Vac 200iq tube rolling question - Page 2
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  1. #11
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    Re: Vac 200iq tube rolling question

    Quote Originally Posted by Dguitarnut View Post
    My tube search is almost ended. I absolutely love the sound I’m getting.
    The verdict is in. KT-150’s still my favorite. The muddy bass of the KT120’s cleaned up nicely but the stage is still small compared to the 150’s imo.
    My current lineup in my 200iq is Kt150s and 4 grey glass RCA’s 6SN7GT’s
    I have also been rolling tubes in my Vac Master Preamp. My preference by a slim margin is for the Amperex 6922 PQ over the Mullard 6922.
    I am still gonna try some 6F8G with adapters eventually though.
    Larry, we need to give those KR KT150’s a spin.
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  3. #12
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    Re: Vac 200iq tube rolling question

    Larry,

    As a member of the fraternal order of the 200iQ, I have found the KT 150's vs the stock KT 88's to be more of a choice thing instead of a better or worse thing... This might be because my ears are my ears and everyone is different.

    I agree that the low end is always going to have more of a solid and defined punch with the 150's. For me, the 150's give up a little in the mid range in favor of the low end and a sharper high end. Sometimes that sharpness in the high end is great and sometimes it has too much bite for me. It might just be that I prefer mid range over everything else.

    Do you prefer the 150's across the board over the 88's?

    I have also recently tried out a nos set of Sylvania 6SN7 Tall Boys, and they definitely cleared up the entire picture by a full step for me... They made the 200iQ sparkle in a new way. I'm leaving them in!

    Mike / Larry: Sign me up for the 200iQ / KR KT150 testing crew! Just tell me where to order when you want to pull the trigger. Maybe we can get a power buy going?! ;-)
    Jeremy

    Speakers: Magico S3 MkII
    Power Amp: VAC 200iQ (stereo)
    Source/DAC/Preamplifier: MSB Reference DAC (Femto 77 / Dual Powerbase)
    Power: Shunyata Triton V3 / Shunyata Typhon QR / AQ NRG 20 Outlet / Dedicated 20 amp circuit
    -------------
    Power Cables: AQ Dragons to components / AQ Hurricane to Typhon QR
    Speaker Cables: MIT Heritage MI 2C3D - Level 1
    Interconnects: MIT Heritage MI 2C3D - Level 1 (XLR)
    Ethernet: AQ Vodka > Aqvox SE > AQ Diamond > MSB Reference DAC
    Racks: Critical Mass Sotto Voce with Black Platinum shelves

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  5. #13
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    Re: Vac 200iq tube rolling question

    I’ve got KT150s in my 450 Statement iQs and love them.

    I’d be interested in volunteering for the testing corps, but what’s the retail on the KR KT150s?


    Sent from my iPhone using Tapatalk
    Rockport Lyra speakers; VAC Statement 450 iQ mono amps; Kondo Kagura monos; four box CH Precision L1/X1 pre/power supply monos; CH precision P1/X1 phono/power supply; Kondo M1000 MkII pre with internal phono; Robert Koda K15 EX pre; Pacific Microsonics Model 2 DAC; TotalDac d1-12 MkII DAC; Kodo The Beat Turnatable with LT Schroder magnesium tonearm and Lyra Atlas cart; Sound Galleries EVO Music Server; Kalista Dreamplayer CD Transport; Echole Omnia LE ICs, speaker cables and power cords; 512 Engineering/Tim Marutani Balanced Transformers (30 amp for sources; 50 amp for amps); Rives designed dedicated room.

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  7. #14
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    Re: Vac 200iq tube rolling question

    Wow....KR Kt150s should be sweet. I loved the KR Kt88’s when I tried them Mike and I thought they were beautiful, with a better balance and midrange than the stock Golden Lions. I would have kept them had I not fallen in love with Tungsols Kt150s.
    To me the Kt150s were a little brash in the highs like you said Jeremy but in my system build it has been tamed with the Gigafoil and supporting tube combinations.
    I admit the midrange is not as glorious as with the Kt88’s specially when I tried the vintage Genalex Golden Monarchs or Lions. But I gotta have that bass and expansive stage that the 150s give me that they did not have.
    I hate compromising and wish there was that perfect tube. Maybe these KR Kt150s have that mojo. The search for the holy grail of sound is fun and frustrating at the same time.
    Larry


    Lumin U1
    Chord Dave Dac
    Vac Master Preamp
    Vac 200IQ Amp
    Magico S3 Mk2 in Mcast Pewter
    Denali 6000S
    Ansuz and MIT cabling
    Timbernation walnut racks

  8. #15
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    Re: Vac 200iq tube rolling question

    I have not tried other KT 88's yet... It's a new tube type for me, so I'm not up to speed on the options.

    Larry, did you find a good dealer for the KR's? did you try other KT88's? I will probably give them a try
    Jeremy

    Speakers: Magico S3 MkII
    Power Amp: VAC 200iQ (stereo)
    Source/DAC/Preamplifier: MSB Reference DAC (Femto 77 / Dual Powerbase)
    Power: Shunyata Triton V3 / Shunyata Typhon QR / AQ NRG 20 Outlet / Dedicated 20 amp circuit
    -------------
    Power Cables: AQ Dragons to components / AQ Hurricane to Typhon QR
    Speaker Cables: MIT Heritage MI 2C3D - Level 1
    Interconnects: MIT Heritage MI 2C3D - Level 1 (XLR)
    Ethernet: AQ Vodka > Aqvox SE > AQ Diamond > MSB Reference DAC
    Racks: Critical Mass Sotto Voce with Black Platinum shelves

  9. #16
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    Re: Vac 200iq tube rolling question

    Mike is a KR dealer. I usually meet him in a dark alley at the corner of international Pl. and Professional Park dr............
    Larry


    Lumin U1
    Chord Dave Dac
    Vac Master Preamp
    Vac 200IQ Amp
    Magico S3 Mk2 in Mcast Pewter
    Denali 6000S
    Ansuz and MIT cabling
    Timbernation walnut racks

  10. #17
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    Re: Vac 200iq tube rolling question

    Thanks! I just purchased a quad of the KR KT88's from Mike! Looking forward to rolling them in!
    Jeremy

    Speakers: Magico S3 MkII
    Power Amp: VAC 200iQ (stereo)
    Source/DAC/Preamplifier: MSB Reference DAC (Femto 77 / Dual Powerbase)
    Power: Shunyata Triton V3 / Shunyata Typhon QR / AQ NRG 20 Outlet / Dedicated 20 amp circuit
    -------------
    Power Cables: AQ Dragons to components / AQ Hurricane to Typhon QR
    Speaker Cables: MIT Heritage MI 2C3D - Level 1
    Interconnects: MIT Heritage MI 2C3D - Level 1 (XLR)
    Ethernet: AQ Vodka > Aqvox SE > AQ Diamond > MSB Reference DAC
    Racks: Critical Mass Sotto Voce with Black Platinum shelves

  11. #18
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    Re: Vac 200iq tube rolling question

    Quote Originally Posted by steinkrieg View Post
    Larry,

    I have also recently tried out a nos set of Sylvania 6SN7 Tall Boys, and they definitely cleared up the entire picture by a full step for me... They made the 200iQ sparkle in a new way. I'm leaving them in!

    Mike / Larry: Sign me up for the 200iQ / KR KT150 testing crew! Just tell me where to order when you want to pull the trigger. Maybe we can get a power buy going?! ;-)
    I switched to Sylvania 6SN7’s 6-9 months ago from RCA’s. Agree with the “cleared up” and “sparkle” comments.

    I keep thinking that I should do some power tube rolling. The GL’s probably are a bit “warm” and could use a bit more “clearing up”. But when I sit down to listen, I think “Why would I ever change tubes”? The 200 iQ’s with GL KT88’s just sound so “right” and thoroughly enjoyable!

    Dave
    Analog source: AMG Viella 12; Ortofon Anna cartridge
    Digital source: Totaldac d1-seven DAC, Totaldac d1-server with Gigafilter
    Pre amp: VAC Master with phono
    Phonostage: ​Constellation Andromeda
    Amps: VAC 200iQ monoblocks
    Speakers: Magico M3 with MPods
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  12. #19
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    Re: Vac 200iq tube rolling question

    The KR Kt88’s I liked a lots! I think you will be pleased Jeremy.
    Do the tall boy Sylvanias sound different than the short ones?
    i have a pair of 6SN7S GT Sylvanias but not tall boys. They sound very nice and are a little more transparent or airy than the RCA’s.
    Larry


    Lumin U1
    Chord Dave Dac
    Vac Master Preamp
    Vac 200IQ Amp
    Magico S3 Mk2 in Mcast Pewter
    Denali 6000S
    Ansuz and MIT cabling
    Timbernation walnut racks

  13. #20
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    Re: Vac 200iq tube rolling question

    Lots of folks do seem to like the tall boys for various reasons. It's all so system and ear dependent that I have trouble making grand statements about any tubes. However, the tall boys that I did get do have that airy transparency that you mention. Here is a great link to info about 6SN7's... also check out the videos. Lots of info here on these tubes and many other types! I got my tall boys from Brent as well, but he is currently out of stock.

    http://www.audiotubes.com/6sn7.htm
    Jeremy

    Speakers: Magico S3 MkII
    Power Amp: VAC 200iQ (stereo)
    Source/DAC/Preamplifier: MSB Reference DAC (Femto 77 / Dual Powerbase)
    Power: Shunyata Triton V3 / Shunyata Typhon QR / AQ NRG 20 Outlet / Dedicated 20 amp circuit
    -------------
    Power Cables: AQ Dragons to components / AQ Hurricane to Typhon QR
    Speaker Cables: MIT Heritage MI 2C3D - Level 1
    Interconnects: MIT Heritage MI 2C3D - Level 1 (XLR)
    Ethernet: AQ Vodka > Aqvox SE > AQ Diamond > MSB Reference DAC
    Racks: Critical Mass Sotto Voce with Black Platinum shelves

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