Magnetic grilles on LSiM705 falling

pyrocyborg
pyrocyborg Posts: 524
edited May 2014 in Speakers
Hi!

Ran a frequency sweep today (well... in fact, 4 in a row) at around 85 dB with bass peaks at 96 dB (40-50 Hz) and well, the magnetic grille did fall during the last sweep. Sure thing, I won't be cranking them out at that level anytime soon, but is it something that happens with these kind of grille especially during bass heavy movie effects? ... or maybe the grille wasn't perfectly positionned.
Speakers: Polk Audio LSiM 705, LSiM 703, LSiM 704c
Receiver: Denon X3500H
Post edited by pyrocyborg on
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Comments

  • jbooker82
    jbooker82 Posts: 1,627
    edited May 2014
    Helps with the visual explosion effects.
    AVR: Onkyo Tx-NR808
    Amplifier: Carver A-753x 250 watts x 3
    Fronts: Polk RTI A7 (modded by Trey VR3)
    Center: CSI A4 (modded by Trey VR3)
    Rear: FXI A4
    Sub: Polk DSW Pro 660wi
    TV: LG Infinia 50PX950 3D
    Speaker Cable: AudioQuest Type 8
    IC: AudioQuest Black Mamba II
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  • pyrocyborg
    pyrocyborg Posts: 524
    edited May 2014
    jbooker82 wrote: »
    Helps with the visual explosion effects.

    True that... :P Well, maybe the grille was poorly positionned. It didn't do it again. However, I feared that it could have hurt the tweeter while falling but everything seems fine. In a month, I won't be using the grilles again anyways, except when there are visitors... ;)
    Speakers: Polk Audio LSiM 705, LSiM 703, LSiM 704c
    Receiver: Denon X3500H
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  • VR3
    VR3 Posts: 28,775
    edited May 2014
    I find slightly bending the grill to where it puts more pressure at the top and bottom works best, don't bend it alot obviously
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • pyrocyborg
    pyrocyborg Posts: 524
    edited May 2014
    VR3 wrote: »
    I find slightly bending the grill to where it puts more pressure at the top and bottom works best, don't bend it alot obviously

    Thanks for the suggestion!
    Speakers: Polk Audio LSiM 705, LSiM 703, LSiM 704c
    Receiver: Denon X3500H
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