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Thread: Anyone have a Valab LCR Phono Stage ?

  1. #41
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 9,826
    I'm Oliver.

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    Quote Originally Posted by Mr. C View Post
    Whether or not you are a measurement guy, that is fundamental flaw of the first order, not being able to replicate a basic waveform is like saying naim is capable of quality music reproduction
    Haha, I've never heard any Naim gear so can't comment but I totally agree about the waveform.
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 MK6 tonearm > Ortofon Kontrapunkt b > SIMaudio Moon LP5.3RS
    Digital: Orchard Audio PecanPi with JRiver
    Preamplifier: Neurochrome Differential Preamp
    Amplification: Neurochrome Modulus 686
    Speakers: Mordaunt Short Performance 880
    Cables: SPOTFIRE Speaker Cable & SPOTFIRE IC Cables & SPOTFIRE Tonearm cable

    Price List For SPOTFIRE Cables here:https://bit.ly/2Uxiv3j

    Alternative reading: http://www.audioaddictsforum.com

  2. #42
    Join Date: Jan 2008

    Location: Gerrards Cross

    Posts: 2,400
    I'm Tony.

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    Hi Oli

    The last time I saw a waveform similar to that is was pretending to be a broken output FET.

    This is very basic principles here, imagine trying to reach the far side on the moon on a 50cc Vespa, never mid breaking free from the Earth's atmosphere just trying to hot 35mph would be a bloody miracle!
    Coherent Systems
    Real high end sound with musicality not hifi

  3. #43
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 9,826
    I'm Oliver.

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    Quote Originally Posted by Mr. C View Post
    Hi Oli

    The last time I saw a waveform similar to that is was pretending to be a broken output FET.

    This is very basic principles here, imagine trying to reach the far side on the moon on a 50cc Vespa, never mid breaking free from the Earth's atmosphere just trying to hot 35mph would be a bloody miracle!
    Lol, moped to the moon and back! Coukb be a great book title
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 MK6 tonearm > Ortofon Kontrapunkt b > SIMaudio Moon LP5.3RS
    Digital: Orchard Audio PecanPi with JRiver
    Preamplifier: Neurochrome Differential Preamp
    Amplification: Neurochrome Modulus 686
    Speakers: Mordaunt Short Performance 880
    Cables: SPOTFIRE Speaker Cable & SPOTFIRE IC Cables & SPOTFIRE Tonearm cable

    Price List For SPOTFIRE Cables here:https://bit.ly/2Uxiv3j

    Alternative reading: http://www.audioaddictsforum.com

  4. #44
    Join Date: Jun 2018

    Location: Mildenhall, Suffolk

    Posts: 305
    I'm John.

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    If a Moped constantly did 55 mph over 24 hours, it would get to the Moon in a 180 Days.
    Obviously it would need a little assistance, like maybe a road to make this a reality.

  5. #45
    Join Date: Mar 2016

    Location: Barnet, london UK

    Posts: 1,731
    I'm Adam.

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    "lack of passion is fatal"


    Vinyl: Thorens TD-124mk2 / Tenuto gun metal mat / SME-3012r ikeda rewire / SME 3009 unimproved / audio-technica ATP-12T - phonomac modified / STEREO: Jan Allaerts MC1 Boron / Shure M3D / Ortofon SPU A95 / Cartridge Man Music Master / Shure - SC35C (US) / SAEC C3 MC MONO: Miyajima Zero B 0.7mil mono / Miyajima Premium 1.0 / Amps & SUTs: Radford STA25 mk3 / AD Audio 'Satchmo' pre & phono / Hashimoto HM-7 SUT / ETR-MONO SUT Digital: SW1X Audio Design DAC 1 signature / Roon / Tidal Speakers: Tannoy 12" MGs' in RFC custom 'Rutland' Cabinets with RFC crossovers / Tannoy ST-100 Super Tweeters Cables: Duelund DCA16GA tinned copper / Kimber 12TC / SW1X Audio Design USB-SPdif / Duelund DCA20GA interconnects / SW1X Audio SPDIF Aero 6 / Mains Power Conditioner / Box Furniture rack / Audiodesk Systeme Vinyl Cleaner / a very beautiful & understanding Wife!

  6. #46
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 9,826
    I'm Oliver.

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    Quote Originally Posted by JohnG View Post
    If a Moped constantly did 55 mph over 24 hours, it would get to the Moon in a 180 Days.
    Obviously it would need a little assistance, like maybe a road to make this a reality.
    Lol, it's possible at least
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 MK6 tonearm > Ortofon Kontrapunkt b > SIMaudio Moon LP5.3RS
    Digital: Orchard Audio PecanPi with JRiver
    Preamplifier: Neurochrome Differential Preamp
    Amplification: Neurochrome Modulus 686
    Speakers: Mordaunt Short Performance 880
    Cables: SPOTFIRE Speaker Cable & SPOTFIRE IC Cables & SPOTFIRE Tonearm cable

    Price List For SPOTFIRE Cables here:https://bit.ly/2Uxiv3j

    Alternative reading: http://www.audioaddictsforum.com

  7. #47
    Join Date: Jan 2008

    Location: Gerrards Cross

    Posts: 2,400
    I'm Tony.

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    I could point out save is a vucuum and no air s n combustion but sorry off topic

    Suspect Aan has managed to rectify to basic problem quite easily
    Coherent Systems
    Real high end sound with musicality not hifi

  8. #48
    Join Date: Aug 2011

    Location: Midlands

    Posts: 194
    I'm Wayne.

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    Sooo, back to the Valab

    Its been left on for a week and had probably 15-20 hrs of records playing. I've spent a bit of time fiddling with the settings and so far the Fidelity Research FR-1 Mk3 that's currently hanging off the Bergmann seems to prefer 200 ohms and a gain of 67 db. Quite pleased with it tbh, regardless of the money it sounds pretty good so far. Very very quiet.

    Next step is to experiment a bit more with different gain settings, and then have a go with the MC head amp set on zero gain and the Valab at MM output. There's 4 impedance settings on the H-Z1 to play with inc 470 ohms to compare.

  9. #49
    Join Date: Mar 2016

    Location: Barnet, london UK

    Posts: 1,731
    I'm Adam.

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    Quote Originally Posted by crimsondonkey View Post
    Sooo, back to the Valab

    Its been left on for a week and had probably 15-20 hrs of records playing. I've spent a bit of time fiddling with the settings and so far the Fidelity Research FR-1 Mk3 that's currently hanging off the Bergmann seems to prefer 200 ohms and a gain of 67 db. Quite pleased with it tbh, regardless of the money it sounds pretty good so far. Very very quiet.

    Next step is to experiment a bit more with different gain settings, and then have a go with the MC head amp set on zero gain and the Valab at MM output. There's 4 impedance settings on the H-Z1 to play with inc 470 ohms to compare.
    Thanks for the update Wayne, good to know it's hitting the spot.
    The MM side of things interests me. I would use the MM with external SUTs.
    "lack of passion is fatal"


    Vinyl: Thorens TD-124mk2 / Tenuto gun metal mat / SME-3012r ikeda rewire / SME 3009 unimproved / audio-technica ATP-12T - phonomac modified / STEREO: Jan Allaerts MC1 Boron / Shure M3D / Ortofon SPU A95 / Cartridge Man Music Master / Shure - SC35C (US) / SAEC C3 MC MONO: Miyajima Zero B 0.7mil mono / Miyajima Premium 1.0 / Amps & SUTs: Radford STA25 mk3 / AD Audio 'Satchmo' pre & phono / Hashimoto HM-7 SUT / ETR-MONO SUT Digital: SW1X Audio Design DAC 1 signature / Roon / Tidal Speakers: Tannoy 12" MGs' in RFC custom 'Rutland' Cabinets with RFC crossovers / Tannoy ST-100 Super Tweeters Cables: Duelund DCA16GA tinned copper / Kimber 12TC / SW1X Audio Design USB-SPdif / Duelund DCA20GA interconnects / SW1X Audio SPDIF Aero 6 / Mains Power Conditioner / Box Furniture rack / Audiodesk Systeme Vinyl Cleaner / a very beautiful & understanding Wife!

  10. #50
    Join Date: Jan 2008

    Location: South West England

    Posts: 959
    I'm Guy.

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    Quote Originally Posted by Bigman80 View Post
    That's supposed to be square. Think it speaks for itself lol
    If you put a square wave through an RIAA network surely that is what you'd expect?

    Otherwise, what exactly do you think it should be doing with the high frequency component of the waveform? If it let it through unaltered it wouldn't be much use in eq'ing the output from a cartridge playing a record.

    Here's an Aurorasound Vida reproducing a 1 KHz sine wave.



    and here is the same phono stage applying RIAA correction to a 1 KHz square wave



    That's what it's supposed to look like. You need to remember what a square wave actually is.

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