• Re: STACKED QUAD 57's / Speaker Jumper Cable advice needed. - waldenpuddle 10:58:22 04/24/07 (5)
  In Reply to: Re: STACKED QUAD 57's / Speaker Jumper Cable advice needed. posted by pickle on April 24, 2007 at 10:49:17:

  Hi Bill,

  Thanks for the post.

  Stacked quads were made to be run this way. I understand it's what Peter Walker specced when he originally came up with the idea. My amps are very comfortable with the load so it has never been an issue.

  BTW...I had EXACTLY the same instinct when it came to stacked quads as I happened to have 4 identical monoblocks, but it turned out to be unecessary (I found out about this after posting here on the Asylum!)

  Thanks!
  
  

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  • Re: STACKED QUAD 57's / Speaker Jumper Cable advice needed. - pickle 16:40:27 04/24/07 (4)
    In Reply to: Re: STACKED QUAD 57's / Speaker Jumper Cable advice needed. posted by waldenpuddle on April 24, 2007 at 10:58:22:

    You surprise me greatly. Where/when did Walker have anything to say about stacked ESL57s? I would like to read it.

    I don't want to flog a dead horse.....but the ESL57 presents a mainly capacitative load of about 4 ohms. Two ESLs in parallel present an even greater challenge to the power amplifier. You seem convinced that your amplifier is up to that challenge. What are you using? I don't think you said.

    How have you arranged the top speaker with the lower? I used to use stacked 57s and had difficulty with the physical relation between the upper and lower unit. Perhaps the room was too small to get it 'right'.

    Have fun,

    Bill
    
    

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    • Re: STACKED QUAD 57's / Speaker Jumper Cable advice needed. - waldenpuddle 22:44:28 04/24/07 (3)
      In Reply to: Re: STACKED QUAD 57's / Speaker Jumper Cable advice needed. posted by pickle on April 24, 2007 at 16:40:27:

      Hi Bill,

      Thanks again.

      Well so I looked around and I did find a copy of a Quad document showing their recommendations for stacking the ESL's and the angles etc. That can be seen at the link below (along with their recommendations that they be connected in parallel.)

      My amps are somewhat custom (tubes) but are based on a classic Mullard 5-10 circuit and have never had ANY trouble at all with the load from the Quads. Why? Synergy would really be the only explanation. I went through an ENORMOUS amount of gear to find what I wanted. (They sound superb.) I DO have an almost ideal environment to be able to enjoy the +3/+6db that Gary mentioned as my listening room is quite large. (Approximately 22 x 32) so I can really let the Quads "hang out" when the time comes.

      But I guess I may have to ask elsewhere for the cable issue.

      BTW...plenty of people are running stacked quads and so it would seem that there are plenty of amps up to the task.

      Also.....FWIW...I have never heard of anyone running stacked quads that were NOT wired like mine.

      Regards...WP
      

      • link to Stacked Quad photo and specs for mounting   (Open in New Window)

      
      

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      • While it is less common... - Gary Jacobson 15:37:12 04/25/07 (0)
        In Reply to: Re: STACKED QUAD 57's / Speaker Jumper Cable advice needed. posted by waldenpuddle on April 24, 2007 at 22:44:28:

        ...the Quads can certainly be wired in series to offer a higher loading.

        The reason for the parallel connection and the arrangement shown in the original Quad (approved) literature is that it is relatively easy to do without making massive changes to the speakers themselves.

        If the amp isn't producing squeaky noises at HF and running out of breath on crescendos then it's coping alright.

        
        Regards,
        Gary Jacobson
        

        • The Quad ESL   (Open in New Window)

        
        

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      • Re: STACKED QUAD 57's / Speaker Jumper Cable advice needed. - stickler to perfection 23:07:16 04/24/07 (1)
        In Reply to: Re: STACKED QUAD 57's / Speaker Jumper Cable advice needed. posted by waldenpuddle on April 24, 2007 at 22:44:28:

        I would love to see your 4 QUAD ESL 57-s in your Custom Stack Racks.
        Please email me a photo.
        Regards,
        David
        
        

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        • you have mail NT - waldenpuddle 08:09:25 04/25/07 (0)
          In Reply to: Re: STACKED QUAD 57's / Speaker Jumper Cable advice needed. posted by stickler to perfection on April 24, 2007 at 23:07:16:

          NT
          
          

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