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Thread: Switched attenuators, what's all the fuss about?

  1. #61
    Join Date: May 2015

    Location: Greece

    Posts: 199
    I'm Panos.

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    Quote Originally Posted by Jimbo View Post
    I hope your attenuators work out Panos, I will await the verdict at the end of January!

    Happy New Year
    Thanks for your kind wishes, James. All the best to you and your loved ones for a Healthy and Happy 2019.
    And best wishes to all other forum members as well!
    Panos
    System1: Roksan Xerxes original (HiFi Inspire plinth) with OriginLive DC motor + Audiomods Series5 + Denon DL-103R Namiki retipped, Music Maker III, ASR Mini Basis Exclusive, Marantz CD6005, LAB12 DAC1 SE+, Hattor BIG, Croft Micro25RSLS + Series7R monoblocks (110W/ea), Harbeth SHL5 Plus 40th Anniv., Falcon LS3/5a, LAB12 Gordian, Belden 8428, Black Cat Red Level Triode, LAB12 Knack MkII

    System 2: Marantz CD6003, Croft SuperMicroII ('R' spec by Croft, Tesla E83CC in phono)+ Series7, Snell Type EII (with bypass caps, new internal wiring, WBT nextgen 0703Cu), Mark Grant HDX1, Atlas Hyper 3.0

  2. #62
    Join Date: May 2015

    Location: Greece

    Posts: 199
    I'm Panos.

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    Hello everyone.
    It's taken quite some time, but it seems that we are reaching the end of the road with respect to the modification of my Croft Micro25RSLS preamp with dual-mono stepped attenuators of Khozmo/Hattor make. They are shunt with z-foil resistors. The input selector has been changed, as well. And yes, there is a remote control as well.
    I should be receiving the modified Croft within the next couple of weeks. Fingers crossed about how it's going to sound. Until then, I can only post a few photos about before and after...

    Croft Micro25RSLS.jpgCroft_25RSLS_upgraded1.jpgCroft_25RSLS_upgraded2.jpg
    System1: Roksan Xerxes original (HiFi Inspire plinth) with OriginLive DC motor + Audiomods Series5 + Denon DL-103R Namiki retipped, Music Maker III, ASR Mini Basis Exclusive, Marantz CD6005, LAB12 DAC1 SE+, Hattor BIG, Croft Micro25RSLS + Series7R monoblocks (110W/ea), Harbeth SHL5 Plus 40th Anniv., Falcon LS3/5a, LAB12 Gordian, Belden 8428, Black Cat Red Level Triode, LAB12 Knack MkII

    System 2: Marantz CD6003, Croft SuperMicroII ('R' spec by Croft, Tesla E83CC in phono)+ Series7, Snell Type EII (with bypass caps, new internal wiring, WBT nextgen 0703Cu), Mark Grant HDX1, Atlas Hyper 3.0

  3. #63
    Join Date: Jan 2013

    Location: Birmingham

    Posts: 4,534
    I'm James.

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    Looking good Panos. May I ask who is doing the work for you? I will be very interested to read your first listening experience with the new attenuators.
    VPI Scout 1.1 - Ortofon 2M Black FGS - Croft 25R+ - Croft Series 7 - Spendor SP2

  4. #64
    Join Date: May 2015

    Location: Greece

    Posts: 199
    I'm Panos.

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    Hi James,
    the guy doing the modification is Arek Kallas, the designer/owner of Khozmo/Hattor. I am also very interested in the results.
    A few months ago, when I had connected (via interconnects) the Hattor dual-mono passive preamp (as the volume controller) and the Croft preamp (as the active preamp stage), the result was better than the sum of the parts. And that's why I decided to proceed with the modification of the Croft internally.
    We'll have the verdict in a couple of weeks or so.
    System1: Roksan Xerxes original (HiFi Inspire plinth) with OriginLive DC motor + Audiomods Series5 + Denon DL-103R Namiki retipped, Music Maker III, ASR Mini Basis Exclusive, Marantz CD6005, LAB12 DAC1 SE+, Hattor BIG, Croft Micro25RSLS + Series7R monoblocks (110W/ea), Harbeth SHL5 Plus 40th Anniv., Falcon LS3/5a, LAB12 Gordian, Belden 8428, Black Cat Red Level Triode, LAB12 Knack MkII

    System 2: Marantz CD6003, Croft SuperMicroII ('R' spec by Croft, Tesla E83CC in phono)+ Series7, Snell Type EII (with bypass caps, new internal wiring, WBT nextgen 0703Cu), Mark Grant HDX1, Atlas Hyper 3.0

  5. #65
    Join Date: Jan 2013

    Location: Birmingham

    Posts: 4,534
    I'm James.

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    Quote Originally Posted by pankon View Post
    Hi James,
    the guy doing the modification is Arek Kallas, the designer/owner of Khozmo/Hattor. I am also very interested in the results.
    A few months ago, when I had connected (via interconnects) the Hattor dual-mono passive preamp (as the volume controller) and the Croft preamp (as the active preamp stage), the result was better than the sum of the parts. And that's why I decided to proceed with the modification of the Croft internally.
    We'll have the verdict in a couple of weeks or so.
    Hi Panos, looks cool and very modern, nice you have kept the dual mono design. Hope it all works out and the attenuators make a difference. From the chaps I know who have gone down this route it has been a big improvement.
    VPI Scout 1.1 - Ortofon 2M Black FGS - Croft 25R+ - Croft Series 7 - Spendor SP2

  6. #66
    Join Date: Jun 2015

    Location: London/Durham

    Posts: 2,525
    I'm Lawrence.

    Default

    Quote Originally Posted by pankon View Post
    Hello everyone.
    It's taken quite some time, but it seems that we are reaching the end of the road with respect to the modification of my Croft Micro25RSLS preamp with dual-mono stepped attenuators of Khozmo/Hattor make. They are shunt with z-foil resistors. The input selector has been changed, as well. And yes, there is a remote control as well.
    I should be receiving the modified Croft within the next couple of weeks. Fingers crossed about how it's going to sound. Until then, I can only post a few photos about before and after...

    Croft Micro25RSLS.jpgCroft_25RSLS_upgraded1.jpgCroft_25RSLS_upgraded2.jpg
    Looks like it's a beautiful job and brings the Croft bang up to date visually and technologically. Loving the display meters. Not sure what Glenn would make of it, I think you should send him pics (if you haven't already done so) so that he can see what can be done with his amps if one so chooses.

    One question, looking at the first photo, this pre seems to have multiple (valve?) regulated external power supplies. How has the impact of the new boards been factored in, and which of the supplies are they drawing off, or has a new supply rail been added?

    Sent from my BLN-L21 using Tapatalk

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