CRS+ RestoMod

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  • xschop
    xschop Posts: 5,652
    Note to self and maybe help others. Tested the continuity, and the Neutrik male NL2 whips I have on hand match the female NL4 (for new terminal plates). The "Pin" being 1+ and the "Blade" being 1- respectively....

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  • xschop
    xschop Posts: 5,652
    I'm ecstatic to say the least after running sweep tests. The questionable 6511 is staying dead center at clearly over max excursion. I'd never play these that loud, but by eye sight I can see the cone base traveling a quarter inch or more both ways...

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  • xschop
    xschop Posts: 5,652
    edited June 3
    Best vid I could do. This is after I turned volume down on amp too. Ran about 20 cycles on all drivers.The pop is in the bass tone recording at end.
    I believe a factory driver would have over extended and crashed the coil on the base plate...

    https://youtu.be/fGaQL44KR0Y?si=RJmNnSVw6ZOF302w
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  • xschop
    xschop Posts: 5,652
    Only thing I could work on today.
    Large upright belt sander cleaned up overhang of attached piece. Thick coat of flat white primer, then smokey beige hides the frame under the grill cloth nicely.
    I'll lightly Dremel the peg holes out like I did for the first one, then attach cloth...

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  • xschop
    xschop Posts: 5,652
    Filled the seams before sanding this time....

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  • xschop
    xschop Posts: 5,652
    @pitdogg2 ...Only mod going on today. I upgraded my chicken and waffles to added bacon....

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  • Gardenstater
    Gardenstater Posts: 4,854
    I hope you sopped up all that yoke brutha! 👀
    George / NJ

    Polk 7B main speakers, std. mods+ (1979, orig owner)
    Martin Logan Dynamo sub w/6ft 14awg Power Cord
    Onkyo A-8017 integrated
    Logitech Squeezebox Touch Streamer w/EDO applet
    iFi nano iDSD DAC
    iPurifier3
    iDefender w/ iPower PS
    Custom Steve Wilson 1m UPOCC Interconnect
    iFi Mercury 0.5m OFHC continuous cast copper USB cable
    Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
    Custom Vibration Isolation Speaker Stands and Sub Platform
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  • xschop
    xschop Posts: 5,652
    edited June 6
    All joking aside, I did tidy up the X-over adapter. The M4 standoffs were ideal (props to @pitdogg2)
    I had to redrill the plate to move one over to an adjacent hole because the original was too close to the pin terminal plastic housing to fit the nylon nut even.

    Added damping foam front(under compression) to back (1/8" PVA) so no vibes will rear their ugly head.
    I'll simply have to drill the factory location to 5/16" so the barrel nut is self-guided thru the rear baffle....

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    Post edited by xschop on
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  • SCompRacer
    SCompRacer Posts: 9,147
    Speaking of bacon, that is hardly enough. :) I don't like to cook it inside, so I do it on the grill. I do 3 pounds with the hope of freezing some but only come in with one pound. I'm like that beggin strips dog.
    Salk SoundScape 8's * Audio Research Reference 3 * Bottlehead Eros Phono * Park's Audio Budgie SUT * Krell KSA-250 * Harmonic Technology Pro 9+ * Signature Series Sonore Music Server w/Deux PS * Roon * Gustard R26 DAC / Singxer SU-6 DDC * Heavy Plinth Lenco L75 Idler Drive * AA MG-1 Linear Air Bearing Arm * AT33PTG/II & Denon 103R * Richard Gray 600S * NHT B-12d subs * GIK Acoustic Treatments * Sennheiser HD650 *
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  • xschop
    xschop Posts: 5,652
    Going to double up on my nattokinase and niacinamide.
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  • xschop
    xschop Posts: 5,652
    Another midnight run. Detoxing from all the triglycerides.
    Got one done. Had to dremel each slot corresponding to where Polk drilled each PR attachment hole. A couple were slightly off from each other. Joy...
    I can't see the black PR thru it was goal...

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  • Gardenstater
    Gardenstater Posts: 4,854
    I hope you aren't forced to only play AWB Average White Band on these 🤣

    Looking forward to the Too Much Rope test.......
    George / NJ

    Polk 7B main speakers, std. mods+ (1979, orig owner)
    Martin Logan Dynamo sub w/6ft 14awg Power Cord
    Onkyo A-8017 integrated
    Logitech Squeezebox Touch Streamer w/EDO applet
    iFi nano iDSD DAC
    iPurifier3
    iDefender w/ iPower PS
    Custom Steve Wilson 1m UPOCC Interconnect
    iFi Mercury 0.5m OFHC continuous cast copper USB cable
    Custom Ribbon Speaker Cables, 5ft long, 4N Copper, 14awg, ultra low inductance
    Custom Vibration Isolation Speaker Stands and Sub Platform
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  • xschop
    xschop Posts: 5,652
    That's Antique White Band material right there.
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  • xschop
    xschop Posts: 5,652
    edited June 10
    Was on fence, so went with @VR3 suggestion for magnet attachment since I'll be listening to them with grills off most the time. Polk relied HEAVILY on the larger plastic grill pegs compression as their drilling/matching of grill holes to baffle peg centers were also not accurate.

    3/8" cylindrical neodymiums glued in countersurface by @1/8 depth so I can fill and hide them.

    Just remembered why I preferred metal shop over wood shop. A lot of prep work. I decided to give them a 1/16" round over for looks and better paint adhesion.

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    @F1, forgot I had this tucked away from the shop speaker build years ago... Will fill in the mag holes...

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    Post edited by xschop on
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  • F1nut
    F1nut Posts: 52,138
    I've never used that product.
    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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  • pitdogg2
    pitdogg2 Posts: 27,537
    F1nut wrote: »
    I've never used that product.

    I've used it several times. It worked very good for my projects.
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  • xschop
    xschop Posts: 5,652
    Takes a couple hours to fully dry being water based, but equivalent to bondo on hardness I remember...

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    While that's drying, prepping Erse inductors so there's no vibes going on as they only mount with 2 small screws...

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  • xschop
    xschop Posts: 5,652
    Can barely see the indention of the magnets. Should only need a 2nd coat of primer then light sand and they are incognito...

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  • xschop
    xschop Posts: 5,652
    Forgot to mention I had a bacon, egg, and cheese biscuit for breakfast. :D
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  • xschop
    xschop Posts: 5,652
    Final fill of all dimples....and 400 grit sand tomorrow then final primer....

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    These little guys are heavy and can still pick up with the cross-brace and shake....

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  • Tony M
    Tony M Posts: 11,853
    You HULK'n out? :p

    Why do you have to shake them?
    Most people just listen to music and watch movies. I EXPERIENCE them.

    “Anger is an acid that can do more harm to the vessel in which it is stored than to anything on which it is poured.”
    --Mark Twain.

    “If at first you don't succeed, then skydiving definitely isn't for you.” - Steven Wright
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  • xschop
    xschop Posts: 5,652
    edited June 12
    Shook out the drywall crumbs and demonstrated brace/Powergrab effectiveness B)

    Not needed here, but a set of reinforcement semi-rings would only need to go left/right top of the MWs in any CRS without a brace.
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  • xschop
    xschop Posts: 5,652
    Final sand and test fitment. The 3/8" barrel neodymiums are solid...
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  • xschop
    xschop Posts: 5,652
    Think just a pint of cabinet grade paint will cover these CRS+ 2X coats? Got to stop by Sherwin Williams and get that builder's discount lol.

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    Wife says she wants the slight orange peel texture to match as well...Easy Peasy I say...

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  • VR3
    VR3 Posts: 29,626
    Looking awesome

    I for one want a video of you shaking the enclosure
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • xschop
    xschop Posts: 5,652
    Two days of prep work calls for 2 days of Bacon @pitdogg2 B)

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  • xschop
    xschop Posts: 5,652
    Final coat of flat-white primer just for the driver insets...

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  • xschop
    xschop Posts: 5,652
    edited June 12
    Found 1/4 gallon tucked away from last home touch-up. 1st coat and I like that hue....

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  • Toolfan66
    Toolfan66 Posts: 18,283
    Would look better with Red, White, and Black Stripes.. :D LOL!!

    Looks good Rob..
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  • xschop
    xschop Posts: 5,652
    edited June 12
    I think a Megadeth sticker would set these off right. :D

    Thanks Larry. More WAF friendly than the Billet 5Jrs B)
    Post edited by xschop on
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