VAC Signature iQ200 VAC Signature iQ200 - Page 17
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  1. #161
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    Re: VAC Signature iQ200

    My VAC Renaissance phono stage uses a fuse holder with a spare, so I'd expect the same on 200iQ's. I actually had to use the spare when a fuse blew after 7 months, and then blew again a few months later (only an issue on power-up). After consulting with Kevin, I bought replacement fuses at a higher rating - 3A vs. 2.5A. It's been flawless ever since. I reckon a hot voltage from the outlets around here (~ 125V) might have something to do with it.

    I'm at least somewhat interested in the Synergistic Research fuses, but haven't gone for any yet.

  2. #162
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    Jun 2019
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    Re: VAC Signature iQ200

    In the meantime I received a response from Kevin, wherein he indicates that it can make a difference, but he also attached a picture of a fuse that was still conducting current whereas it should have not. It melted, but was still conducting.

    It was not clear which brand of fuse it was, but I decided to keep things as they currently are.
    Jan

    Dedicated room: Confidence Mansion
    Electronics: Trinnov Altitude32 | VAC Signature 200 IQ mono’s | Parasound Halo JC-1’s + A51 | Synology DS918+/DX517 (48TB) | Oppo BDP-105D / UDP-203 CM Stufe2
    Speakers: Von Schweikert VR10-MKII system | Dynaudio Confidence C4 | Velodyne DD-18
    Projection: JVC DLA-RS55 | Stewart LX123HST13
    Various: Artesania Exoteryc 3L + Aire racks | Schnerzinger Emi + Giga Piccolo A3 | PS Audio Stellar Power Plant 3 | iPad Pro 12.9” (2018) | Roon
    Cables: AudioQuest Huricane EC | Nordost Frey speakercable | AudioQuest Diamond RJ/E | AudioQuest Diamond HDMI


  3. #163
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    Dec 2017
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    Re: VAC Signature iQ200

    They are going crazy over the VAC Statements on WTB. Some people love them. Some hate the mere concept of tubes. Has to be SS. I have been using a SET 845 amp for a while now. I miss some of what the KT PP sound presents. The SET is better with giving a true picture of instruments and vocals in the midband. It is more realistic. The KT PP gives better bass. Its complete and hits you like a kick drum would. Not just a poof and tone. I think the top end shimmer of say rivets in a crash are more pronounced in my PP amps. Not fully sure. I would have to reinsert them to tell.

    VAC has always been interesting to me. I have a demo Phi 160 for a short while. I though it to be a bit dry and unemotional. No obvious flaws. But it did not take me anywhere. I may have to listen to a signature one day.
    First Sound Mark3SI preamp, Altec Lansing 1570B modded by Transition Audio Design and myself, Mojo Audio CAT Server running Win Server 2016 AO HQ and Roon, Mojo Audio Mystic 3 DAC, Linear Solution Ethernet Switch, Custom TT with Vertere Arm, Denon 103R Midas with sapphire cantilever line contact diamond, Allnic H1201 phono pre, Pure Audio Project Trio 10 with performance Solen air core chokes and Mundord Supreme oil caps, Power via 10 awg OFC cord from panel to custom distribution strip, Inakustik speaker and interconnect cables, Genesis Interconnect.

  4. #164
    Junior Member
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    May 2015
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    Re: VAC Signature iQ200

    Hope everything one is staying safe and healthy! I've few questions. It'd be really helpful if anyone can provide some insight.

    - How hot the 200IQ gets? I live in an smallish apartment in NYC. So excess heat is an issue in the summer. I'm planning to use 170IQ but can infer from 200IQ feedback here.
    - How much more power is achieved by swapping out the KT88 with KT120 or KT150?
    - My speaker is 84 dB Joseph Audio Perspective 2. It has a very easy impedance load that stays between 6-8 ohm. Any idea if VAC 170IQ is adequate for the Joseph? I do not need to play loud, 85-90 db loud MAX but mostly below 80/85 db. But I'm not sure if a low sensitive speaker still needs power to come alive even if you are not intending to play loud.

  5. #165
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    Apr 2013
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    Re: VAC Signature iQ200

    Quote Originally Posted by Radiohead View Post
    Hope everything one is staying safe and healthy! I've few questions. It'd be really helpful if anyone can provide some insight.

    - How hot the 200IQ gets? I live in an smallish apartment in NYC. So excess heat is an issue in the summer. I'm planning to use 170IQ but can infer from 200IQ feedback here.
    - How much more power is achieved by swapping out the KT88 with KT120 or KT150?
    - My speaker is 86 dB Joseph Audio Perspective 2. It has a very easy impedance load that stays between 6-8 ohm. Any idea if VAC 170IQ is adequate for the Joseph? I do not need to play loud, 85-90 db loud MAX but mostly below 80/85 db. But I'm not sure if a low sensitive speaker still needs power to come alive even if you are not intending to play loud.
    1. It really isn’t too bad for heat - especially just one. You should be fine.
    2. Really no more power by swapping tubes.
    3. You shouldn’t have a challenge driving them with the 170 or 200.
    My Systems: http://www.audioshark.org/showthread...481#post158481

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  6. Thanks Radiohead thanked for this post
  7. #166
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    Jun 2016
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    Re: VAC Signature iQ200

    My IQ200 is in an east facing 11x14 room here in St Petersburg,Florida. It does get warmish during summer months but my overhead fan keeps me cool enough to not notice much. It’s my favorite piece of equipment and it’s a level above the excellent iq170 that I also auditioned which is the piece that made me fall in love with Vac tube gear. I also auditioned an Arc combo which to my ears didn’t have as relaxed of a sound as the iq170. The Mágicos I drive are also 86db and I never have had a ran out of juice problem.
    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. #167
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    Re: VAC Signature iQ200

    Sorry double post
    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

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