Pass Labs X0.2 still has issues....

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Comments

  • nooshinjohnnooshinjohn Posts: 18,947
    I have a thread there as well H9. Nelson has responded already and said he would ask Wayne to chime in as well.
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with Pass Labs Xono Phono Preamp, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Pioneer Elite SC-65, Oppo UDP-205 4K Blu-ray player, Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds



    Saying that it's "too hard" to pursue your dreams is no different than admitting to yourself that you are too lazy to achieve them.

  • pitdogg2pitdogg2 Posts: 12,089
    Nothing to lose there Brock certainly worth a shot
  • nooshinjohnnooshinjohn Posts: 18,947
    Kent @ Pass just told me to short the center pin and the shield together for all unused RCA jacks using tin foil.... Seriously? That's the fix for this? I have shields on all jacks and the jumper pins in place for all unused XLR's. I'm sorry, but at 15 feet off, with the volume off, and all setting configured as directed, I should not hear a thing from a preamp of this caliber.


    He then told me that they were noisy like this from day one, and again, I just cannot accept that Wayne and Nelson would have signed off on this. The noise can even be heard through the music as the volume goes up. There is a problem somewhere for certain.
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with Pass Labs Xono Phono Preamp, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Pioneer Elite SC-65, Oppo UDP-205 4K Blu-ray player, Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds



    Saying that it's "too hard" to pursue your dreams is no different than admitting to yourself that you are too lazy to achieve them.

  • Tony MTony M Posts: 6,840
    Aluminum foil??????

    Come-on-man! :s WTH.

    Nelson Pass couldn't possibly be OK with this. :#

    Hiss in the music from the designs final approval? NO WAY! >:)
    Most people just listen to music and watch movies. I EXPERIENCE them.
  • txcoastal1txcoastal1 Posts: 10,154
    Kent @ Pass just told me to short the center pin and the shield together for all unused RCA jacks using tin foil.... Seriously? That's the fix for this? I have shields on all jacks and the jumper pins in place for all unused XLR's. I'm sorry, but at 15 feet off, with the volume off, and all setting configured as directed, I should not hear a thing from a preamp of this caliber.


    He then told me that they were noisy like this from day one, and again, I just cannot accept that Wayne and Nelson would have signed off on this. The noise can even be heard through the music as the volume goes up. There is a problem somewhere for certain.

    When I had the XA30.5 amp when using single ended...per the manual

    The amplifier may be driven single-end or balanced, your choice.
    Single-ended input will always occur through the RCA connector and
    balanced input will always occur through the XLR connector.
    Again, if you drive the amplifier single-ended then leave the supplied
    jumpers in place between pins 1 & 3 on the input XLR.
    On the XLR connector pin 1 is ground, pin two is positive input and
    pin 3 is inverted (negative) input. Pin numbers are marked on the
    XA30.5 Owner’s Manual 8
    XLR. If you re-install the jumper incorrectly or leave it lying about,
    the amplifier will not work properly, and you will be able to tell.
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC
  • txcoastal1txcoastal1 Posts: 10,154
    I had misplaced the jumpers at one time and used a piece of 12awg solid from electrical wire, stripped all the insulation and bent it to fit the XLR pin out
    2-channel: Modwright KWI-200 Integrated, Dynaudio C1-II Signatures
    Desktop rig: LSi7, Polk 110sub, Dayens Ampino amp, W4S DAC/pre, Sonos, JRiver
    Gear on standby: Melody 101 tube pre, Unison Research Simply Italy Integrated
    Gone to new homes: (Matt Polk's)Threshold Stasis SA12e monoblocks, Pass XA30.5 amp, Usher MD2 speakers, Dynaudio C4 platinum speakers, Modwright LS100 (voltz), Simaudio 780D DAC
  • nooshinjohnnooshinjohn Posts: 18,947
    Still listening to it. It exposes things I have never heard before. What has always sounded like a single cymbal tap, has been exposed to be two, three or even four strikes. The same thing for drums and other percussion instruments. I could always hear a vibrato in a voice, but now I can hear the texture of that vibrato as well. So much more detail than before. I really want this solved because for me, this is an end-game piece. The law of diminishing returns stops here. While I am certain I could get more, the gains made from here come at a cost I am unwilling to pursue.
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with Pass Labs Xono Phono Preamp, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Pioneer Elite SC-65, Oppo UDP-205 4K Blu-ray player, Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds



    Saying that it's "too hard" to pursue your dreams is no different than admitting to yourself that you are too lazy to achieve them.

  • verbverb Posts: 4,472
    Sorry to hear about your plight John. I'll be following this thread as it has the makings of some good drama! :smile:
    Basement: Polk SDA SRS, Rega RP1 TT, VTL 2.5 Preamplifier, Enlightened Audio Designs CD Transport, Northstar Designs DAC, Conrad Johnson MF2300A Amp, Furman 15PFi Power Conditioner, Wireworld Oasis 8 RCA IC's, MIT Terminator2 Bi-Wire speaker cables
    Office: PC, Marantz CD-1 transport, Marantz AMP-1, Acoustic Technologies Classic Speakers, SVS SB12 Plus Subwoofer, MIT AVt2 speaker cables, IFI Purifier2, AQ Cinnamon USB cable
    Spare Room: Dayens Ampino Integrated, Tjoeb 99 tube CD player (modified Marantz CD-38), Project BoxE Bluetooth Streamer, Polk TSi200's
    Living Room: Pioneer SX-N30 Network Receiver, Pioneer PD10AE CD Player, Furman M8-LX Power Conditioner, Polk RT265 In Wall Speakers, Polk DSW Pro 660wi Subwoofer
  • mhardy6647mhardy6647 Posts: 20,001
    line level soiled state stuff should be hiss free. Heck, they could even do that in the seventies. :|

    Something's not right, I'd opine.
  • nooshinjohnnooshinjohn Posts: 18,947
    They are sending me some shorting pins for testing purposes. I should have them Monday or Tuesday
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with Pass Labs Xono Phono Preamp, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Pioneer Elite SC-65, Oppo UDP-205 4K Blu-ray player, Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds



    Saying that it's "too hard" to pursue your dreams is no different than admitting to yourself that you are too lazy to achieve them.

  • mhardy6647mhardy6647 Posts: 20,001
    edited January 11
    cool enuff. They have access to higher, audiophile grades of aluminum foil. ;)

  • DSkipDSkip Posts: 15,249
    For what it's worth I have had the Evolution 845 paired with an XP20 with superb results and no hiss on 94 db speakers.

    Another note is that I got a Rogue amp in on trade and it hummed like no other in my system. Dennis borrowed it from me with the intent to buy and in his system there is no hum I could pick up on. On the flip side, he brought his Dared SL2000 over a year or two ago because it was producing an audible hum in his system. None whatasoever in mine...

    Gremlins are nasty.
    audiothesis.com/

    Speakers: Harbeth: 30.2, SHL5+; Usher: Be-10, T-515; Rosso Fiorentino: Elba, Pienza, Certaldo, Fiesole, Volterra; Polk: T50, Signature S15, RTA 15tl, RTi12; Sonner Audio Allegro Unum, Legato Unum, Legato Semis, Legato Duo; Emerald Physics CS-2.8; Klipsch KLF-20
    Preamps: Shuguang S200MK, Dayens Ampino, Parasound P5
    Amps: Shuguang S845MK, Dayens Ampino Monoblocks, Parasound A23
    Integrateds: Triode Corporation TRV-88SER, MastersounD: BoX, Dueventi, Compact 845, Evolution 845; North Star Design Blue Diamond
    Sources: AURALiC Aries, Denon HEOS Link, North Star Design: Magnifico, Supremo, Incanto, Intenso, Venti
    Cabling: Wireworld
    TV: Sony XBR-75X940C
  • DarqueKnightDarqueKnight Posts: 6,379
    I have owned the X1 and X0.2 and both were dead quiet. Pass Labs is fanatical about quiet electronic design.
    "So hot it burns Mice!"~DK
    "Polk SDA-SRSs are hopelessly out of date both sonically and technologically... I see no value whatsoever in older SDA speakers."~Audio Asylum Member
    "Knowledge, without understanding, is a path to failure."~DK
    "Those who irrationally rail against something or someone that is no threat to them, actually desire (or desire to be like) the thing or person they are railing against."~DK
  • nooshinjohnnooshinjohn Posts: 18,947
    I have owned the X1 and X0.2 and both were dead quiet. Pass Labs is fanatical about quiet electronic design.

    Thanks for your response. Have you any ideas as to what may be causing this, or what the solution might be?
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with Pass Labs Xono Phono Preamp, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Pioneer Elite SC-65, Oppo UDP-205 4K Blu-ray player, Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds



    Saying that it's "too hard" to pursue your dreams is no different than admitting to yourself that you are too lazy to achieve them.

  • nooshinjohnnooshinjohn Posts: 18,947
    The X0.2 is the most detailed pre I have yet heard on my journey. It is able to resolve three distinct and unique female voices, giving each their own space within the soundstage and keeping them separate through the entire track. The album being played is "My Dear Companion" featuring Dolly Parton, Linda Ronstadt, and Emylou Harris.

    The soundstage is breathtaking, with each unique voice dancing within that space. Each has it's own space to bloom and is not smeared by the other or by the instruments within.

    This needs to be fixed because I am hooked now on the imaging and detail that smokes the X1. Those who said the differences were subtle need a hearing check.
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with Pass Labs Xono Phono Preamp, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Pioneer Elite SC-65, Oppo UDP-205 4K Blu-ray player, Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds



    Saying that it's "too hard" to pursue your dreams is no different than admitting to yourself that you are too lazy to achieve them.

  • nooshinjohnnooshinjohn Posts: 18,947
    Wayne has commented that the X0.2 should be dead quiet at 1 foot from the speaker, and there is SOMETHING out of sorts. He will be looking at the tests that were done on Monday and getting in touch with me. THAT is what customer service is supposed to look like. B)
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with Pass Labs Xono Phono Preamp, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Pioneer Elite SC-65, Oppo UDP-205 4K Blu-ray player, Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds



    Saying that it's "too hard" to pursue your dreams is no different than admitting to yourself that you are too lazy to achieve them.

  • pitdogg2pitdogg2 Posts: 12,089
    Good to hear
  • DarqueKnightDarqueKnight Posts: 6,379
    I have owned the X1 and X0.2 and both were dead quiet. Pass Labs is fanatical about quiet electronic design.

    Thanks for your response. Have you any ideas as to what may be causing this, or what the solution might be?

    The first thing that comes to mind, like others have said, is some incompatibility between the X0.2 and the power amp.

    Prior to your issues, I have never read about a noise issue with Pass Preamps.
    "So hot it burns Mice!"~DK
    "Polk SDA-SRSs are hopelessly out of date both sonically and technologically... I see no value whatsoever in older SDA speakers."~Audio Asylum Member
    "Knowledge, without understanding, is a path to failure."~DK
    "Those who irrationally rail against something or someone that is no threat to them, actually desire (or desire to be like) the thing or person they are railing against."~DK
  • nooshinjohnnooshinjohn Posts: 18,947
    edited January 12
    Can’t sleep.... another thought popped into my head. My amps are biased up from stock to get a bit more power from them. At the time mine came to life, they were based on the 305 watt version of the amp. Mine run at 385wpc. Can that bias setting be the reason I am having this problem?
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with Pass Labs Xono Phono Preamp, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Pioneer Elite SC-65, Oppo UDP-205 4K Blu-ray player, Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds



    Saying that it's "too hard" to pursue your dreams is no different than admitting to yourself that you are too lazy to achieve them.

  • mhardy6647mhardy6647 Posts: 20,001
    edited January 12
    I wouldn't think so. I can't imagine how that would have any impact on the input characteristics of the amp.

    The output's only juiced by 1 dB. Did they check the distortion and the other operating points of the output tubes when they juiced the amp? One would presume so.


  • nooshinjohnnooshinjohn Posts: 18,947
    Everything was thoroughly checked... it was just a thought.
    The Gear... Carver "Statement" Mono-blocks, TriangleArt Reference SE with Pass Labs Xono Phono Preamp, Walker Precision Motor Drive, ClearAudio Stradivari v2 cartridge and Origin Conquerer Mk3c tonearm, Polk Audio "Signature" Reference Series 1.2TL with complete mods, Pass Labs X1 preamplifier Signed by Poppa himself, PS Audio PerfectWave DAC MkII, Pioneer Elite SC-65, Oppo UDP-205 4K Blu-ray player, Sony XBR70x850B 4k, Polk audio AB700/800 "in-wall" surrounds



    Saying that it's "too hard" to pursue your dreams is no different than admitting to yourself that you are too lazy to achieve them.

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