Recent content by _js_
  1. _js_

    Sony MDR-7506

    Changing out the stock pads can and will affect the bass, so try that next! There are a lot of choices! I use the Auray Genuine Sheepskin earpads and really like them but I don’t think they are the choice if you want to de-emphasize the bass. Not sure though!
  2. _js_

    Schiit Valhalla Tube Rolling thread.

    So, now everyone knows who the awesome seller is! LOL! So, Guidostrunk, is there some sign that it will eventually go away--the crackle? Like does it get slightly better with each passing hour? Because the crackle on that one tube pretty much hasn't changed from the start. It's maybe...
  3. _js_

    Schiit Valhalla Tube Rolling thread.

    I need to burn in my JJ gold pins, but for what it's worth, on initial listen, I actually thought that on the whole they weren't even as good as the stock tubes. But I'm starting to get the feeling that I lucked out somehow on my stock tubes. Now, the Brimar CV4033's on the other hand, those...
  4. _js_

    Schiit Valhalla Tube Rolling thread.

    Oh good! I wondered if you might be kidding! Lol! Good one! Good idea! I’ll have to try it!
  5. _js_

    Schiit Valhalla Tube Rolling thread.

    Um, definitely turn this off before sticking pliers inside it! There are some seriously high voltages inside! And not just while it’s plugged in but for awhile afterwards, stored in the caps. Turn off, unplug, wait until white light goes away, and then and only then change tubes or adapters...
  6. _js_

    Schiit Valhalla Tube Rolling thread.

    Thanks for the quick replies! I have the Pulse phenolic not-made-in-china adapters as well as the socket savers, so hopefully no death grip! But, backing up, I have to say . . . Oh. My. God. Am I loving the Valhalla 2! Just with the stock tubes! I . . . don’t really have words . . . the...
  7. _js_

    Schiit Valhalla Tube Rolling thread.

    Ok, so, I have a quick question: How would you remove a 12Axx to ECC88 adapter (or socket saver) from the V2 once you’ve installed it?
  8. _js_

    Time-domain Transient Response Testing of RME ADI-2 DAC FS & Schiit Bifrost Multibit (scope captures)

    There is no way to select the sample rate on Bifrost. It automatically determines the sample rate of the incoming signal, and configures itself for the sample rate. And yes, of course, digital filtering must be done in the digital domain! LOL! Um, yeah, how else would it work? I shouldn't...
  9. _js_

    Time-domain Transient Response Testing of RME ADI-2 DAC FS & Schiit Bifrost Multibit (scope captures)

    Hi sajunky! So, regarding the 192ks/s plot, I have not bypassed any DSP. There is no means to do that on the Bifrost, and on the ADI-2, the filter was still set to "SD Sharp" (in the original post). More importantly, I was using a program called "AudioTest" to generate bit-perfect 1kHz square...
  10. _js_

    Time-domain Transient Response Testing of RME ADI-2 DAC FS & Schiit Bifrost Multibit (scope captures)

    I totally understand where you're coming from, and I definitely agree with and sympathize with it, and I promise, yes, I will do controlled, blind tests if / when I get to that point. I'm pretty busy these days, so I don't know when I'll get to that, but I'm listening to the RME with the "Slow"...
  11. _js_

    Time-domain Transient Response Testing of RME ADI-2 DAC FS & Schiit Bifrost Multibit (scope captures)

    Yeah, I get that. I was thinking about it some more and it dawned on me that the only signal that would get through the filtering on the A/D side up near 20khz is a pure sine wave. Even if it were actually a triangle wave, the filters would remove all the higher order harmonics, leaving you...
  12. _js_

    Time-domain Transient Response Testing of RME ADI-2 DAC FS & Schiit Bifrost Multibit (scope captures)

    Excellent, excellent information! Thank you all! Yes, I will do listening tests at some point! And yes, I will get some scope captures of the RME with the various filters! I should obviously have read the whole manual before now—then I would have seen the discussion about filters and impulse...
  13. _js_

    Time-domain Transient Response Testing of RME ADI-2 DAC FS & Schiit Bifrost Multibit (scope captures)

    Great info! Thanks so much for the post and scope shots! So RME offers SD sharp (short delay, sharp), sharp, SD soft, soft, and NOS. Would any of those have linear phase? And what DAC created the output shown above? (That you used Roon’s DSP upsampling on) And what other DAC’s besides...
  14. _js_

    Time-domain Transient Response Testing of RME ADI-2 DAC FS & Schiit Bifrost Multibit (scope captures)

    It was much more about seeing if I could find measurements to corroborate what I was hearing, and not really so much about distrusting my ears. And about seeing what was going on with Schiit’s time and frequency domain optimized filter / interpolation.
  15. _js_

    Apogee Groove Dac / Headphone Amp

    Inputs on something like a stereo receiver or PA system have very high impedance--typically 10kOhms--and so require very little driving power, and thus all that matters is the voltage in. Professional line level is 2V and consumer gear is looking for 1V. Since the Groove can put almost 5V into...
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