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Diamond Bass Comp Users - 9V vs. 18v

Discussion in 'Effects [BG]' started by Ross McLochness, Feb 26, 2018.


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  1. Feb 26, 2018 #1
    Ross McLochness

    Ross McLochness Living Room Bassist Extraordinaire Supporting Member

    Aug 20, 2013
    Eden Prairie, MN
    Good morning TB.
    I recently purchased a used Diamond BCP-1.
    It came with the reverse polarity cable, but not the original 18 volt power supply.
    I've been powering it with my OneSpot > Reverse Polarity Cable > to Pedal.
    Am I losing out in terms of headroom or functionality by only running it at 9v?
    Is anyone able to recommend an 18 volt power supply that works for the Diamond?
    I believe the Diamond 18 volt power supply has to have a positive tip (not negative) which appears to be non-standard.

    Any help is much appreciated.
     
  5. Feb 26, 2018 #2
    Mosfed

    Mosfed

    Apr 21, 2013
    Washington DC
    Partner - CCP Pedals
    I liked it better at 18v.

    Most power supplies will require you use the converter cable.
     
  10. Feb 26, 2018 #3
    Planespotter

    Planespotter

    Oct 11, 2015
    Seattle
    I used a BCP-1 for a while. 9v is ok for low output basses, but for active or hotter output passive 18v is a must.
     
  14. Feb 26, 2018 #4
    geolikezik

    geolikezik

    Mar 13, 2016
    Switzerland
    I run the Diamond BCP-1 with 9v because I tested with 18v and I couldn't hear any differences for my low or high output passive basses. Also it didn't seem to increase the threshold range, I wish it did...
    But I haven't yet tried 9v with active bass.
     
  18. Feb 26, 2018 #5
    tflk

    tflk Supporting Member

    Aug 26, 2008
    Seattle
    Regarding this subject. Can I use the supplied reverse polarity cable and with the 18V jack on my Voodoo ISO-5? I would assume that would simply be the same as using the power cable that came with it. Right?
     
  22. Feb 26, 2018 #6
    thebreakman

    thebreakman \m/

    Sep 14, 2013
    Mechanicsville, Virginia
    I use 18v, never tried 9v. Standard p bass with geezers
     
  26. Feb 26, 2018 #7
    Jeff Elkins

    Jeff Elkins Gold Supporting Member

    Sep 13, 2007
    Johnson City, TN
    Yes. That is correct.
     
  31. Feb 26, 2018 #8
    MobileHolmes

    MobileHolmes I used to be BassoP

    Nov 4, 2006
    Iowa
    I'm in the same boat as you (bought used, no power supply), and honestly sort of unimpressed with it at 9V. I also haven't used it in a while and am starting to think it really doesnt' matter for me if I have a compressor or not.
     
  35. Feb 27, 2018 #9
    Bassist30

    Bassist30 Supporting Member

    Mar 19, 2004
    NEW YORK
  39. Mar 6, 2018 #10
    Ross McLochness

    Ross McLochness Living Room Bassist Extraordinaire Supporting Member

    Aug 20, 2013
    Eden Prairie, MN
    I reached out to Diamond (as I purchased my BCP-1 used and the previous owner didn't have the original power supply).
    Diamond responded back as follows:
    Just in case anyone wants to buy the exact one they Diamond ships with a brand new unit.
     
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