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  • February 19, 2018 at 1:26 pm #85206
    spooksagain
    Member

    I’ve used my C9 a few times in the studio and on about 3 shows last year. I love the sound of it.

    Unfortunately, it’s now have a problem.

    It won’t output any organ sound until I unplug and plug it in the 9 volt plug at the back.
    I’m powering it with Voodoo Power2, also tried to test it using the original power supply (same problem)

    The indicator LED will come on as soon as I plug the pedal but I’ll get no organ sound.
    This is very annoying, the pedal is “like new”.

    The only way for me to use it it to pull it out of my pedaltrain and to unplug and plug again the 9v and turn the preset knob in order to hear the organ sound again.

    Could it be a bad connection inside? A faulty component?

    I glanced at the EHX forum and it seems that I am not the only one who has got the same problem..

    I wrote to the given email but so far had no replies.

    Any suggestions would be grateful.

    Cheers
    Yves

    February 19, 2018 at 1:59 pm #123612
    EHX STAFF
    Keymaster

    The problem is the third party power supply you are using ramps voltage up slowly at boot up and that stalls the C9.
    Please try the supply that came with the pedal and see if you still have the problem.

    When did you write service? I am sorry they did not write you back.
    We are closed on the weekend.

    May 11, 2018 at 7:29 pm #123894
    Tor Arve Baroy
    Member

    Hi, I have the same problem. Is it fixable?

    May 12, 2018 at 1:53 pm #123897
    EHX STAFF
    Keymaster

    Yes please use the EHX supply or one that does not ramp up its voltage.

    May 16, 2019 at 11:57 pm #125240
    boomerang1
    Participant

    ]I had the same issue, Proper supply helps. Also, I am still trying to get around the ” bypass” issues that EH appears to be digging in and not fixing. If I run the dry output of the C9 into one side of the stereo input of my DD6 delay, and then use a volume pedal between the organ output and the other other side of the stereo input of my DD6, I leave the C9 on all the time, and use the pedal to bring the organ output up and down, would that set up some kind of weird feedback loop on the C9 output, thanks

    May 17, 2019 at 2:10 pm #125243
    EHX STAFF
    Keymaster
    Quote:
    ]I had the same issue, Proper supply helps. Also, I am still trying to get around the ” bypass” issues that EH appears to be digging in and not fixing. If I run the dry output of the C9 into one side of the stereo input of my DD6 delay, and then use a volume pedal between the organ output and the other other side of the stereo input of my DD6, I leave the C9 on all the time, and use the pedal to bring the organ output up and down, would that set up some kind of weird feedback loop on the C9 output, thanks

    That would be fine.

    September 30, 2022 at 11:18 am #194159
    guitartoys
    Participant

    I had the same problem with a C9 on a Strymon Zuma supply. I tried multiple C9’s and none would work with the Zuma. But they of course worked with the 9.6V EH supply.

    I found the POG2 worked fine with the Zuma, and swapped to that. I’m in the process of making a little adjustable voltage regulator to take the 12V from the Zuma, and dial it to 9.6V to see if that fixes it.

    September 30, 2022 at 12:39 pm #194160
    EHX STAFF
    Keymaster

    Same as above… the Strymon supply ramps up slow and stalls many pedals besides EHX.
    It is the supplies fault.
    9 volts is the same as 9.6. 9.6 volts is what a fresh 9 volt battery puts out.

    September 30, 2022 at 12:53 pm #194163
    guitartoys
    Participant

    So you are telling me that the rate in which a supply goes from 0 to 9v when powering up is the cause of this error? This doesn’t make sense. If this was inrush current, maybe I’d understand. But once the supply has settled, the pedal should just boot. I’ve never heard of this ever. What other pedals than EHX have this issue?

    October 4, 2022 at 7:47 pm #194299
    EHX STAFF
    Keymaster

    guitartoys I am not sure in your case what the issue is, but have heard it is an issue with other pedals like Meris.
    What I have seen is the slow ramp up to full voltage will stall the pedals start up.
    Plugging the pedal back in to the power supply on starts the pedal fine.

    Please write the techs at info@ehx.com
    They may have more info for you.

    August 15, 2023 at 4:17 am #203384
    Rozo
    Participant

    A bit late on this but, I’ve had this boot issue on my C9 using the supplied Ehx psu. I’ve found by switching the bypass switch inside the unit, it now powers up fine even on a 3rd party psu
    I can live with that, The boot problem was irritating and I found it unacceptable to keep replugging in the unit. Hope this helps someone.

    August 15, 2023 at 4:21 am #203385
    Rozo
    Participant

    I’ve had this boot issue on my C9 using the supplied Ehx psu. I’ve found by switching the bypass switch inside the unit, it now powers up fine even on a 3rd party psu
    I can live with that, The boot problem was irritating and I found it unacceptable to keep replugging in the unit. Hope this helps someone.

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