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purr1n's Recent Activity

  1. purr1n liked Priidik's post in the thread Strength training and building muscle.

    The best part about resistance training is that you can have it all. You can do hypertrophy, strength and power training in one...

    Jul 18, 2025 at 7:50 AM

  2. purr1n replied to the thread Strength training and building muscle.

    I used RP Strength for a while. The problem is that it really wasn't even a real app but instead took you to a web interface. It...

    Jul 18, 2025 at 7:38 AM

  3. purr1n liked Priidik's post in the thread Strength training and building muscle.

    Once you grind years with the iron it makes sense to log your training to understand what is going on. Progression and growth are harder...

    Jul 18, 2025 at 7:32 AM

  4. purr1n replied to the thread Inferred Jitter visual guide.

    Front paged this thread because it's stuff like this that starts to truly delve into measurements considering how the science of...

    Jul 17, 2025 at 9:04 PM

  5. purr1n rated atomicbob's post Epic in the thread Inferred Jitter visual guide.

    Inferred Jitter visual guide Terminology for this discussion Fs: sample rate frequency f: sinusoid signal frequency (stimulus) inferred...

    01 20250716 inferred jitter 44K Wiim Ultra spdif-opt in to dac1221 USB input SE output annotated.png 02 20250716 inferred jitter 44K Vaunix Lab Brick to dac1221 USB ASIO input SE output.png 03 20250717 inferred jitter dac1221 spdif coax input SE output t3 zoom annotated.png 04 20250716 inferred jitter 44K Wiim Ultra spdif-opt in to dac1221 USB input SE output annotated.png 05 20250716 inferred jitter 44K Vaunix Lab Brick to dac1221 USB ASIO input SE output annotated.png 06 20250717 inferred jitter dac1221 spdif coax input SE output 120 Hz sidebands.png 07 20250717 inferred jitter dac1221 spdif coax input SE output 240 Hz sidebands.png 08 20250717 inferred jitter dac1221 spdif coax input SE output 360 Hz sidebands.png Jul 17, 2025 at 8:59 PM

  6. purr1n replied to the thread Wiim Pro and Ultra Technical Measurements comparison.

    Yes listening. However, when I see obvious symmetry sidebands like that so far away from the signal, I worry. There is some correlation...

    Jul 17, 2025 at 8:44 PM

  7. purr1n replied to the thread Wiim Pro and Ultra Technical Measurements comparison.

    [IMG] I was going to do the mark up tge sidebands yesterday but got distracted. You already beat me to it. Looks disturbing. The Ultra...

    Jul 17, 2025 at 6:58 AM

  8. purr1n rated atomicbob's post Epic in the thread Wiim Pro and Ultra Technical Measurements comparison.

    @earnmyturns has provided a nice explanation. I'll give a more visual description specifically oriented to dScope measurements....

    20250716 inferred jitter 44K Wiim Ultra spdif-opt in to dac1221 USB input SE output annotated.png 20250716 inferred jitter 44K Vaunix Lab Brick to dac1221 USB ASIO input SE output.png 20250716 inferred jitter 44K Dante RDL SF-ND2 to dac1221 spdif coax input SE output.png Jul 17, 2025 at 6:53 AM

  9. purr1n replied to the thread Wiim Pro and Ultra Technical Measurements comparison.

    I don't know how you reached this conclusion. This (Wiim Ultra performing at the level of the usual references around here) hasn't been...

    Jul 15, 2025 at 10:14 AM

  10. purr1n replied to the thread Schiit Aegir 2 Power Amp Impressions.

    Yeah. The Aegirs as monoblocks just end up with a different sonic profile. I prefer the Aegir in stereo. The approach I took was a bit...

    Jul 15, 2025 at 10:08 AM
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