LH Labs Pulse X Infinity technical measurements - DAC only

Discussion in 'Source Measurements' started by atomicbob, Oct 12, 2015.

  1. zerodeefex

    zerodeefex Grumpiest admin

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    I am unsure of what you are listening to. It's the second best all in one I've heard with only the Vi DAC edging it out. It literally sounds like a Geek Out V2 with a blacker background and better control. The better power supply really makes a difference.
     
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  2. jexby

    jexby Posole Prince

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    didn't want to type almost the exact reply due to
    a) not hearing a Pulse Infinity since last CCCP meet in Boulder
    and
    b) only hearing VI DAC with HE1K at RMAF a couple months ago.

    glad my hopes true.
     
  3. gbeast

    gbeast Mighty Moral Power Ranger

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    I have decided to keep it and get a trafomatic head 2 amp .

    The balanced out was making my t50 mod sound thin and lacked weight. It was that way with the SE for my pioneer hrm 7 as well. However, the single end works extremely well with the LCD2.1

    I was so bummed on the Omni pairing that I was ready to throw the baby out with the bath water. However I have since reconsidered.
     
  4. fraggler

    fraggler A Happy & Busy Life

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    Something that just crossed my mind is that you could actually have a faulty one if it really sounds that bad to you. My Xfi had some sort of ground issue with the board itself, making everything sound distant and hollow. It took LHLabs a few weeks, but they replaced the board entirely, and it sounded quite a bit better. I only did my listening through the HD650, so it could just not pair well with your other headphones.
     
  5. zerodeefex

    zerodeefex Grumpiest admin

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    with the Vi DAC I'm debating if I still need the pulse infinity + LPS4. The units sound really really close with maybe a slight edge due to higher voltage supply but I am having a hard time comparing with the slants and HD600. I might try to test with the HD800 and UERM next.

    I suspect I might be ditching the pulse infinity stack since the Vi DAC is a single box solution. It looks a bit manly but the look is definitely growing on me.
     
  6. Cos

    Cos Acquaintance

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    I have the Pulse infinity and am scratching my head about the single ended output. Initially I thought it was acceptable, but meh compared with the balanced output. I did not think too much about it as I did not really have what to compare to until recently. I plugged Vali 1 via the RCA connectors on the back and the Sennheiser HD 650 sounds almost as good as the balanced output.

    Not sure how to describe it but the LH single ended sound is smeared and distant compared to the balanced and Vali. No real correction applied, just subjectively tried to have all at the same level of sound pressure.

    Also wondering if we should make a thread for the LH Pulse under the discussion forum and migrate part of this discussion there as the last few pages are not particularly concerned with the measurements - maybe zerodeefex can intercede with the powers?
     
  7. zerodeefex

    zerodeefex Grumpiest admin

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    We should do a pulse/Vi family discussion. The HP SE outs are like the geek out v2 SE out: not anywhere close to balanced.
     
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  8. uncola

    uncola Friend

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    I'm loving my vi dac which is basically a pulse x infinity + lps. Only use the balanced out with he560 and xlr outs with speaker amp. I know what you mean about the chassis being manly, zerodeefex. It's my favorite audio chassis I've owned. It makes a statement. "Listen, you fuckers, you screwheads. Here is a DAC who would not take it anymore. A DAC who stood up against the scum, the cunts, the dogs, the filth, the shit. Here is a DAC who stood up. "
     
  9. rdsu

    rdsu Rando

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    Any comparation between Pulse Infinity and Schiit Yggdrasil?
     
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  10. uncola

    uncola Friend

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    vi dac screen blank when I turned it on today, no sound :( asking lh labs what to try. also the iec socket slid 1/2" out of the vi dac chassis when I pulled the power cord to see if that would help. I pushed it back in easily but it's not a good thing :/
    edit: lh labs sent me a firmware update that fixed it. I think it might have been stuck in standby mode, causing the screen to be blank and non responsive even when power cycled due to remembering being in that mode
     
    Last edited: Jan 19, 2016
  11. zerodeefex

    zerodeefex Grumpiest admin

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    Get an RMA ASAP
     

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