Can anyone explain this? (Monitor 11)

mdaudioguy
mdaudioguy Posts: 5,165
edited April 2010 in Vintage Speakers
Upon removing the grills from the Monitor 11s, I was struck by the oddly shaped cutout around the tweeter. I slipped a sheet of paper between the cutout and the fabric, so that the shape of the cutout would stand out in the pic. I'm assuming that this affects the dispersion of sound from the tweeter and also that the grill was specifically designed like this for a reason. If that's the case, I guess Polk designed this speaker for use with grills on. Just wondering if anyone knew anything about this or had any thoughts in it.
Post edited by mdaudioguy on
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  • hoosier21
    hoosier21 Posts: 4,413
    edited April 2010
    pre drug testing Friday afternoon
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    Where is the remote? Where is the $%#$% remote!

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  • BlueMDPicker
    BlueMDPicker Posts: 7,569
    edited April 2010
    This MEANS something!

    tivo_logo_man-744939.jpg

    Maybe Ken Swauger can provide some insight? I had those for years and never noticed the cutout.
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  • skrol
    skrol Posts: 3,393
    edited April 2010
    You are correct, it is for dispersion (defraction control). In their tech literature for the RTA8TL & RTA11TL they even mention that the speaker sounds better with the grill ON. The RTA11TL grills are not so oddly shaped but my Monitor 5A's are.
    Stan
    Stan

    Main 2ch:
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    HT:
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    Other stuff:
    Denon: DRA-835R, AVR-888, DCD-660, DRM-700A, DRR-780; Polk: S8, Monitor 5A, 5B, TSi100, RM7, PSW10 (DXi104 upgrade); Pioneer: CT-6R; Onkyo CP-1046F; Ortofon OM5E, Marantz: PM5004, CD5004, CDR-615; Parasound C/PT-600, HCA-800ii, Sony CDP-650ESD, Technics SA 5070, B&W DM601
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  • F1nut
    F1nut Posts: 50,755
    edited April 2010
    hoosier21 wrote: »
    pre drug testing Friday afternoon

    Hehe....:D
    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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  • mdaudioguy
    mdaudioguy Posts: 5,165
    edited April 2010
    BlueMDPicker wrote: »
    This MEANS something!

    Perhaps Polk should claim some sort of copyright infringement against Tivo!:p
    BlueMDPicker wrote: »
    Maybe Ken Swauger can provide some insight? I had those for years and never noticed the cutout.

    You really never noticed this? How did you usually listen to these - grills on or off?

    Just for reference, I added a red dot to the pic to show where the tweeter sits behind the cutout.

    Ken? Are you out there?
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  • BlueMDPicker
    BlueMDPicker Posts: 7,569
    edited April 2010
    mdaudioguy wrote: »
    You really never noticed this? How did you usually listen to these - grills on or off?

    I always had the grilles on, don't ever remember listening to them naked.
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  • comfortablycurt
    comfortablycurt Posts: 6,745
    edited April 2010
    Don't some of the SDA's have a similar style cutout in front of the tweeters?
    The nirvana inducer-
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