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nefilim

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  1. ps. When I started with AudioLense early last year, I was looking for a mic preamp to go with my RME ADI2-Pro ... it seemed like many of them added some kind of signature or colouration which I guess is desirable to many recording engineers (can we still not add any of this in post?). One of the few I could find that seemed more suitable for accurate measurements was the Grace Design m101 ... pretty pricey but bit the bullet, been happy so far.
  2. This was awesome - thanks so much! I have a very soft spot for the LS50s and until a few months ago they were my mains (partnered with two JL Audio subs). I still maintain they are one of the few true bargains out there in this crazy "hobby".
  3. Thanks so much @mitchco - played around a fair bit and found the default TTD filtering works best for me, as far as I can tell at least, I'll share another video soon :)
  4. oh also, wondered what does the measured impulse response say about the polarity of the mains vs subs and if that's a problem?
  5. hi @mitchco - thanks again for all your contributions. i'm trying to monkey-see monkey-do but not faring too well i'm quite uncertain about my phase results - i made a few a short video to show where i'm at below. donny is out of his element here but that looks quite awful to me and quite unlike the results you got, is that a huge amount of pre ringing or am i misunderstanding? i'm using the default TTD filter procedure as shown below but if i were to play with a custom procedure, i'm unclear how to adjust the windows based on the measured phase response, i'm wondering how you made the decision in your first article: "First, let’s try a shorter time correction window in the bass, so now I have 2 cycle window both in the low and high frequencies as entered in the True Time Domain Subwindow:" is there something in the measured data that can guide one on how to adjust the time windows? especially since i have huge peaks from the L sub in the phase response as far out as 45ms and 67ms! i do see in the simulated response that those peaks have disappeared... so that appears to be a good sign at least? just to add a little bit of background: my room is similar to yours, i'm against the long wall left of the center, on the right rear it opens up to the kitchen 2 x Kef (semi) full range speakers driven by a power amp (channels 1 & 2) 2 + 1 x JL Audio subwoofers right channel is two cascaded subs, both should be receiving the same signal (channel 3), left channel is a single sub (left of the center of the room) (channel 4) anywhere here is just terrible, both in freq response and phase response - i really want to find a reasonable location for the left sub somewhere here but it just haven't been able to yet RME ADI2-Pro in multichannel USB mode, channels 1/2 goes to power amp L/R and channels 3/4 goes to 3 subs i've manually adjusted the phase knob on the left sub which is closer to the seating area so that the first peaks of the sub impulses lines up (they go out of phase later...) - i'm sure AudioLense can correct for that but figured might as well since these subs (and speakers) are used in a home theater system too (Audyssey isn't the best:) here's my speaker setup, i've gone quite a different way than you have (since the mains have integrated crossovers - unfortunately). coincidentally, going this way i have noticed i cannot enter a low pass value on the third tab for the subs, i believe AudioLense just uses the high pass value for the mains as low pass for the subs (judging by the XO graphs), i would have liked to play with them overlapping a bit more. thank you!! peter
  6. hi @mitchco - wondering if you have larger versions of the images in the article? clicking them still shows thumbnail size :( would love to see the details!
  7. yes @Solstice380 - trying the beyerdynamic MM 1 currently - I have the 0 and 90 degree calibration files
  8. Thanks so much cjf - the grace design looks like the best I'll be able to do < $1k, the specs looks excellent, bit the bullet! ps. How has your experience been with Audiolense?
  9. It seems to be quite hard to find one that's reasonably affordable, not tube, not noise shaping / EQ etc etc - preferably class A solid state and flat from 20hz - 20khz. The earthworks preamps are bit too $$$.
  10. Do you have any references? I'd like to see more "objective measurements". https://www.audiosciencereview.com/forum/index.php?threads/measurements-and-review-of-schiit-yggdrasil-dac.2358/ https://www.audiosciencereview.com/forum/index.php?threads/measurement-and-review-of-schiit-bifrost-multibit-dac.2319/ https://www.audiosciencereview.com/forum/index.php?threads/review-and-measurements-of-schiit-fulla-v1-dac-and-headphone-amplifier.2641/ ps. nice GTV!!
  11. I have no dog in this ... difference of opinion but apparently Schiit DACs don't measure very well either... could there actually be a correlation between certain measurements and perceived quality ??
  12. Which are you using currently in your system? The E38 or the stack Myteks ... or something else now?
  13. @Keith_W did you make any headway with this? Curious if you find something amiss with the HQP convolution output
  14. Thanks Dallas, curious, which channels are you connecting to the Benchmark ?
  15. Not finding a lot of documentation on Audiolense' site, I'm wondering if anyone know what this means: "Clock drift correction in measurement is now practically perfect." Does this imply I can measure on a different device than the playback chain? eg one USB device for ADC and another USB device for a DAC?
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