1. skem
  What do people think of the idea of digitally cutting signal by 3dB to eliminate distortion from intersample overs?
  
  Jan 25, 2019
  1. bazelio and Vtory like this.
  2. View previous comments...
  3. m17xr2b
    Digital attenuation has artefacts. If you can't hear them your system is not resolving enough.
    
    Jan 26, 2019
    
    Psalmanazar, bazelio and skem like this.
  4. GoodEnoughGear
    Shiity digital attenuation and/or extreme digital attenuation. Otherwise everything processed digitally would have artifacts...all those DSP plugins fouling up the music.
    
    Jan 26, 2019
    
    Psalmanazar and bazelio like this.
  5. Azteca
    @m17xr2b not all digital attenuation is created equal. Though I see @GoodEnoughGear beat me to the punch. If you're that concerned, try Airwindows PurestGain or even more extreme, shift it down exactly one bit. https://www.airwindows.com/bitshiftgain/
    
    Jan 26, 2019
    
    Psalmanazar and bazelio like this.
2. skem
  It’s 8*F here, but casually watched the lunar eclipse go into totality from the hot tub.
  
  Jan 20, 2019
  1. Cryptowolf, Syzygy, brencho and 1 other person like this.
  2. spwath
    I just see clouds and snow falling unfortunately.
    
    Jan 20, 2019
    
    DigMe likes this.
3. skem
  I’m so curious why the cold Gungnir Multibit sounds bad. I somehow doubt it’s the resistors. Makes no physical sense.
  
  Jan 19, 2019
  2. View previous comments...
  3. famish99
    Most likely the clocks since it's not oven controlled. Resistors do change with temperature but they probably heat up quickly enough.
    
    Jan 20, 2019
    
    Psalmanazar likes this.
  4. skem
    More thinking: if all the resistors in the R:2R have the same temp coefficient, nothing should change. If the rungs and the rails have different temp coefficients, then we would get harmonic distortion.
    
    As long as one clock is MCLK, shouldn’t the sound be slight out of tune but otherwise distortion free?
    
    Jan 20, 2019
  5. famish99
    Average clock frequency isn't the problem as much as the jitter. I would say that within the chip the resistors can heat up unevenly. Tbh I'm pulling at straws myself, but the end result is hard to deny.
    
    Jan 20, 2019
    
    Psalmanazar and skem like this.
4. skem
  Feel like Tidal is cheating you? You’re not the only one. https://bit.ly/2FoS7Bi
  
  Jan 14, 2019
  1. FallingObjects and Deep Funk like this.
  2. Deep Funk
    Their software is acting strange. Even when playing album cued tracks shuffle kicks in. I might only keep it for new album releases and then go back to making my own play lists like the old days.
    
    Jan 15, 2019
  3. Azimuth
    In talking to non-Audio friends work, I was surprised how many were unfamiliar with Tidal.
    
    Jan 15, 2019
5. skem
  In SoCal to escape the miserable northeast winter—but no system with me. Is the better weather really worth the lack of music?
  
  Jan 10, 2019
  1. Jinxy245, brencho and dubharmonic like this.
  2. View previous comments...
  3. bixby
    @Uri Cohen - I guess Birth Control not needed for those 9 months, and do they reattach when winter comes :)
    
    Jan 11, 2019
  4. YMO
    LOL. After living in the sweatbox for nine months of the year for almost 20 years, I need a break.
    
    Jan 11, 2019
  5. Merrick
    You’re in SoCal, screw the system. Spend every night seeing an amazing live show.
    
    Jan 12, 2019
6. skem
  May the New Year bring you music, joy, and perfect gear.
  
  Dec 31, 2018
  1. Jerry, BillOhio, dubharmonic and 11 others like this.
7. skem
  And now....not Christmas.
  
  Dec 27, 2018
  1. Wilson and BillOhio like this.
8. skem
  A sunny Xmas day with Vince Guaraldi on the HiFi, a box of truffles, and a coffee. Peace to all.
  
  Dec 25, 2018
  1. Cryptowolf, Jinxy245, pavi and 7 others like this.
  2. Kunlun
    Whoops, did the accidental-fat-thumb-dislike/undislike/like. Peace!
    
    Dec 25, 2018
    
    skem likes this.
9. skem
  Gumb-y autocorrects to Gungnir Multibit! Fancy that.
  
  Dec 24, 2018
  1. OldDude04 and Jinxy245 like this.
  2. View previous comments...
  3. skem
    It’s a good thing. I’d write out the Schiit names if I didn’t have to lookup the spelling each time. :-/
    
    Dec 24, 2018
  4. rtaylor76
    SEO is for realz.
    
    Dec 24, 2018
  5. Lyander
    Just when I was getting used to the shortform after forcing myself to adopt it, haha. But yeah, this definitely helps when looking stuff up, so while I can see how it'd suck for some SEO wins out
    
    Dec 24, 2018
10. skem
  Pass B1 pre-amp gets finished today. Includes a faceplate cut on the world’s most precise water jet cutter
  
  Dec 22, 2018
  1. brencho, Soups, dubharmonic and 6 others like this.
  2. Cspirou
    Nice! Where is the water jet? Through work?
    
    Dec 22, 2018
  3. skem
    Yes, at my work. I also made a walnut enclosure there. I’ll post pics soon.
    
    Dec 22, 2018
    
    philipmorgan and dubharmonic like this.
  4. skem
    Details now here: https://www.superbestaudiofriends.org/index.php?threads/pass-b1-volume-control.7254/
    
    Dec 24, 2018
11. skem
  I have to say BWC, MZR really feels like a high-school clique. “Friend” not feeling exclusive enough? Need to be cooler, like PJ and Squi?
  
  Dec 18, 2018
  1. rtaylor76 likes this.
  2. View previous comments...
  3. Lyander
    Also, disagreeing with others is encouraged, so long as it's done nicely and can generate good discussion. Some people can be assholes and not receive sanctions, but eh, that's just nepotism— nothing anyone living in a democratic country wouldn't be familiar with.
    
    Dec 20, 2018
    
    OldDude04 likes this.
  4. OldDude04
    @Lyer25 "nothing anyone living in a democratic country wouldn't be familiar with."
    
    That gave me a good chuckle, the funniest stuff is always rooted in truth.
    
    Dec 20, 2018
    
    Lyander likes this.
  5. Lyander
    It makes sense, considering how people use humour to sublimate negative emotions and stuff :P
    
    No but really we basically have fiefdoms in some cities here. Blergh.
    
    Going back on-topic, I'm still okay with the tags, helps keep in mind people I can bug for info :))
    
    Dec 20, 2018
12. skem
  Bought myself a guitar. 40th birthday on the horizon. Let the mid-life “crisis” begin!
  
  Dec 4, 2018
  1. bengo, Cryptowolf, LetMeBeFrank and 8 others like this.
  2. DigMe
    What'd you get?
    
    Dec 4, 2018
  3. Soups
    Man, I'm nearing that age as well, and about to sell most of my guitars. To afford some decent speakers. Crisis indeed.
    
    Dec 4, 2018
    
    westermac and DigMe like this.
  4. ButtUglyJeff
    I got myself a new bass when I turned 40, b-day gift to self. My wife named it "midlife crisis"...
    
    Dec 5, 2018
    
    DigMe and Jinxy245 like this.
13. skem
  Well, today is my 1-year SBAF birthday... but sadly I have been too busy to play with audio stuff for a month now. And I have a cold.
  
  Oct 1, 2018
  1. brencho, Wilson and Thad E Ginathom like this.
  2. View previous comments...
  3. Kunlun
    That bird was banned from here a long time ago.
    
    Oct 1, 2018
    
    obsiCO, Jinxy245, JK47 and 3 others like this.
  4. Lyander
    ^That joke only works because you were the one who made it :))
    
    @skem Hope you get well soon!
    
    Oct 1, 2018
  5. bengo
    @skem You were just in the wrong place at the wrong time. My wife got shat on twice by the same pigeon twice in the space of 5 mins (with a change of clothes in-between). Second time she realized she was standing right under its branch.
    
    Oct 1, 2018
    
    Thad E Ginathom likes this.
14. skem
  Damn-it! Broke a famously irreplaceable STV-4H varistor.
  
  Sep 3, 2018
15. skem
  Just finished restoring an old Onkyo A7 for shits’n’giggles. Not bad, actually.
  
  Aug 29, 2018
16. skem
  All harmonics on Pioneer M22 were below the dynamic range of my HP analyzer. Just bought QA401 to go fishing with more bit depth
  
  Aug 27, 2018
  1. ultrabike likes this.
  2. Priidik
    Hardly surprising. Which HP ?
    
    Aug 27, 2018
    
    ultrabike likes this.
  3. ultrabike
    Second that one. Which HP?
    
    Aug 27, 2018
  4. skem
    HP3561A. It has a nice noise floor several dB below its -120dBV (1uV) spec, floating ground, and is capable of handling full power amp output up to 22V RMS without extra attenuators, but it’s buit on a 13-bit DAC, so the dynamic range is limited to 80dB. Porn here: https://accusrc.com/uploads/datasheets/5350_3561a.pdf
    
    Aug 27, 2018
17. skem
  As seen at work: https://i.imgur.com/pO1mWRe.jpg
  
  Aug 5, 2018
  1. Jinxy245 and LetMeBeFrank like this.
18. skem
  Very educational note on distortion: http://www.pmillett.com/file_downloads/ThesoundofDistortion.ppt
  
  Jul 15, 2018
  1. mphuongz, obsiCO, Elnrik and 5 others like this.
19. skem
  After 3 months of detailed rebuilding, careful component matching, and design edits, my Pioneer M22 is singing beautifully.
  
  Jul 13, 2018
  1. rlow, Lyander, A1Gear and 9 others like this.
  2. PTS
    Can you detail this in a forum post, or link to where you have? I'm interested to read.
    
    Jul 14, 2018
  3. skem
    Will do. I have lots of notes but first testing to see how good it is.
    
    Jul 14, 2018
    
    PTS likes this.
  4. skem
    So I have determined m22 is still not ready for prime time. It’s good, but my pass labs is cleaner so I’m going to do more work on the m22. Stay tuned.
    
    Jul 15, 2018
20. skem
  JVC FD-01 arrived today.
  
  Jul 9, 2018
  1. mphuongz, james444 and Lyander like this.
  2. View previous comments...
  3. Mimouille
    Did I describe them :D
    
    Jul 10, 2018
  4. skem
    Oops! I meant @james444
    
    Jul 10, 2018
  5. skem
    The JVC FD-01 is for sale. Not gym-friendly enough for me to keep (gym is my only IEM need)
    
    Jul 14, 2018
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About

Location:

People’s Republic of Cambridge

Occupation:

Pain In The Ass

Gear List:

System 1
Metrum Adagio -> Pass Labs XA25 -> B&W 801 Series III

System 2
Metrum Adagio-> Ayre MX-R -> HHR Exotics TLS-1 Walsh F remake

Headphone rig
(Source)->Pioneer M-22 (custom) -> HiFi Man HE1000 version 1

Have also had (owned or long-term demo)
================================
Lavry Black DA-11
Crane Song Solaris
Dangerous Music Convert-2
Hugo TT (uggh!)
NAD M51 DAC
Soekris 1541
PS Audio PerfectWave DAC
PS Audio DirectStream
Benchmark DAC3 HGC
Schiit Yggdrasil A1 DAC early
Schiit Gungnir Multibit A2 DAC early
Schitt Modi Multibit DAC
NAD D1050 DAC/Amp
Theta DS Pro Gen V R2R DAC
Mytek DAC
Mark Levinson Model 39 DAC
Antelope Zodiac Gold + Voltikus

Pass Labs XA30.8
First Watt F5 Turbo
Benchmark AHB2 Amp
NAD - M22 Class D
B&O ICEpower 125ASX2 Class D
Schiit Asgard2 Amp
Dragon Inspire IHA-1
Eddie Current Zana Deux
AURALiC Taurus MkII Amp
Woo WA3 Amp

HE-6 unmodded
HE6 felt mod
Focal Elear
HE-560
HD660s
HD650
LCD2C
Sundara
HD800 sdr mod
Verum 1

I don’t know squat. I’m only here for the free beer.
Interact
Content:

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Signature

DigiOne → Metrum Adagio → Pioneer M22 → HEK