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Thread: WTD maybe: best of all worlds pre amp

  1. #11
    Join Date: Nov 2018

    Location: Grimsby

    Posts: 228
    I'm David.

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    That's hifi for yer.

  2. #12
    Join Date: Aug 2009

    Location: Staffordshire, England

    Posts: 26,359
    I'm Martin.

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    Quote Originally Posted by Mr.Ian View Post
    I know I know, its not a usual occurrence, direct to my balanced input power amps its brilliant but thats not how i am using it now.

    It isnt what comes before it but rather what comes after it, a pro audio equaliser with balanced 10k inputs. Artificially increasing the input impedance to get the bass back cost 10db and splitting the single ended signal to balanced cost another 12db ? the power amps take a balanced input so no conversion gain. The power amps are looking for 2.5 volts.

    I did try to find a dspeaker dual core and see how that fared, i had one before but sold it get rid of the ADC/DAC conversion. Using it fully digital was a pain. Have ads running for one on some forums but nothing yet
    I'd rethink the whole system.

    Or just stop using balanced connection?

    If you decide to sell your Black Tulip let me know.
    Current Lash Up:

    *Sony SCD XB790QS* Nelson Pass DCB1 / Krell KSA100 mkII * JM Lab Electra 926 *


    'You fool! To think that your ape-brain could contain the full knowledge of the Krell!'

  3. #13
    Join Date: Sep 2013

    Location: North Island New Zealand

    Posts: 1,403
    I'm Chris.

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    If you view your source equipment as having the audio you actually need, then anything in -between
    to your power amp that changes that audio is detracting. Your source equipment should have
    sufficient ability to not be upset by an attenuator.

    I would deal with attenuation firstly - to get the best possible transfer, and I think you know
    the direction I would advise.

    With a good basis of attenuation be it balanced or unbalanced you then can properly assess your requirements.
    I would also study the schematics for your power amps to see if sensitivity can be improved

  4. #14
    Join Date: Sep 2011

    Location: Kilmarnock, Ayrshire, Scotland

    Posts: 453
    I'm stuart.

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    If you want to go the DIY route then maybe a Salas DCG3 pre would fit the bill. Configurable gain from 2-4, very nice pre, I'm just finishing mine. https://www.diyaudio.com/forums/anal...headphone.html

    Here's a picture of mine nearing completion!

    Garrard 401, Jelco 750 with Shuggie, Ortofon 2M Black / ZYX Yatra 100, Project Phono RS with Sigma22 Linear PS, RPi3 + DigiOne + Linear PS, RPi3/1Tb SSD with PiCorePlayer + Linear PS, Perreaux Eloquence 250i 40th Anniversary with ES9038Pro DAC, Monitor Audio PL300, Tannoy Mansfield 15" HPD's.

  5. #15
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 9,764
    I'm Oliver.

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    Quote Originally Posted by killie99 View Post
    If you want to go the DIY route then maybe a Salas DCG3 pre would fit the bill. Configurable gain from 2-4, very nice pre, I'm just finishing mine. https://www.diyaudio.com/forums/anal...headphone.html

    Here's a picture of mine nearing completion!

    Is that alps pot in the signal path?
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 MK6 tonearm > Ortofon Kontrapunkt b > Bigbottle Jfet MC Valve Phonostage
    Digital: Orchard Audio PecanPi with JRiver
    Preamplifier: DCB1 with Khozmo 48 Step Series Attenuator or Neurochrome Differential Preamp
    Amplification: Neurochrome Modulus 686
    Cables: SPOTFIRE Speaker Cable & SPOTFIRE IC Cables & SPOTFIRE Tonearm cable
    Speakers: Mordaunt Short Performance 880

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

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

  6. #16
    Join Date: Sep 2011

    Location: Kilmarnock, Ayrshire, Scotland

    Posts: 453
    I'm stuart.

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    Yes, it's just temporary hence the reason for the hokey connector. Looking for a remote volume solution.
    Garrard 401, Jelco 750 with Shuggie, Ortofon 2M Black / ZYX Yatra 100, Project Phono RS with Sigma22 Linear PS, RPi3 + DigiOne + Linear PS, RPi3/1Tb SSD with PiCorePlayer + Linear PS, Perreaux Eloquence 250i 40th Anniversary with ES9038Pro DAC, Monitor Audio PL300, Tannoy Mansfield 15" HPD's.

  7. #17
    Join Date: Nov 2015

    Location: Wolverhampton

    Posts: 9,764
    I'm Oliver.

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    Quote Originally Posted by killie99 View Post
    Yes, it's just temporary hence the reason for the hokey connector. Looking for a remote volume solution.
    Phew!

    I thought, "all that beautiful work and then he's stuck an alps blue in!" lol

    Have a look at the Acoustic Dimensions Stepped attenuator. Bit smaller than the khozmo and every bit as good.
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 MK6 tonearm > Ortofon Kontrapunkt b > Bigbottle Jfet MC Valve Phonostage
    Digital: Orchard Audio PecanPi with JRiver
    Preamplifier: DCB1 with Khozmo 48 Step Series Attenuator or Neurochrome Differential Preamp
    Amplification: Neurochrome Modulus 686
    Cables: SPOTFIRE Speaker Cable & SPOTFIRE IC Cables & SPOTFIRE Tonearm cable
    Speakers: Mordaunt Short Performance 880

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

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

  8. #18
    Join Date: Oct 2012

    Location: The Black Country

    Posts: 5,096
    I'm Alan.

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    +1 to the that. The difference in clarity is quite surprising.
    Firebottle - for the no bottleneck approach.

    I love Hendrix for so many reasons. He was so much more than just a blues guitarist - he played damn well any kind of guitar he wanted. In fact I'm not sure if he even played the guitar - he played music. - Stevie Ray Vaughan

  9. #19
    Join Date: Nov 2018

    Location: Essex

    Posts: 29
    I'm Paul.

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    The ifi iTube2 is shockingly superb as a valve pre-amplifier with or without gain (9db) putting many an 'audiophile' product to shame and with facilities galore like a Swiss army pocket knife..... It can also be used as a buffer to increase gain and give a 'tube' sound..... I used it with a Western Electric 396A double triode valve and it was outrageous.....

    Thorsten Loesch and the Abbingdon Music Research crew of which iFi is a subsidiary nailed it so much so that I now use the iFi Pro which is a linestage/headphone amplifier....

    The most complete separate valve and separate solid state pre-amplifier I've ever assessed or owned..... Good luck....
    EMT 930ST
    Garrard 301/3009 MK1
    Nagra BPS
    47 Labs RJM PhonoClone
    Hashimoto HM-3
    Ortofon Cadenza Bronze/Kontrapunkt B/MC25FL
    Audioquest AQ404/B200
    Denon 103SA (Paratrace)
    Audio Technica AT33 Mono
    PYE HF12 Valve Monoblocks
    Pass Labs Aleph 0s
    Turner B302
    IFI Pro Linestage
    Marantz 1060 Integrated Amp
    47 Labs Stratos wired Bourns Passive
    Western Electric CD Line Transformer
    Yamaha CDR-HD1500
    Tannoy 15" custom

  10. #20
    Join Date: Nov 2008

    Location: belgrade serbia

    Posts: 738
    I'm gordan.

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    there is audiopax model 5 for sale on wam though the price is hefty.
    Gordan.
    Speakers: Oris Swing MkII
    Amps: Thomas Mayer 300b/ Hiraga La Maison de L'Audiophile 20
    Preamp: Silver AVC by eng. Ferenc Lazar
    Phono Preamp: Shishido LCR by Solaja Audio
    Deck: Garrard 301 Martin Bastin reworked/plinthed with Fidelity Research FR64fx
    Cartridges: SPU Spirit/ Koetsu Black revisited by eng. Salai/ Miyajima Shilabe
    Step Up Transformers: Tango MCT 999/ Ortofon T-5000/ Lumiere SUT
    Digital: Shigaclone by eng. Ferenc Lazar with Lampizator Amber II
    Wires: of sufficient length

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