CRS+ RestoMod

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  • dkfreebird
    dkfreebird Posts: 1,189
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    m0h6magcjvm5.jpeg
    What I picked up from you look the same. The speakers I dropped off not so much.🤣 I can’t wait to see the finished product. Great work.
    2 Channel
    Polk 1.2tl's Modded with dreadnought
    Musical Fidelity M6Si
    Eversolo Dmp 8
    SVS SB3000 sub

    Oppo 103
    Pangea PC
    Wireworld Equinox 7 interconnects
    Wireworld Equinox 7 Speaker Cables and Jumpers

    Backups 2.3tl, Crs+ pin/blade with stands.Monitor 5&7 peerless,Polk R200,Usher CP6311.McCormack Dna 0.5 Deluxe McCormack Dna 1,Dared Sl 2000A,Dayens Ampino,Rogue Magnum 66 pre
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  • xschop
    xschop Posts: 5,878
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    F1nut wrote: »
    xschop wrote: »
    F1nut wrote: »
    Any plans to clear coat the brass?

    I'm doing a finer grit now, and then scotchbrite pad. Then I'll use Mothers diatomaceous. On 360 grade brass, should maintain its luster for a long time.

    Ok, well a few other options are lacquer for brass or Renaissance wax

    https://www.woodcraft.com/products/mohawk-lacquer-for-brass-gloss-aerosol-13-oz

    Edit: If you use the spray lacquer be sure to clean the brass first with a degreasing agent.

    Ill check out the wax. Once I settle on patina matched to RDO plates. Will do face operation next.
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  • xschop
    xschop Posts: 5,878
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    dkfreebird wrote: »
    m0h6magcjvm5.jpeg
    What I picked up from you look the same. The speakers I dropped off not so much.🤣 I can’t wait to see the finished product. Great work.

    Another reason we need a "badass" button.
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  • xschop
    xschop Posts: 5,878
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    Fixed the 2 traces that had half their tracks deleted when drilled from factory...

    8pcfe1123mil.jpg


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  • xschop
    xschop Posts: 5,878
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    Almost forgot I ordered fresh open-cell foam...

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  • Gardenstater
    Gardenstater Posts: 4,960
    edited May 29
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    Looks like it has an embossed surface like the BH5? Is it adhesive backed?
    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: 5,878
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    Yes and yes. It's what I'll use to make the custom double-backed stand offs in these CRS. No cones this time lol.....

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  • VR3
    VR3 Posts: 29,752
    edited May 29
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    The 3/4 sonic barrier is actually a very good product. The 1/2 and the one larger is missing the layers that make the 3/4 a stand out.

    The adhesive on the sonic barrier line is terrible though, I always apply power grab to the back if I'm using that

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    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • xschop
    xschop Posts: 5,878
    edited May 29
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    Guess I should have said back-to-back, as a layer of 1/8" butyl mat will be sandwiched between the two opposing layers and suspended in center of cabinets.
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  • xschop
    xschop Posts: 5,878
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    Comprende....

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  • xschop
    xschop Posts: 5,878
    edited May 30
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    1/8" thick PVA foam spray glued to 1/8" thick dense felt for the @Gardenstater foam frame mod. Will cut to 1.25" x 1.25" squares. This will make positioning easy with Powergrab....

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  • xschop
    xschop Posts: 5,878
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  • xschop
    xschop Posts: 5,878
    edited May 31
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    Started left channel Enclosure last night...Gallagher Mansion had plenty of black paint....Plenty enclosure glue as usual too...

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    Wish they used same glue on their magnets... Heat gun on low and slow blade peel. Luckily didn't tear them....
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  • xschop
    xschop Posts: 5,878
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    I'll peel the vinyl tonight with heat gun as that will speed up
    the curing process of the Flex Seal...

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  • xschop
    xschop Posts: 5,878
    edited May 31
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    Upgrading stickers lol...
    0.020" thick paper...

    l1yqwknfzok9.jpg
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  • xschop
    xschop Posts: 5,878
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    Think I'm going with this finish...

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  • xschop
    xschop Posts: 5,878
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    Matching plugs....

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  • SCompRacer
    SCompRacer Posts: 9,401
    edited May 31
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    Very nice! Looks like I have the model for that! :D Mods, it's only a thermos, not an artillery shell.

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    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: 5,878
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    Each driver gets the 3 extra tabs cut off and terminals bent upward away from windows, with downward fastons removed....and superglue to lock the tabs tight. Haven't ran into a driver yet that were snug...

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  • BlueBirdMusic
    BlueBirdMusic Posts: 3,136
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    @xschop every time I read one of your posts on this thread (and others), this song pops into my mind:

    The Rolling Stones "Time is On My Side"
    https://www.youtube.com/watch?v=jOxHsuV83KA
    "Sometimes you have to look to the past to understand where you are going in the future"
    Harry / Marietta GA
    m9iutt1ly1yd.png
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  • xschop
    xschop Posts: 5,878
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    BlueBirdMusic wrote: »
    @xschop every time I read one of your posts on this thread (and others), this song pops into my mind:

    The Rolling Stones "Time is On My Side"
    https://www.youtube.com/watch?v=jOxHsuV83KA

    Keith Richards must have wrote that one lol.
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  • xschop
    xschop Posts: 5,878
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    Parting shot before the epidermis is scalped. Do like the old school look. Real Walnut or Mahogany would be peachy...

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  • Gardenstater
    Gardenstater Posts: 4,960
    edited June 2
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    Looks great! Will the lower conductivity of the brass be a factor in the shorting ring effect of the phase plug? Or will the eddy currents not be affected all that much, it being such a large chunk of metal? I know it is too late but it might've been cool to press on a ring of copper at the base, where it wouldn't even be visible.

    Also, although probably not the look you want here, this could be another option that is now possible, that isn't possible with aluminum:

    1622h6r7oryl.jpg
    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: 5,878
    edited June 2
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    The brass will illicit less eddy currents than the alloy for sure. Will it matter? Not sure. But the real unknown (for me) right now is if the alloy focus ring/brass plug will exhibit the same excellent cone control behavior that the alloy ring and alloy plug do.
    I'll do a tone sweep on the bench, but that's free-air. Mounted in the enclosure is propper to see the behavior.

    I have all summer to experiment. I'm more excited to hear these back-chambered RDOs in the CRS+. Why Polk didn't add this feature, like they did to the SL3000's was a serious faux pax.

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  • xschop
    xschop Posts: 5,878
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    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....

    pgyypl6a7gnc.jpg
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  • xschop
    xschop Posts: 5,878
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    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...

    q3f2g4pxxav5.jpg

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  • xschop
    xschop Posts: 5,878
    edited June 3
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    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: 5,878
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    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: 5,878
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    Filled the seams before sanding this time....

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  • xschop
    xschop Posts: 5,878
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    @pitdogg2 ...Only mod going on today. I upgraded my chicken and waffles to added bacon....

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