JimL11

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    • JimL11
      JimL11 replied to the thread The Entry Level Stax Thread.
      Don't know about current Woo Wee but in the past, apparently Woo had some issues about not having the appropriate safety resistors in...
    • JimL11
      JimL11 replied to the thread KOSS ESP-950 Thread.
      Actually, the T1 is a hybrid, with solid state in all stages except the output. And the high levels of distortion in "tube amps" is as...
    • JimL11
      Thx for the update.
    • JimL11
      google in its infinite wisdom has made the old share unusable with no way to fix it and keep the same link. there are many posts here...
    • JimL11
      JimL11 replied to the thread KOSS ESP-950 Thread.
      "Rather then buy a modded Stax amp the Phantom seems to deliver more power then any Stax amp ever made." Well, it's not quite clear...
    • JimL11
      That really is NOT a good idea. The Topping LA90 is a power amplifier, which can put out up to about 30V RMS. The Kingsound M-03 is a...
    • JimL11
      JimL11 replied to the thread Stax SRM-T1 Repair, Re-Cap, Mod.
      That should be adequate heat sinking. I am assuming you are using ceramic high voltage insulators and heat sink grease to attach the...
    • JimL11
      JimL11 replied to the thread Stax SRM-T1 Repair, Re-Cap, Mod.
      Mouser is a reliable supplier - that's where I get my FETs. So there are a couple possibilities. The DN2540 regulates the current, so...
    • JimL11
      JimL11 replied to the thread Stax SRM-T1 Repair, Re-Cap, Mod.
      That is a subjective question so it depends a bit on what your sonic preferences are. I had a 727 with global feedback mod, and I...
    • JimL11
      JimL11 replied to the thread The Entry Level Stax Thread.
      Looks like the JJs are equivalent to 6SN7GTA/GTB, which have higher voltage and power ratings than standard 6SN7 tubes. So they can be...
    • JimL11
      JimL11 replied to the thread The Entry Level Stax Thread.
      Dominic Stritt is "firschi" on Head-Fi. The CCS mod is what I published in AudioXpress, July 2017. This substitutes a cascode MOSFET...
    • JimL11
      JimL11 replied to the thread KOSS ESP-950 Thread.
      Well, the Koss energizer has a bit higher bias voltage and power supply voltage, but it has pretty low current capability (according to...
    • JimL11
      JimL11 replied to the thread The Stax Thread III.
      Perhaps that is because the SRM-1 never had XLR inputs to begin with. Prior to the SRM-T1S, all of the Stax amps had single ended RCA...
    • JimL11
      JimL11 replied to the thread The Stax Thread III.
      I don't know if putting a 10 ohm resistor in parallel with the SRD-7 will fix your distortion problem or not, but it probably won't...
    • JimL11
      JimL11 replied to the thread Stax SRM-T1 Repair, Re-Cap, Mod.
      Well, it's not that complicated a circuit - 2 MOSFET's and 3 resistors plus a trim pot per current load - you need 4 current loads...
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