allow you to play with different roll-off frequencies, to decide which delivered the best sound; I would suggest you start off at 24dB L-R @ 60Hz.

        Andy

        
        

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        Edits: 11/26/21

        • RE: Just as a matter of interest ... - MBerry6 13:50:08 11/26/21 (0)
          In Reply to: RE: Just as a matter of interest ... posted by andyr on November 25, 2021 at 13:05:53

          Thanks for the recommendations and comments.
          

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• RE: What amplifier do you use with your Magnepan .7 or LRS - G Squared 04:23:38 11/24/21 (0)
  In Reply to: RE: What amplifier do you use with your Magnepan .7 or LRS posted by nParbat on November 21, 2021 at 18:58:14

  Cary CAD 200
  
  Sweet top end plenty of drive
  Gsquared
  
  

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• Odyssey Khartago, Sansui AU-999.... - Tromatic 09:26:59 11/22/21 (1)
  In Reply to: RE: What amplifier do you use with your Magnepan .7 or LRS posted by nParbat on November 21, 2021 at 18:58:14

  Love the Sansui the most.
  

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  • RE: Odyssey Khartago, Sansui AU-999.... - VidPro 16:17:41 11/22/21 (0)
    In Reply to: RE: Odyssey Khartago, Sansui AU-999.... posted by Tromatic on November 22, 2021 at 09:26:59

    A Carver M500t.
    

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• I use PS Audio M700s with my LRSes - Mike K 19:14:47 11/21/21 (2)
  In Reply to: RE: What amplifier do you use with your Magnepan .7 or LRS posted by nParbat on November 21, 2021 at 18:58:14

  and they work wonderfully well. I understand the M1200s are even better
  but have not heard them.
  Whether or not you can observe a thing depends upon the theory you use. It is the theory which decides what can be observed. - Albert Einstein
  
  

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  • RE: I use PS Audio M700s with my LRSes - gadio4533 06:41:24 11/22/21 (0)
    In Reply to: RE: I use PS Audio M700s with my LRSes posted by Mike K on November 21, 2021 at 19:14:47

    The M700s work very well on my 1.6s
    

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  • RE: I use PS Audio M700s with my LRSes - Green Lantern 21:32:11 11/21/21 (0)
    In Reply to: RE: I use PS Audio M700s with my LRSes posted by Mike K on November 21, 2021 at 19:14:47

    I use the same on my Apogee's, great amps!
    
    
    
    

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