Speaker Pop With Power On of B&K EX-442

msg
msg Posts: 10,027
edited January 2014 in Electronics
Hey guys,
I'm getting a bit of speaker pop when I turn on or off the B&K EX-442 amp I found a couple of weeks ago.
I've got the MC-101 > EX-442 > RTi10 speakers

I keep the volume turned down
Power on source
Power on preamp
Power on amp


every time there is a little pop.


Is this normal for old equipment?
Will it damage my speakers?
Is there a way to power cycle to avoid this?
I disabled signatures.
Post edited by msg on
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Comments

  • Pycroft
    Pycroft Posts: 1,960
    edited January 2014
    Not an OFFICIAL reply, but when I do it, there's not what I'd call a 'POP', but rather a small sound that signifies to me that the amp is on. If it's a loud sound, I'd be concerned, but I'm guessing it's what I hear in mine.

    James
    2 Channel/HT:
    Sony SS-M9 P's (ES version)
    Sony SS-M1CN Center Channel
    Polk RT800 Surround Speakers
    Odyssey Stratos Dual Mono Amplifiers
    TAD 150 Signature Tube Preamp
    Harman Kardon HK354
    Sony SACD Player
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  • msg
    msg Posts: 10,027
    edited January 2014
    okay, yeah, it's more of a click, not a hugely loud pop as long as the volume is down, but I can feel some small movement in the drivers.
    I disabled signatures.
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  • Pycroft
    Pycroft Posts: 1,960
    edited January 2014
    If it was a POP, you'd know it. I asked my wife to turn on the stereo, and she forgot the order. When she turned the preamp on when the power amp was on, it was a HUGE pop. I wouldn't be concerned.

    James
    2 Channel/HT:
    Sony SS-M9 P's (ES version)
    Sony SS-M1CN Center Channel
    Polk RT800 Surround Speakers
    Odyssey Stratos Dual Mono Amplifiers
    TAD 150 Signature Tube Preamp
    Harman Kardon HK354
    Sony SACD Player
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  • msg
    msg Posts: 10,027
    edited January 2014
    hehe, okay cool.
    so what is the order/process?
    I disabled signatures.
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  • F1nut
    F1nut Posts: 50,566
    edited January 2014
    Someone else just asked about pops with B&K amps and IIRC, they have no mute relays, so it's normal.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • billbillw
    billbillw Posts: 6,767
    edited January 2014
    I would check DC offset to be safe. AK has a long thread on how to check it in their vintage subforum.
    For rig details, see my profile. Nothing here anymore...
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  • msg
    msg Posts: 10,027
    edited January 2014
    F1nut wrote: »
    Someone else just asked about pops with B&K amps and IIRC, they have no mute relays, so it's normal.
    yeah, I think I read the other day that you can build in relays to delay the power up
    billbillw wrote: »
    I would check DC offset to be safe. AK has a long thread on how to check it in their vintage subforum.
    okay, great, thanks for that info!
    I disabled signatures.
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