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Thread: ack's system - end of round 1

  1. #1
    VIP/Donor [WBF Founding Member] ack's Avatar
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    ack's system - end of round 1

    My main goal for a high end system is truth of timbre and articulation.

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    MartinLogan Odyssey - heavily modified, Mundorf crossover (CFC-14 coils & Supreme caps) & M6 binding posts, Mundorf woofer attenuators, structural modifications; see this and this
    REL Stadium III
    Spectral DMA-400RS monoblocks (2014 revision - new driver board)
    Spectral DMC-30SV
    Spectral SDR-3000 xport
    Berkeley Alpha DAC
    modified
    VPI Aries 3 table w/ liquid-floating platter/10.5i arm modified/SDS speed controller -
    granite, Sorbothane, & EAR Isodamp C-1002 isolation
    Ortofon A90 cartridge
    Pass XP-25
    phono heavily modified - see this and video
    Revox B77 MkII R2R
    Nakamichi Dragon
    modified by Willy Hermann Services
    Magnum Dynalab Etude FM
    modified
    MIT Matrix 50ic & Matrix HD90.1, MIT MA-X AES/EBU; MIT MA-X phono
    ; Kimber Hero - all with custom shielding
    MIT Z Strips; Shunyata Black Mamba CX/HC power cords; MIT Magnum Z-Trap
    Shunyata Typhon
    Zoethecus stand


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    System close-up

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    Amplifier detail - protection, driver stage, output stage with individually regulated power supplies per output device

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    Preamp detail

    Mods/Tweaks: Bass attenuation with adjustable Mundorf 60W 0.5 or 1.16 Ohm resistor network; 2.2 Ohm in-series with 10" woofer; aluminum 10"" woofer; custom-designed Mundorf crossover; Sorbothane & aircraft-grade EAR Isodamp C-1002 isolation under turntable. The speakers' + sub frequency response (RadioShack SPL meter, corrected as per Rives) at the listening position is as follows (ref at 1kHz):

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    Some great recordings I use for evaluation:

    Classical:
    1. Holst: The Planets/Mehta Los Angeles Phil/LP Decca 6529 and XRCD24
    2. Holst: The Planets/Buzz Brass/Fidelio LP FALP028
    3. Bruch: Scottish Fantasia/Horenstein LSO Oistrakh/LP Decca 6035
    4. Berlioz: Symphonie Fantastique/Kojian Utah Symphony/Reference Recordings LP RR-11
    5. Berlioz: Requiem/Abravanel Utah Symphony/Vanguard LP VCS10070
    6. Dvorak: CTO for Cello & Orchestra/Janos Starker/Dorati-LSO/Mercury LP SR90303
    7. Rimsky Korsakov: Scheherazade/Reiner-CSO/RCA LP
    8. Mahler: Symphony #2/BSO, Ozawa/Philips 420824-2
    9. Mahler: Symphony #2/LSO-Solti/Decca LP
    10. Brahms: Violin CTO/Heifetz-Reiner-CSO/RCA LP
    11. Beethoven: Appasssionata/Kamiya playing the Bosendorfer Imperial/RCA Direct-to-disc LP RDCE-4
    12. Beethoven: Violin CTO/Heifetz-Munch-BSO/RCA LP
    13. Beethoven: Symphony #9/Solti-SCO/Decca LP
    14. Mozart: Symphonia Concertante/Oistrakh/Decca LP
    15. Charpentier: Te Deum/Harmonia Mundi CD 901298
    16. Copland: Fanfare for the Common Man/Oue, Minnesota/Reference Recordings 93
    17. Guilmant: Symphony #1 for Organ and Orchestra/Tracey, BBC Phil/Chandos 9271
    18. Rachmaninoff: Symphonic Dances/Oue, Minnesota/Reference Recordings LP RM-1504
    19. Rutter: Requiem/RR 57
    20. Saints/Saens: Symphony #3: Telarc 80274 LP. Also BSO/Munch/XRCD24
    21. Shostakovich: Violin Concertos No1 op.99, No2 op.99/Scottish National Orch,Jarvi,Lydia Mordkovich/Chandos 8820
    22. Moussorgsky: Pictures at an Exhibition/CSO, Reiner/XRCD2
    23. Ramirez: Misa Criolla/Jose Carreras/Philips 420955-2
    24. Stravinsky: Rite of Spring/Oue, Minnesota/RR 70
    25. Mozart: Requiem/Dorian 90310
    26. Various: Joel Fan: World Keys (piano)/RR 106
    27. Britten: Britten's Orchestra/RR 120
    28. Liszt: Nojima Plays Liszt/RR 25
    29. Pipe Organ: Felix Hell; Mary Preston/RR 101 and 113
    30. Orff: Carmina Burana/Telarc 10056 LP (BTW, this is back in print)


    Other:
    1. Jarrett, Peacock, DeJohnette: Inside Out/ECM 1780
    2. Dick Hyman: From the age of Swing/RR 59
    3. Miles Daivs: Kind of Blue/Columbia LP
    4. Brubeck: Take Five/Columbia LP
    5. Paquito D'Rivera: Portraits of Cuba/Chesky JD145
    6. Mongo Santamaria: Mambo Mongo/Chesky JD100
    7. Bill Evans Trio: Sunday at the Village Vanguard/XRCD
    8. Keith Jarrett: La Scala/ECM 1640
    9. Proteus 7: For Your Ears Only/Dorian xCD 90258
    10. Krall: Live In Paris/ORG LP


    More pics at http://www.whatsbestforum.com/album.php?albumid=8

    ack
    Last edited by ack; 03-09-2016 at 07:25 AM.
    Sources: mod. VPI Aries 3;mod. JMW 10.5i/Ortofon A90;mod. Pass XP-25;Spectral 3000SL xport/mod. Alpha DAC;mod. Magnum Dynalab Etude;mod. Revox B-77II Amplification: Spectral DMC-30SV/DMA-400RS Speakers: Heavily mod. MartinLogan (custom Mundorf xover, cabling, woofers; structural mods);mod. REL Cabling: MIT Oracle 50ic,MA-X/Oracle 90.1 Power: MIT Z-Strip, Magnum Z-Trap; Shunyata Black Mamba CX HC cords, Typhon Tweaks: EAR Isodamp c1002 References: Live unamplified music
    System link WBF

  2. #2
    [WBF Founding Member] audioguy's Avatar
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    Very nice. What brand is the equipment stand/rack?

  3. #3
    VIP/Donor [WBF Founding Member] ack's Avatar
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    Thanks. Missed that - a good old Zoethecus
    Sources: mod. VPI Aries 3;mod. JMW 10.5i/Ortofon A90;mod. Pass XP-25;Spectral 3000SL xport/mod. Alpha DAC;mod. Magnum Dynalab Etude;mod. Revox B-77II Amplification: Spectral DMC-30SV/DMA-400RS Speakers: Heavily mod. MartinLogan (custom Mundorf xover, cabling, woofers; structural mods);mod. REL Cabling: MIT Oracle 50ic,MA-X/Oracle 90.1 Power: MIT Z-Strip, Magnum Z-Trap; Shunyata Black Mamba CX HC cords, Typhon Tweaks: EAR Isodamp c1002 References: Live unamplified music
    System link WBF

  4. #4
    Member Sponsor Addicted to Best! flez007's Avatar
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    Spectral + ML = ultrafast!

    Very nice system ack!

  5. #5
    [WBF Founding Member] kach22i's Avatar
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    Are you speaker shopping then?

    I've heard some of the latest from Martin Logan, still that familiar house sound if you will - which ain't bad.

    There may be some new wave speakers (ripple membrane non-NXT) expected to hit the market in the next few years. Maybe something to think about, if you are curious here is a link to a discussion:

    http://www.diyaudio.com/forums/plana...they-work.html
    George, Architect
    M/L Aerius + Tubes + Vinyl

  6. #6
    [WBF Founding Member] Gregadd's Avatar
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    Genesis 2.2jr. maybe Gary will make you a deal .
    Be civil to all, sociable to many, familiar with few, friendly to one, and enemy to none.
    Benjamin Franklin

  7. #7
    VIP/Donor [WBF Founding Member] ack's Avatar
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    Yes I am speaker shopping - I have the Summit X on my radar, as well as a new forthcoming speaker from Rockport, the Q3 and Sasha on my short list.
    Sources: mod. VPI Aries 3;mod. JMW 10.5i/Ortofon A90;mod. Pass XP-25;Spectral 3000SL xport/mod. Alpha DAC;mod. Magnum Dynalab Etude;mod. Revox B-77II Amplification: Spectral DMC-30SV/DMA-400RS Speakers: Heavily mod. MartinLogan (custom Mundorf xover, cabling, woofers; structural mods);mod. REL Cabling: MIT Oracle 50ic,MA-X/Oracle 90.1 Power: MIT Z-Strip, Magnum Z-Trap; Shunyata Black Mamba CX HC cords, Typhon Tweaks: EAR Isodamp c1002 References: Live unamplified music
    System link WBF

  8. #8
    Member Sponsor Addicted to Best! flez007's Avatar
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    Quote Originally Posted by ack View Post
    Yes I am speaker shopping - I have the Summit X on my radar, as well as a new forthcoming speaker from Rockport, the Q3 and Sasha on my short list.
    No Avalon in your options ack?, I understand that Neil himself used to drive his personal system with Spectral amps nevertheless the great appreciation he had with JRDG some time ago...

  9. #9
    VIP/Donor [WBF Founding Member] ack's Avatar
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    You know, I've heard from so many sources that they are 'tuned by ear' that I don't bother with Avalons - I really want science too behind what I buy.
    Sources: mod. VPI Aries 3;mod. JMW 10.5i/Ortofon A90;mod. Pass XP-25;Spectral 3000SL xport/mod. Alpha DAC;mod. Magnum Dynalab Etude;mod. Revox B-77II Amplification: Spectral DMC-30SV/DMA-400RS Speakers: Heavily mod. MartinLogan (custom Mundorf xover, cabling, woofers; structural mods);mod. REL Cabling: MIT Oracle 50ic,MA-X/Oracle 90.1 Power: MIT Z-Strip, Magnum Z-Trap; Shunyata Black Mamba CX HC cords, Typhon Tweaks: EAR Isodamp c1002 References: Live unamplified music
    System link WBF

  10. #10
    VIP/Donor [WBF Founding Member] ack's Avatar
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    These pics are for Myles He loves this grid thing I do with my analog, for azimuth and SRA adjustments; they are of the new Ortofon A90 installed recently
    Attached Images Attached Images   
    Sources: mod. VPI Aries 3;mod. JMW 10.5i/Ortofon A90;mod. Pass XP-25;Spectral 3000SL xport/mod. Alpha DAC;mod. Magnum Dynalab Etude;mod. Revox B-77II Amplification: Spectral DMC-30SV/DMA-400RS Speakers: Heavily mod. MartinLogan (custom Mundorf xover, cabling, woofers; structural mods);mod. REL Cabling: MIT Oracle 50ic,MA-X/Oracle 90.1 Power: MIT Z-Strip, Magnum Z-Trap; Shunyata Black Mamba CX HC cords, Typhon Tweaks: EAR Isodamp c1002 References: Live unamplified music
    System link WBF

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