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Thread: LDR preamp build

  1. #1
    Join Date: Sep 2013

    Location: North Island New Zealand

    Posts: 1,349
    I'm Chris.

    Default LDR preamp build

    Hi
    I am posting up this thread to show what is involved with building a LDR preamp into casework.

    This first image shows the transformer a toroidal with AC secondaries 12v- 0v 12v- 0v awaiting wiring the blue primary wires to a IEC connector with integral fuse
    the remote control regulator, remote control board, and new main board.

    Further images and description as it proceeds.
    Attached Images Attached Images

  2. #2
    Join Date: Mar 2017

    Location: London N2

    Posts: 1,530
    I'm Edward.

    Default





    Main: Tidal/Roon > MiniITX > Metrum Hex > LDR > either Radford STA25 V or Trilogy 968 > Tannoy (Eaton or Berkeley).
    2nd: Tidal/Roon > Roopio on Pi > Chevron Paradox > Firebottle Buffer > Sugden Masterclass 2018 spec > Kudos Cardea


  3. #3
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 88,499
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    Yes, I'm looking forward to this arriving...

    Marco.

  4. #4
    Join Date: Apr 2012

    Location: Southall, West London

    Posts: 40,844
    I'm Geoff.

    Default

    And I'm interested in hearing about that Marco. I've fancied trying one for a while.

  5. #5
    Join Date: Oct 2012

    Location: The Black Country

    Posts: 5,006
    I'm Alan.

    Default

    I have just wired one into a supplied case for a member on here. It was very transparent.

    It is Steve from Birmingham but can't recall his forum name.

  6. #6
    Join Date: Mar 2017

    Location: London N2

    Posts: 1,530
    I'm Edward.

    Default

    I have the 2010 version. As Alan says very transparent. Just let's the music flow through.

    Have ordered the latest version which according to Chris (LDR) will be more transparent. Also ordered the remote control. Hopefully I will be able to install the lot easily.

    @marco you are in front of me in the queue.

    Main: Tidal/Roon > MiniITX > Metrum Hex > LDR > either Radford STA25 V or Trilogy 968 > Tannoy (Eaton or Berkeley).
    2nd: Tidal/Roon > Roopio on Pi > Chevron Paradox > Firebottle Buffer > Sugden Masterclass 2018 spec > Kudos Cardea


  7. #7
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 88,499
    I'm AudioAl'sArbiterForPISHANTO.

    Default

    Lol... Just looking forward to hearing what it sounds like and comparing it with my Croft, then reviewing it for the forum.

    The review be in-depth and 'professional', magazine stylee, in a way I haven't produced for a long time, with references to various music recordings and plenty of pics, so stay tuned!

    Marco.

  8. #8
    Join Date: Feb 2010

    Location: Berkshire, UK

    Posts: 3,909
    I'm Tom.

    Default

    Quote Originally Posted by Edwardlon View Post
    I have the 2010 version. As Alan says very transparent. Just let's the music flow through.

    Have ordered the latest version which according to Chris (LDR) will be more transparent. Also ordered the remote control. Hopefully I will be able to install the lot easily.

    @marco you are in front of me in the queue.


    Is that the one we tried at my place Edward?
    Main: Speakers 'RFC' Tannoy Canterburys / custom crossovers with Tannoy ST50 supertweeters; Amp - Silvercore 833C monoblocks; preamp TBA watch this space; Vinyl: Schopper'd Thorens TD124 MkII + Ikeda IT345-CR1 9 inch and Ikeda IT-407 12 inch tonearms; Cartridges Stereo - Miyajima Madake, Miyajima Takumi, Ikeda 9TT, vintage Ortofon SPU GE; Mono - Miyajimas - Zero 0.7, Premium 1.0, Miyajima/Edison '78' 4.0 conical, and Shure M44 strapped for mono with several Expert Stylus conicals for different eras of 78s; Phono stage Allnic H7000V used with Miyajima ETR-Mono and ETR-Stereo SUTs; Digital: Audio Note CDT2/II transport, heavily enhanced AN DAC based on kit but aspiring to DAC5 spec.

    Study: Speakers - Tannoy DC6; Amp: Marantz PM-4; Digital: CDP Sony CDP-X3000ES & Arcam rBlink; Vinyl: Garrard 401 with AT 1503 MkI broadcast arm, Ortofon SPU Classic GM, Ortofon 2-15k SUT and Puresound Tenuto platter mat

  9. #9
    Join Date: Mar 2017

    Location: London N2

    Posts: 1,530
    I'm Edward.

    Default

    Quote Originally Posted by montesquieu View Post
    Is that the one we tried at my place Edward?
    The very one.

    Main: Tidal/Roon > MiniITX > Metrum Hex > LDR > either Radford STA25 V or Trilogy 968 > Tannoy (Eaton or Berkeley).
    2nd: Tidal/Roon > Roopio on Pi > Chevron Paradox > Firebottle Buffer > Sugden Masterclass 2018 spec > Kudos Cardea


  10. #10
    Join Date: Sep 2013

    Location: North Island New Zealand

    Posts: 1,349
    I'm Chris.

    Default

    Final audition of main board tonight external to case. Very pleased with how it is sounding.
    Attached Images Attached Images

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