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Thread: Advice on Quad power amps.

  1. #261
    Join Date: Apr 2011

    Location: cheltenham

    Posts: 746
    I'm matt.

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    Quote Originally Posted by walpurgis View Post
    That's why I have one. Sounds decent enough anyway.
    Just wish it had a remote.

  2. #262
    Join Date: Mar 2016

    Location: Brighton, UK.

    Posts: 3,061
    I'm Mike.

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    Quote Originally Posted by walpurgis View Post
    That's why I have one. Sounds decent enough anyway.
    What's the model called? Threre seem to be many on Ebay ta.
    Current system 1210 GR. CDP - Meridian G08. Amp -Sugden A21I - Sig. Wharfedale Lintons.

  3. #263
    Join Date: Apr 2012

    Location: N E Kent

    Posts: 51,624
    I'm Geoff.

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    Quote Originally Posted by Mikeandvan View Post
    What's the model called? Threre seem to be many on Ebay ta.
    The main differences are the cases, some metal and some plastic and some sellers offer different pot values. I have the MC2 plastic cased version with 20K pot.
    It is impossible for anything digital to sound analogue, because it isn't analogue!

  4. #264
    Join Date: Apr 2011

    Location: cheltenham

    Posts: 746
    I'm matt.

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    This is the one I have - LINK

  5. #265
    Join Date: Mar 2016

    Location: Brighton, UK.

    Posts: 3,061
    I'm Mike.

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    Quote Originally Posted by fatmarley View Post
    This is the one I have - LINK
    Thanks.
    Current system 1210 GR. CDP - Meridian G08. Amp -Sugden A21I - Sig. Wharfedale Lintons.

  6. #266
    Join Date: Apr 2011

    Location: cheltenham

    Posts: 746
    I'm matt.

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    Quote Originally Posted by walpurgis View Post
    Just checked. Looks like R13 needs to be 27R for 1.0V input sensitivity on the 306. Nice and easy to reach. What rating resistors did you use?
    Just found my notes and it looks like I used 47R.

  7. #267
    Join Date: Mar 2016

    Location: Brighton, UK.

    Posts: 3,061
    I'm Mike.

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    Quote Originally Posted by fatmarley View Post
    This is the one I have - LINK
    Just ordered one thanks, is that the pre you use with yours? I think I'll cancel the Khozmo for now, I'm getting completely conflicting advice on the pot value, PFM say 10K, AOS says 50k+!
    Current system 1210 GR. CDP - Meridian G08. Amp -Sugden A21I - Sig. Wharfedale Lintons.

  8. #268
    Bigman80 Guest

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    Quote Originally Posted by Mikeandvan View Post
    Just ordered one thanks, is that the pre you use with yours? I think I'll cancel the Khozmo for now, I'm getting completely conflicting advice on the pot value, PFM say 10K, AOS says 50k+!
    Do what makes you happy mate. Geoff is a bit of a tannoy/quad expert in my book.

    What did arek say about use with the quad?

  9. #269
    Join Date: Apr 2011

    Location: cheltenham

    Posts: 746
    I'm matt.

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    Quote Originally Posted by Mikeandvan View Post
    Just ordered one thanks, is that the pre you use with yours? I think I'll cancel the Khozmo for now, I'm getting completely conflicting advice on the pot value, PFM say 10K, AOS says 50k+!
    Yes that's the one.

    Out of all the people posting in these threads, here and over at pinkfish, Jez (Arkless Electronics) is probably the most qualified person to answer your question.

  10. #270
    Join Date: Aug 2011

    Location: Coventry, England UK

    Posts: 534
    I'm Simon.

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    Looks like the Quad has a 20k input impedance so ideally you'll want a 10k attenuator. If your sources are solid state they should be under 100ohm output impedance so you'lll be good to go with that. I know there are different opinions on this subject but imo the basics are that the pot you use needs to have a higher resistance than your source output and lower than the power amps input.

    For example, mine currently is 47ohm for my source/s > 10k attenuator > 22k power amp.

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