Eosone RSF1000 amplifier hum

cypherpunks
cypherpunks Posts: 4
edited May 2014 in Troubleshooting
All the RSF1000's I've seen, including my mint condition direct purchase set, have an easily heard amplifier hum.
Just turn them on, put your ear within a few inches of the sub cones, and hummmmmmmm they go.
I can hear them even while sitting in my room at the sweet spot. I was always *very* disappointed with this.
Do you guys have, or can you post, a mod to fix this?
Does anyone have any hacks?
It is very annoying. So I'll put my soldering iron to them if you tell me where and what.
Please also post a service manual for these amps.
Thanks :)
Post edited by cypherpunks on
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Comments

  • cypherpunks
    cypherpunks Posts: 4
    edited May 2014
    I should note:
    I've heard there were a number of amp production runs. Mine have fins. If you post the serial range of each series I could tell better.
    I've also considered removing the amps and wiring direct, but was concerned about frying the higher freq drivers with bass current. Any ideas / circuit ideas there?
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  • F1nut
    F1nut Posts: 50,546
    edited May 2014
    I can you that no one from Polk is posting a service manual or serial numbers here. You can try calling Polk next Tuesday.
    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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  • Msabot1
    Msabot1 Posts: 2,098
    edited May 2014
    Why would you buy a set of speakers with an audible hum from the on board amp? Is this something that just began happening? I scored a pair of 600's a year ago...not bad for off brand..pretty good image and spatial zone...of course,there is no on board amp on these...
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  • tonyb
    tonyb Posts: 32,962
    edited May 2014
    You sure its not a ground loop problem ?
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