atomicbob
Last Activity:
Jul 8, 2024
Joined:
Sep 27, 2015
Messages:
2,569
Trophy Points:
113
Positive ratings received:
21,010
Neutral ratings received:
3
Negative ratings received:
9

Post Ratings

Received: Given:
Like 19,249 5,468
Dislike 5 0
Respectfully Disagree 3 0
heart 138 77
Miss Information 4 0
Epic 1,458 84
Agreed, ditto, +1 165 18
Gender:
Male
Location:
On planet
Occupation:
acoustic research scientist

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atomicbob

dScope Yoda, Male, from On planet

Pyrate BWC MZR

Sorry to be offline for awhile. Much catching up in order. Been through enough CT scans I might begin to glow in the dark ... Jul 2, 2024

atomicbob was last seen:
Jul 8, 2024
    1. atomicbob
      atomicbob
      when reading my latest post about APx555 vs ARTA + MOTU use the following translation key:
      1. Cryptowolf likes this.
      2. atomicbob
        atomicbob
        substitute "obsess" with "give a shit"
        Oct 17, 2022
      3. Qildail
        Qildail
        I can see where the decoding key might be needed. It’s a delicate nuance of meaning for sure…
        Oct 18, 2022
        atomicbob likes this.
    2. atomicbob
      atomicbob
      Last day of vacation. Going to uncork some good reds and watch old BW movies.
      1. gixxerwimp
        gixxerwimp
        I thought you'd retired...
        Oct 23, 2022
        atomicbob likes this.
      2. atomicbob
        atomicbob
        @gixxerwimp - semi-retired. Still put in 20 ~ 30 hours / week for corporate mentoring and doing research.
        Oct 24, 2022
    3. atomicbob
      atomicbob
      Taboo mkiv must have been tuned for The Who, especially Tommy. Amazing Journey is just that, with HD800S and Holo Spring2 KTE.
    4. atomicbob
      atomicbob
      Vaccination time ... human pin cushion. I think I've been vaccinated against everything known.
      1. Cryptowolf, zottel, Jinxy245 and 5 others like this.
      2. View previous comments...
      3. atomicbob
        atomicbob
        Well, one data point, I haven't had even so much as a common cold since 2019. Yet I have been exposed to plenty of ill people due to my paths of exposure involving medical device research, etc.
        Oct 8, 2022
        Cryptowolf likes this.
      4. Thad E Ginathom
        Thad E Ginathom
        The first thing to distrust in life is anonymous "studies!"

        Do I trust the covid vaccine. I had three and... covid. I'll admit to seeing the expectations continuously downgraded. But I'll probably get more when they come along.
        Oct 8, 2022
        Cryptowolf and atomicbob like this.
      5. Thad E Ginathom
        Thad E Ginathom
        I got covid as a 70th birthday present. I'm a little bit old.

        It wasn't nice, but it wasn't /too/ horrible. Who knows? without the vaccines I may have been gasping my last breath into a ventilator.

        I don't know. There isn't a control me living an identical life except for distilled-water-only vaccines!
        Oct 8, 2022
        Cryptowolf and atomicbob like this.
    5. atomicbob
      atomicbob
      If you were looking for the Piety 32R Lo gain pdf report, I forgot to attach it last night. The post has been updated to include the report.
      1. View previous comments...
      2. Qildail
        Qildail
        I am simply amazed by the breadth of all these measurements. I don't understand a lot of it (still; trying to learn), but I can recognize concerted hours of effort when I see it. We are spoiled by the richness of your work.
        Oct 4, 2022
        atomicbob, Cryptowolf, zottel and 2 others like this.
      3. Vtory
        Vtory
        Thanks that's exactly what I was looking for. I was about to ask if it was not updated by tomorrow.
        Oct 4, 2022
        atomicbob likes this.
      4. atomicbob
        atomicbob
        @Qildail : thank-you. It takes many many hours to make the measurements, vet the data, prepare pre-post data organization and writeup and then execute the posts.
        Oct 5, 2022
        Qildail and CEE TEE like this.
    6. atomicbob
      1. MLegend
        MLegend
        Is the link blocked for anyone else? When I click on the link it opens a blank page with "about:blank#blocked" in the search bar.
        Oct 1, 2022
      2. atomicbob
    7. atomicbob
      atomicbob
      Have been lying low lately. Outpatient procedure last week. Good news is no cancer. Bad news is dermatologist didn't use local anesthesia.
      1. View previous comments...
      2. Case
        Case
        Cancer is a demon...
        Sep 20, 2022
        Cryptowolf, Jinxy245 and atomicbob like this.
      3. atomicbob
        atomicbob
        @Jinxy245 & @Wilson : agreed. Cancer is very bad news. My wife (& best friend) is a 20+ year survivor. Chemo & radiation back then were brutal. So in comparison I'm kind of whining.
        Sep 20, 2022
      4. Cryptowolf
        Cryptowolf
        f**k cancer. I've lost too many loved ones, including dogs, to this scurge.
        Sep 20, 2022
        atomicbob and Jinxy245 like this.
    8. atomicbob
      atomicbob
      So many measurements, so little time. Windows 10 USB audio has many paths to diminished performance.
      1. zottel, Azimuth, MLegend and 4 others like this.
      2. View previous comments...
      3. Riotvan
        Riotvan
        @Azimuth hmm can't say i've really noticed that problem, maybe because most of my files are 16bit 44.1kzh? For other stuff like youtube etc i just use pipewire or pulse.
        Sep 13, 2022
        Azimuth likes this.
      4. Azimuth
        Azimuth
        I could not get any Linux distro to output high-res no matter what my settings were. Even even over USB - it would just down convert everything. And I changed a bunch of settings and lines in the code files of Pulse and Alsamixer...could never get it to work.
        Sep 13, 2022
        Riotvan likes this.
      5. Riotvan
        Riotvan
        Did you play with the hw:0,0 stuff? That should be bit-perfect. Even so there are disable resample setting for for asound.conf and if you keep the alsamixer at unity gain it should not touch anything.
        Sep 13, 2022
        zottel likes this.
    9. atomicbob
      atomicbob
      Diverging from the current communication trend, 110 / 175 measurement operations completed for yggdrasil LIM. Some take hours, others mins.
      1. jexby
        jexby
        someone somewhere should be paying you for this…..
        Aug 26, 2022
        gixxerwimp, Jinxy245, obsiCO and 6 others like this.
      2. atomicbob
        atomicbob
        @jexby Thank-you for the sentiment. To provide perspective, corporate typically pays me 3K to 4K for similar amounts of work.

        Awhile back @GoodEnoughGear sent a sampling of wonderful wines, many produced in his neighborhood in South Africa as a really nice perk.
        Aug 28, 2022
        GoodEnoughGear likes this.
    10. atomicbob
      atomicbob
      A most non-sequitur trilogy: Thick as a Brick, I Think We are All Bozos on this Bus, Dark side of the Moon. In that order. Explains a lot.
      1. Qildail, Jinxy245, Gazny and 3 others like this.
    11. atomicbob
      atomicbob
      I have many megabuck DACs, Amps, headphones in my lab, yet the Modi 3E, Vali 2+, ETA Mini Closed / HD800S are rocking my ears lately.
      1. zottel, sheldaze, Soups and 15 others like this.
      2. View previous comments...
      3. atomicbob
        atomicbob
        I still need an amp that can heat the lab, provide great visuals with those Linlai tubes and sound great too.
        Jul 27, 2022
        rhythmdevils likes this.
      4. rhythmdevils
        rhythmdevils
        I’ll trade you a really nice lava lamp. Last offer.
        Jul 27, 2022
        Boops likes this.
      5. Elnrik
        Elnrik
        I bid two lava lamps, a falafel, and a slightly used Dixie cup
        Jul 27, 2022
        rhythmdevils likes this.
    12. atomicbob
      atomicbob
      Interesting details from AES meeting on Woodstock 1969 sound system from Bill Hanley, Chris Langhart, John Chester and others ...
      1. gixxerwimp, Josh83, DigMe and 5 others like this.
      2. View previous comments...
      3. atomicbob
        atomicbob
        Amps used were McIntosh & Crown
        MC3500 - 16
        MC2105 - 3
        MC275 - 2
        DC300 - 2
        Over 12.7KW of amp power

        Speakers were conservatively rated at 10 KW actual continuous usage.
        Jun 23, 2022
        Cryptowolf, dubharmonic and Cspirou like this.
      4. atomicbob
        atomicbob
        Festival power:
        1200 amps per phase, 3 phase power for a total of 3600 A
        and 346 KVA total.
        Jun 23, 2022
        Cryptowolf, dubharmonic and M3NTAL like this.
      5. CEE TEE
        CEE TEE
        Oh, my friend has a 2105 and the HD600 have big bass and sound great out of it...
        Jun 25, 2022
        atomicbob likes this.
    13. atomicbob
      atomicbob
      Attending an AES meeting on Woodstock 1969 sound system details with Bill Hanley & Chris Langhart presenting.
      1. crenca
        crenca
        Was there anything special or is it mostly of historical interest?
        Jun 23, 2022
        Cryptowolf likes this.
      2. atomicbob
        atomicbob
        @crenca - see latest status update
        It was a detailed technical review of the festival sound and power and how it guided development for generations of sound reinforcement rigs.
        Jun 23, 2022
    14. atomicbob
      atomicbob
      Spending time listening to unmodified original HD800, HD8xx and HD800-Jmod, not to be confused with JAR800 which I haven't heard.
      1. View previous comments...
      2. atomicbob
        atomicbob
        HD8xx has a better low frequency leading edge impact for sounds such as kick and upright bass, which I enjoy. But it sounds a bit recessed above 3000 Hz leaving me feeling as if a treble tone control was turned down 3dB.
        Jun 14, 2022
        gixxerwimp likes this.
      3. gixxerwimp
        gixxerwimp
        My HD800 J-mod variant hasn't been getting a lot of love since Voldemort and then BP800 arrived, but it's still a great sounding headphone.
        Jun 15, 2022
      4. atomicbob
        atomicbob
        @gixxerwimp Still enjoy my HD800-Jmod immensely but need to have a backup plan if or when they deteriorate for any reason.
        Jun 15, 2022
        gixxerwimp likes this.
    15. atomicbob
      atomicbob
      Ditto! Ditto? you provincial putz?!
      1. Cryptowolf and Biodegraded like this.
      2. atomicbob
        atomicbob
        the above prompted by the new ditto / +1 button.
        Jun 4, 2022
        Cryptowolf likes this.
    16. atomicbob
      atomicbob
      I've been MIA for over a week due to numerous maintenance issues occurring simultaneously. Individually none are that big just overwhelming.
      1. Jinxy245 likes this.
      2. View previous comments...
      3. Case
        Case
        Problems are still problems, I hope they all resolve soon, Bob.
        May 8, 2022
      4. Cryptowolf
        Cryptowolf
        Any of these alone might be merely annoying, but together it sounds exhausting. I hope things turn around for you and yours soon.
        May 8, 2022
        dematted, atomicbob, zottel and 4 others like this.
      5. atomicbob
        atomicbob
        Issues and problems are resolving. It was overwhelming to have so many occur in rapid succession in a short span of time. Digging out, things are better. Still, my issues pale in comparison to those experiencing madness of war, or fighting chronic illness.
        May 9, 2022
        Cryptowolf and Case like this.
    17. atomicbob
    18. atomicbob
      atomicbob
      New music is one of life's pleasures. Thank-you to @Jinxy245 and @hikergrl for the recent suggestions.
      1. Azimuth, jnak00, Inoculator and 14 others like this.
      2. Jinxy245
        Jinxy245
        Always a pleasure to share music. I'm very glad you enjoyed!
        Apr 18, 2022
        Case, Phantaminum, hikergrl and 2 others like this.
      3. hikergrl
        hikergrl
        I've heard so much terrific music from the "listening now" thread. Its lovely to experience such a huge range of styles. Thanks Bob for being so generous with your time and expertise with all the contributions you make at sbaf, it gives folks a lot of joy - you have a big heart!
        Apr 18, 2022
      4. atomicbob
        atomicbob
        Johnnie B. Bad and The Ego Trap both drove my musical enjoyment meter to a high level. Just what was needed on a day that had not been going well up to those introductions.
        Apr 19, 2022
        hikergrl and Jinxy245 like this.
    19. atomicbob
      atomicbob
      Aging is not for the faint of heart. Latest post in jazz reborn conveys the feeling.
      1. Jinxy245, Riotvan, Sqveak and 4 others like this.
      2. GoodEnoughGear
        GoodEnoughGear
        My dad passed two weeks ago, so this is close to me right now. One of my favorite albums, BTW.
        Apr 12, 2022
      3. Case
        Case
        Apr 12, 2022
        atomicbob likes this.
      4. Riotvan
        Riotvan
        My condolences…
        Apr 12, 2022
        atomicbob likes this.
    20. Lyander
      Lyander
      Thank you for being here and sharing as much as you do; the stuff you posted in the recording thread is insightful and genuinely giddying to read
      1. atomicbob, Case, yotacowboy and 5 others like this.
      2. View previous comments...
      3. Senorx12562
        Senorx12562
        Agree wholeheartedly with the sentiment, though I don't think I am capable of giddy.
        Mar 31, 2022
        Lyander, atomicbob and Cryptowolf like this.
      4. atomicbob
        atomicbob
        After seven decades I have done many things and hope they are of service to the world in general. Many of my audio endeavors were to refine my understanding of communication, especially during acute events when lives hang in the balance. Surprising the level of overlap between musical endeavors and critical communication.
        Mar 31, 2022
      5. Senorx12562
        Senorx12562
        I am thinking that neuroscience will reveal that it isn't all that surprising after all.
        Mar 31, 2022
        Lyander, Cryptowolf and atomicbob like this.
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  • About

    Gender:
    Male
    Location:
    On planet
    Occupation:
    acoustic research scientist
    Gear List:
    See information section for my opinions
    My enjoyment of particular recreational music systems is inextricably intertwined with my personal preferences. The following lists are representations of my tastes in music, components and listening levels. The section on music is only a sample of my library but should provide sufficient insight into my musical preferences. I am rigorous and exacting with component measurements. That doesn’t automatically make my opinions worth anything without context. Use the following information to decide how well your own preferences converge or diverge with mine when I make comments about equipment in the forum. DO NOT blindly assume a positive comment from me about some component or headphone will automatically translate to auditory happiness on your part. Likewise you may find yourself enjoying something that I don’t. Consider (learning) your own personal preference.

    Music
    50s, 60s & 70s jazz
    Louis Armstrong, Charles Mingus, Thelonious Monk, Sonny Rollins, Miles Davis, Duke Ellington, Cannonball Adderly, Les McCann & Eddie Harris
    Recorded by Columbia (Frank Laico, Fred Plaut), Bluenote (Rudy Van Gelder), Contemporary Records (Roy DuNann)

    More recent jazz artists
    Wynton Marsalis
    Dave Grusin
    Dave Brubeck
    Bela Fleck
    Chick Corea
    Christian McBride
    Wycliffe Gordon
    Ingrid Jensen
    Steve Treseler
    Terell Stafford
    Ronnie Earl
    Steve Gadd Band
    Charlie Haden
    Brad Mehldau

    Medeski, Martin & Wood
    Medeski, Scofield, Martin & Wood
    Ill Considered
    Snarky Puppy
    Pat Metheny

    Artfully deviant
    Steve’n’Seagulls - Thunderstruck
    Two Cellos - Thunderstruck

    A class by himself
    Santana

    60s & 70s rock
    Emerson Lake & Palmer
    Blood Sweat & Tears
    Pink Floyd
    Jethro Tull
    JJ Cale
    Little Feat
    Dave Matthews Band
    Chicago
    Queen
    Cat Steven – Tea for the Tillerman
    Grateful Dead
    Lead Zeppelin

    Tangerine Dream
    Bruce Becvar
    Gary Stroutsos

    Classical composers
    Mozart
    Bach
    Beethoven
    Respighi
    Vivaldi

    Special
    Canadian Brass

    Listening Levels dBSPL
    60~70 quiet, background listening
    70~80 recreational and critical listening
    80~90 rocking out, often with libations at hand
    90~100 Santana Black Magic Woman / Gypsy Queen, ELP Tank - drum solo

    I tend to listen at quieter levels where electroacoustic transducers exhibit greater linearity. Higher levels are more likely to have greater distortion and require higher power amplification. The result is substantial deviation in opinions by listeners attempting to compare headphones when they are listening at different levels.

    DACs
    Treasured
    Holo Audio KTE Spring2
    Schiit Bifrost2
    Matrix Audio X-Sabre Pro
    Lavry DA11

    Enjoy
    Schiit Yggdrasil A2
    Schiit Gungnir MB A2
    Soekris 1421

    Work (recording, editing, acoustic measurements)
    Lavry DA11, AD11
    RME ADI-2 Pro

    Rather not listen
    Auralec Vega
    Resonessence Labs Concero
    Topping D30
    Objective DAC

    Universal Turd
    Audio-gd S19

    Amps
    Treasured
    Eddie Current Studio B
    Eddie Current Zana Deux SE
    ECP Audio DSHA-3F
    ECP Audio T4
    Shortest Way 51+
    Cavalli Liquid Crimson

    Enjoy
    Cavalli Liquid Platinum
    Schiit Lyr3 with PSVane 6SN7
    EC ZDT Jr after hum reduction modifications
    BottleHead Crack (PS modified, no speedball, e80cc driver)
    Cavalli MCTH
    Schiit Magni3+
    Schiit Vali2 with 6CG7
    Project Sunrise with 12BH7 and Linear Power Supply

    Rather not listen
    Objective 2
    Topping anything

    Headphones

    Treasured
    Sennheiser HD800-Jmod
    Focal Stellia
    Sennheiser HD600

    Enjoy
    Sennheiser HD650
    Focal Clear
    HiFiMan HE-500

    Rather not listen
    Most anything planar except for the HE-500

    System
    I developed a VST chain dubbed Immersion Virtualization System which I employ for my recreational listening. This has a substantial influence on my perception of component performance. See the IVS descriptions in the following links:

    https://www.superbestaudiofriends.o...-synergy-special-sound.54/page-14#post-129407

    https://www.superbestaudiofriends.o...-synergy-special-sound.54/page-29#post-221217

    Signature

    Organizing chaos for seven decades.