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spritzer

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Everything posted by spritzer

  1. spritzer
    Couple of other obvious questions, are you sure all the sand is genuine as that could cause massive issues. Also are there any shorts on the boards or has the flux been cleaned off?
  2. spritzer
    Nah, it will be close enough. Just made sure the resistors is a high voltage unit rated for at least 600V.
  3. spritzer
    You should add a 5M resistor in series with the bias line. The Stax output has a 4M7 resistor on it so you need the extra 5M to meet the Sennheiser spec.
  4. spritzer
    Yeah, Class A is no joke which is why I have so much respect for the companies that do attempt it. Accuphase and even Denon make Class A integrated amps that seem to sell well enough to warrant regular updates.
  5. spritzer
    Even a 30W Class A amp runs very hot so yeah, very low Class A biasing.
  6. spritzer
    Nope, highly nonlinear transducer which needs a less than honest amp. Simple as that. The inside story from Sennheiser is that the HE90 driver yield was truly terrible so they did have some very stringent testing.
  7. spritzer
    Sure, they can be repaired but you will have noise issues unless you just happen to have a working cleanroom...
  8. spritzer
    Even if we were to use all film caps in an amp then there are other stresses that go with high voltage. Film caps are also vulnerable to heat so that is clearly a factor.
  9. spritzer
    Hello servo!! Ohh and running amps 24/7 will drastically cut their lifespan.
  10. spritzer
    There is a lot of work that goes into shrinking the PCB's and often more time than the initial layout. So I'm not going to do it but Kevin might.
  11. spritzer
    Sadly no. Even on the Carbon is isn't capable at all and suffers from all the same issues as it did on the BH back in the day.
  12. spritzer
    Well the HE90 doesn't rock as it has abysmal bass performance...
  13. spritzer
    The film is attached to a large metal ring (that's how Stax have been built since day one) but we could be dealing with a connection issue as to how the cable attaches to the ring. I've never opened up a 009 so I can't be sure. It could also be an issue with the coating or the film tension. If anybody has a broken 009 then I'd love to buy it.
  14. spritzer
    If you use old GEC KT66's then maybe they might work for a while as they were so massively over engineered but anything from the 70's and on wards will not last long. This can't be stressed enough, the EL34 is a oddity amongst the octal power tubes so the logic that any of them will work just isn't even remotely true.
  15. spritzer
    If the diaphragm is stuck to a stator then yeah, we need to show it who's boss!!
  16. spritzer
    Well KT66's are utterly incompatible with the amp and will not last long but please go ahead and blow up your T2. Read the fucking datasheets!!
  17. spritzer
    Kevin is indeed full of surprises... As for the 009, I think a lot of them experience some charge issues. My current set did so I just hit it quite hard on the offending channel. Right as rain after that.
  18. spritzer
    T2 with DHT's!! Me I just did construction today as I finished all of the small projects I'd been neglecting for the past few weeks.
  19. spritzer
    I would have sprung for some wires with spade connectors...
  20. spritzer
    Most of my truly WTF headphones have been dirt cheap so I just viewed them as a learning experience. Glad the ESP9's are working as they should. Not bad at all but one could argue that the Stax sets of the same vintage are better. Certainly more comfortable. Something for this thread though, as most know the new Orpheus had a name change last month (HE1060 to HE1) but what Sennheiser kept to them selves is an embargo on actually calling them "Orpheus". They are not meant to be called that in any official publication or by Senn representatives. Not sure what is going on there but this is a complete change from the earlier days. Ohh and me having this info has nothing to do with me asking how much a set would cost me...
  21. spritzer
    I've lost count of how many basket cases I've received over the years. Buying vintage is a huge risk but so many people don't want to face that.
  22. spritzer
    Considered but found impossible in this universe.
  23. spritzer
    My point is that it might be an ok amp but it's very expensive and it is the master of nothing. Too the point though, I've been asked to marry a Carbon and a PureBipolar in the same chassis so that is something to consider. Could be fun...
  24. spritzer
    That's it, it's all about the different temperature rating. RN60D should be rated at 1/4W as this is mil-spec and made by a lot of companies (well used to at least).
  25. spritzer
    I'd replace the foam too even though these have a reduced backwave from memory.
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