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Thread: Pacific dac: Lampizator's new top of the line dac

  1. #291
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    Quote Originally Posted by astrostar59 View Post
    I was not aware of that, thanks. I thought the GG was good but not maybe top tier IMO. Maybe this is why? I dunno, I had been in the non upsampling, no filter, no logic or messing with the data camp for some years. It just sounds better to my ears. DS conversion has never convinced me, no matter which DAC I have heard or demoed to date, top tier or middle of the road, it just isn't real sounding to me.

    So can I ask, does the current GG V2 upsample and use a digital filter on either or both the discrete board or the chip version?

    Does Lampi use I/V transformers between the digital and line stage, or resistors or pop amps?

    Do they use output transformers at the output to help drive the next stage and keep the output impedance down, or do they put a resistor on the end?

    Any info would be great guys. I probably won't be buying the GG now, but I am curious about the design of the conversion Luktaz uses. We know about the tubes in the PS and gain stages, maybe less about the rest.

    Possibly the new chip ion the Pacific will do logic if it has to handle PCM and DSD auto switching?

    I don't think anyone has those answers except Lukasz. I would email him directly and see how much info he wants to share. Don't think there was ever a "pop" amp....he he....in any of his products. Many delta sigma dacs have voltage out and don't need IV conversion.

  2. #292
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    I suspect most Pacific DAC users have vow of silence enforced on them. LOL..it's very quiet out there though I believe, there must be some lucky guys out there enjoying the Pacific right now.

    Quote Originally Posted by Ric Schultz View Post
    I don't think anyone has those answers except Lukasz. I would email him directly and see how much info he wants to share. Don't think there was ever a "pop" amp....he he....in any of his products. Many delta sigma dacs have voltage out and don't need IV conversion.

  3. #293
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    I am waiting for him to come out with more valves rather than the one set so that we can experiment.
    Audition recordings: Zero Distortion Link; Reference Components: Zero Distortion Link; Own: Lampi GG One-day-to-get: Apogee Scintilla, or a horn (with Tenor 75 OTL ), Preamp to be fit in to suit the gain and drive the power amp. Analog: TBD

  4. #294
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    Quote Originally Posted by ferrox View Post
    I suspect most Pacific DAC users have vow of silence enforced on them. LOL..it's very quiet out there though I believe, there must be some lucky guys out there enjoying the Pacific right now.
    Right you are , awfully quite !
    "It is music coming from another world, it is coming from eternity." ... HVK

  5. #295
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    Every new model of his has gone through iterations initially before settling down. So, I think the way it was here in the UK with one set of valves fixed, it just could not be judged. So it went back and will come over to UK at some point more tweaked, and with multiple valve sets. Then we will be able to hear properly. Till then it's just wait. He also got more focused of this to his ADC in the middle
    Audition recordings: Zero Distortion Link; Reference Components: Zero Distortion Link; Own: Lampi GG One-day-to-get: Apogee Scintilla, or a horn (with Tenor 75 OTL ), Preamp to be fit in to suit the gain and drive the power amp. Analog: TBD

  6. #296
    Quote Originally Posted by bonzo75 View Post
    Every new model of his has gone through iterations initially before settling down. So, I think the way it was here in the UK with one set of valves fixed, it just could not be judged. So it went back and will come over to UK at some point more tweaked, and with multiple valve sets. Then we will be able to hear properly. Till then it's just wait. He also got more focused of this to his ADC in the middle
    Watching Lukatz presentation video, it sounded like he had already found / had made the ultimate valve for the Pacific, and that was already chosen. Or is that not the case? There must be a way at some point to design in both the DAC, PS and line stages with a certain valve type in mind, to get what Lukatz regards as his ultimate sound. Then owners can have the option to tube roll if they want. That seems to me to make sense. I am not an engineer, but a circuit that is designed around a certain valve surely will be optimised to get the most out of it, after all, the designer knows more about that than a user IMO.
    Mac Mini Server with 12V DC Upton Audio MMK Mod and LPS feed , SSD and 16 GIG RAM, Audirvana V3 & Tital | Audio Note UK DAC 5 Special V2 (with Duelund Copper caps on line stage) | Passive pre-amplifier | Plinius SA-103 150W Class A / AB switchable | Zingali Client Name EVO 1.2 Horn Hybrids | Velodyne DD10 Sub | DIY KGSShv Carbon Electrostatic Headphone Amplifier | Stax SR-009 2016 | PS Audio P10 Power Regenerator | Dedicated Mains | AMR DP-777 DAC & Stax SR007A 2015 for second HP system.

  7. #297
    The new tubes have just been built and have not even been tested yet. In any case, the Pac will have a switch for 5 different tube settings that will optimize the setting to each class of tube. These will be the same DHTs as before, but will be the mesh/zirconium coated variants.

    That demo pac was optimized for 300b only, but not the others...which will be selectable.
    Last edited by wisnon; 01-04-2018 at 07:11 AM.

  8. #298
    Thanks for the interesting info, Norman

  9. #299
    De rien.

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