Problem with parasound hca-1200

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Comments

  • megasat16
    megasat16 Posts: 3,521
    edited September 2013
    disconnect the speakers just to be safe.
    Trying out Different Audio Cables is a Religious Affair. You don't discuss it with anyone. :redface::biggrin:
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  • laotzu61
    laotzu61 Posts: 327
    edited September 2013
    at the risk of beating a dead horse, I have another question. now that it has been determined that the problem is with the hafler dh-110 preamp putting a small amount of voltage into the amp; I turn on my components in this sequence--cd player, preamp, amp. doing this, with the volume on the pre all the way down, I get a small "pop" in the speakers, which I assume is not good. can I therefore turn on ; cd player, amp and then pre without any harmful effect until I can afford to get the pre fixed?
    "The symbol is not the reality"
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  • DaveHo
    DaveHo Posts: 3,529
    edited September 2013
    Stick to your original order. If the pre-is sending a small amount ot DC to the amp, the pop could possibly be larger otherwise.
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  • soundfreak1
    soundfreak1 Posts: 3,414
    edited September 2013
    If the pre is dumping dc voltage into the amp DONT USE IT! No gain in useing it and poss all loss , just crazy to risk other equip.
    Main Rig:
    Krell KAV 250a biamped to mid/highs
    Parasound HCA1500A biamped to lows
    Nakamichi EC100 Active xover
    MIT exp 1 ic's
    Perreaux SA33 class A preamp
    AQ kingcobra ic's
    OPPO 83 CDP
    Lehmann audio black cube SE phono pre, Audioquest phono wire (ITA1/1)
    Denon DP-1200 TT. AToc9ML MC cart.
    Monster HTS 3600 power conditioner
    ADS L1590/2 Biamped
    MIT exps2 speaker cable
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  • laotzu61
    laotzu61 Posts: 327
    edited September 2013
    okay. points taken. since this happens during the procedure of turning the components on, is the pre dumping this stray voltage only at the onset of turning on, or is the stray voltage steady once everything is on? in other words, is it ok to leave it on until I can afford to get the pre fixed, or get a different one?
    "The symbol is not the reality"
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  • soundfreak1
    soundfreak1 Posts: 3,414
    edited September 2013
    I wouldnt even have it in the system until it was checked out
    .you are just asking for it to get worse and poss fry the 1200 dint screw with equip that is discharging DC untill you know what it is doing! Outside of the system.
    Main Rig:
    Krell KAV 250a biamped to mid/highs
    Parasound HCA1500A biamped to lows
    Nakamichi EC100 Active xover
    MIT exp 1 ic's
    Perreaux SA33 class A preamp
    AQ kingcobra ic's
    OPPO 83 CDP
    Lehmann audio black cube SE phono pre, Audioquest phono wire (ITA1/1)
    Denon DP-1200 TT. AToc9ML MC cart.
    Monster HTS 3600 power conditioner
    ADS L1590/2 Biamped
    MIT exps2 speaker cable
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  • laotzu61
    laotzu61 Posts: 327
    edited October 2013
    just want to give an update on the situation. it was in fact the preamp, which is now disconnected. I run the cd player right thru the amp for now, until I can get a different pre. thank god the amp and rta12b's are okay. thanks again for all the help.
    "The symbol is not the reality"
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  • Polkie2009
    Polkie2009 Posts: 3,834
    edited October 2013
    Good to hear laotzu, are you going to be looking for a used preamp anytime soon?
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  • laotzu61
    laotzu61 Posts: 327
    edited October 2013
    yes, but, as usual, it's a question of money right now. i'm kind of focused on a dynaco pas3x, or an audio research sp4.
    "The symbol is not the reality"
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