Klipsch Promedia 2.1 rhythmic subwoofer "pulsing" during standby

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Xan03
    Senior Member
    • Jan 2021
    • 52
    • Europe

    #1

    Klipsch Promedia 2.1 rhythmic subwoofer "pulsing" during standby

    Hi,

    I have this 2.1 Klipsch set where the subwoofer emits a constant whine in standby, in addition to a constant rhythmic pulsing/thumping. Only way to make it stop is to cut power. I think this thread mentions the same issue, though my set is not a BT one: https://community.klipsch.com/index....-bt-subwoofer/

    I think all this Klipsch gear is using crappy capacitors. Is it worth trying to replace the caps in the subwoofer amp to make this go away?

Related Topics

Collapse

  • scubabuzz
    Klipsch RSW-12 subwoofer won't power on
    by scubabuzz
    I have a Klipsch RSW-12 subwoofer that will flash the LED red when the power switch is turned on and once in a while will create a pop out of the speaker. It does not blow the fuse so I am assuming this is probably a power supply issue. Does anyone know if there is a service manual and/or schematics available for this unit?
    08-02-2022, 08:34 PM
  • tvguy12012012120
    Zombie Samsung UN55NU6900F dead / no standby voltage - randomly came to life after hours of troubleshooting then died
    by tvguy12012012120
    This is my first attempt at troubleshooting a board like this, I know I could just buy a new board but I'm curious to figure out how this works. I've been testing different components in the evenings this week and I think the problem is with the IC failing to start up for some reason. When the board is plugged in there is no standby voltage.

    Then today it randomly sprung to life like a zombie but shortly died thereafter. I have no idea why it would have done that and its the first time I've seen it running. I discharged capacitors on the board last night, then it was sitting today....
    02-07-2025, 05:13 PM
  • rustinjust
    Please help, subwoofer connected to tv, read description below
    by rustinjust
    I've got a subwoofer that I've had for nearly 20 years, it did come with a basic remote which I've lost. It's a generic make of subwoofer, I can't see a brand sticker on it. It comes with 2 speakers.

    Question recently I've connected it up to my tv which has greatly improved the sound on my tv, however I'd like to be able to mute the subwoofer when ads come on or just mute it when the phone rings etc. I tried using a cheap all in one tv remote on the subwoofer and the volume button would only work to increase volume but not turn it down or mute it

    Is there a way of...
    10-28-2023, 07:09 AM
  • rustinjust
    Please help, where can I get a remote for my subwoofer?
    by rustinjust
    I’ve got a subwoofer that I’ve had for nearly 20 years, it did come with a basic remote which I’ve lost. It’s a generic make of subwoofer, I can’t see a brand sticker on it. It comes with 2 speakers.

    Question recently I’ve connected it up to my tv which has greatly improved the sound on my tv, however I’d like to be able to mute the subwoofer when ads come on or just mute it when the phone rings etc. I tried using a cheap all in one tv remote on the subwoofer and the volume button would only work to increase volume but not turn it down or mute it

    Is there...
    10-28-2023, 03:43 AM
  • link626
    Klipsch computer subwoofer speakers hissing buzzing. Does this look like bad cap?
    by link626
    Klipsch 4.1 computer speakers hissing.

    Looking at all the caps on the amplifier, they all seem flat, except one maybe.

    Not sure if this is leakage, or factory marker pen.

    Can you tell?

    The speaker system recently developed nonstop hissing noise. after 22 years.

    Is there a special kind of cap I have to buy?
    Low ESR? or general?

    I see these for sale.... Panasonic FC 47uF 50v low ESR radial Capacitors caps 105C New low impedance...
    08-02-2022, 06:38 PM
  • Loading...
  • No more items.
Working...