SANSUI 5000X

Discussion in 'Exclusively Sansui' started by ALIDIESEL, Jan 9, 2018.

  1. ALIDIESEL

    ALIDIESEL New Member

    Messages:
    14
    Location:
    Iran
    The circuit transistors are original
    I listen sound of the amp in the next two days carefully.
    I want to see there really is a issues?

    And a question outside the discussion:
    Between Amps 7070 and 5000x and marantz 2250b
    Which sound is warmer?
     

     

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  2. stereofun

    stereofun Super Member

    Messages:
    1,227
    Location:
    Tucson, AZ
    I've had a 2252B, 4000 but not a 7070, so I am not fully qualified to answer - however I can almost guarantee you that the 5000x is the warmer sounding. The reason is that the 5000x is using large capacitors to filter DC in the output stage (cap coupled) whereas the others are Direct coupled, the 5000X is also quasi complementary in its output config (4 x NPN) vs full complimentary (2x NPN, 2 X PNP) furthermore the 5000x is a single rail design, meaning there is only a positive rail and a ground. So the 5000x is an older generation of amp design. That design typically have a low damping factor, which means the bass is not in an "iron grip" by the amp and thus floats a bit more. This in turn lends itself to a warmish sound with a bit of blooming in the bass that is not super accurate but with a sound overall that is very smooth and BIG. The other amps you mention will have a more precise and tight execution of the sound, but in turn a bit more buttoned up. However, despite the 5000x era's sub-par specs in distortion, channel separation...and nowhere near flat response curves - that design have many fans around here. One thing is to reproduce the incoming signal at a larger scale at great precision measured electronically, another is to reproduce the incoming signal and then once traveled through speaker cones, cabinets and air to your eardrum - all with specific altering effects - to have it sound real and groovy. For some reason, many of the best cap coupled designs, despite their short comings on the spec side - manages just that. You have a very fine amp indeed.
     
    Hyperion, ALIDIESEL, tom3 and 2 others like this.
  3. ALIDIESEL

    ALIDIESEL New Member

    Messages:
    14
    Location:
    Iran
    Thank you for everything
    I will upload a video test of 5000x and Rogers ls3 / 5a Tomorrow
    I entered to AK recently and learned a lot over this short time
     
  4. ALIDIESEL

    ALIDIESEL New Member

    Messages:
    14
    Location:
    Iran
    Last edited: Jan 13, 2018
  5. Bruno Primas

    Bruno Primas Member

    Messages:
    97
    Looks and sounds great! No surprise there......
     
  6. stereofun

    stereofun Super Member

    Messages:
    1,227
    Location:
    Tucson, AZ
    Yep, looks and sounds beautiful :thumbsup:

    P.s be careful with wooden cover on amp.
     

     

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  7. Bruno Primas

    Bruno Primas Member

    Messages:
    97
    I agree....don't stack ANYTHING on top of the 5000. For cosmetics AND for good airflow....
     

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