Amp/Preamp Asylum

• RE: For MC the high loading just changes the frequency response. tilting it 'up' a bit. nt - SchoolOfRock 15:42:29 09/25/17 (1)
  In Reply to: RE: For MC the high loading just changes the frequency response. tilting it 'up' a bit. nt posted by 3+4=5 on September 25, 2017 at 11:01:44

  Meaning that the high frequencies become more extended at higher loading? Excuse my ignorance
  
  At 47 the Soundstage is bigger and deeper in my set up. At least for the DL 103
  

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  • RE: For MC the high loading just changes the frequency response. tilting it 'up' a bit. nt - Charles Hansen 19:50:08 09/25/17 (0)
    In Reply to: RE: For MC the high loading just changes the frequency response. tilting it 'up' a bit. nt posted by SchoolOfRock on September 25, 2017 at 15:42:29

    I agree that 47k loading gives the best soundstage. I find that "loading down" an MC to tame its treble is something of a band-aid.
    
    As far as the problem you are having with your SP-11, it sounds to me as though the cartridge loading is not with a physical switch but perhaps instead with a FET switch. FET switches can be damaged by overvoltage, and perhaps that is what happened with your "high volume blast".
    
    Have you contacted Audio Research yet? They should be your best source of help and likely the only place that can fix it. I don't think they include schematics like they did in the old days, and whey they do they usually don't have the part numbers for the "proprietary" solid-state parts they use.
    
    Hope this helps,
    Charles Hansen
    

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