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JimL

High Rollers
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About JimL

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  1. JimL

    SRX-Plus Build Thread

    The original SRX schematic shows a 250k to 500k attenuator, but that is most likely due to it being designed to be driven by a tube source. As long as your source can drive 10k, which almost everything these days can, a lower impedance attenuator should be fine.
  2. JimL

    Speaker Porn

    Nice to get away from cones in boxes.😀
  3. JimL

    The Headcase Stax thread

    Sure looks like it - see top photo where there is a split volume control. Also second photo shows four sections to the volume control, which is what you would expect for a balanced amp.
  4. JimL

    Speaker Porn

    Hmm, I recognize the Quads of course, and some McIntosh amps and what looks like a Fisher 500C, and perhaps Dahlquist DQ10s behind? Don't know about the rest.
  5. JimL

    The Headcase Stax thread

    IIRC, HiFi+ gave a rave review to the Trilogy H1, a grossly overpriced version of the 4 tube Egmont/TubeCAD circuit, swallowing hook, line and sinker the manufacturer's claim that it was a totally clean paper rethinking of electrostatic.headphone amps.
  6. JimL

    Hifiman Jade II

    Really looking forward to this.
  7. JimL

    Hifiman Jade II

    Appreciate the offer but I'm going to be away from home for a month or so visiting friends so, I'm out.
  8. JimL

    Hifiman Jade II

    So, the HFM "rebuttal" does have some interesting points. 1) 1k resistor outputs vs 5.1k for the Stax - no reason given for the change, presumably the cost for either resistor is the same 2) 2M resistor bias outputs vs 5M for Stax - again, no reason given, should be identical cost 3) op amp input vs discrete MOSFET input. Presumably for cost reasons. 4) output MOSFETS supposedly to increase voltage output capability, claimed very low capacitance, but part number not identified. Are we talking a cascode transistor (bottom) MOSFET (top) combo? Don't know. 5) the text says they are comparing two schematics, however they post the SRA-12S schematic but use photos of the circuit board instead of an actual schematic.
  9. For an inexpensive alternative, you could get an old SRM-T1, then for around $100, replace all the old electrolytic capacitors and put in my CCS mod. For another $100 substitute a TKD pot for the Alps, although you lose the balance function. Won't sound as good as the KG alternatives, but will sound better than any standard Stax amp IMHO.
  10. JimL

    The Headcase Stax thread

    A method I use to determine average prices is to go to eBay, look up an item, click on "Completed Items" and look at how much people actually paid (those are the auctions and Buy It Now items where the price is green - if the price is in black it didn't sell). I also add in the shipping cost if that is listed.
  11. JimL

    The Headcase Stax thread

    Well, I can imagine some types of music where "raw" might be preferred.
  12. JimL

    The Headcase Stax thread

    Both the SRM-1/Mk2 and T1 are old enough that replacing all the electrolytic caps would be recommended routine maintenance. I have no experience with a SRM-1, but a couple friends and I compared my modded T1 with an SRM-727 with global feedback mod. We all felt the T1 was more refined, and we all preferred it to the modded 727.
  13. JimL

    Hifiman Jade II

    Service? Repair? What's that? They probably just toss it in the garbage and send out a new one.
  14. JimL

    Hifiman Jade II

    Sounds like it was built just barely good enough to get it past the warranty period without failing.
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