CRS+ RestoMod

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  • F1nut
    F1nut Posts: 52,141
    Any plans to clear coat the brass?
    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: 27,542
    edited May 25
    F1nut wrote: »
    Any plans to clear coat the brass?
    Give it a few weeks, it will clearly be coated with Verdigris
    😉
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  • xschop
    xschop Posts: 5,655
    edited May 25
    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.

    I went with a full 6" diameter and drilled the cabinet fasteners further out to brace the rear of cabinet that much more.
    These things are heavy.

    It's lunch time.Going get myself a chicken bacon sandwich.
    Happy Memorial Day friends...





    Post edited by xschop on
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  • xschop
    xschop Posts: 5,655
    pitdogg2 wrote: »
    F1nut wrote: »
    Any plans to clear coat the brass?
    Give it a few weeks, it will clearly be coated with Verdigris
    😉

    Ivan, I have some old machined 360 brass part offs and it hasn't oxidized much. The alloy is almost like day one from years ago...The OG shop speakers have taken a lickin' no doubt. Still jazzin'....

    m7s4k9fvhj03.jpg
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  • pitdogg2
    pitdogg2 Posts: 27,542
    I have no doubt. I was being a smartypants
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  • F1nut
    F1nut Posts: 52,141
    edited May 25
    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.

    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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  • dkfreebird
    dkfreebird Posts: 1,188
    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
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    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: 5,655
    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.
    Don't take experimental gene therapies from known eugenicists.
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  • xschop
    xschop Posts: 5,655
    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.
    Don't take experimental gene therapies from known eugenicists.
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  • xschop
    xschop Posts: 5,655
    Fixed the 2 traces that had half their tracks deleted when drilled from factory...

    8pcfe1123mil.jpg


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  • xschop
    xschop Posts: 5,655
    Almost forgot I ordered fresh open-cell foam...

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  • Gardenstater
    Gardenstater Posts: 4,855
    edited May 29
    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
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    Logitech Squeezebox Touch Streamer w/EDO applet
    iFi nano iDSD DAC
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    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: 5,655
    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: 29,626
    edited May 29
    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

    0x0v3k2r2cb8.jpg
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • xschop
    xschop Posts: 5,655
    edited May 29
    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: 5,655
    Comprende....

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  • xschop
    xschop Posts: 5,655
    edited May 30
    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....

    onin1169ds17.jpg

    y539og0l7yb6.jpg

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  • xschop
    xschop Posts: 5,655
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  • xschop
    xschop Posts: 5,655
    edited May 31
    Started left channel Enclosure last night...Gallagher Mansion had plenty of black paint....Plenty enclosure glue as usual too...

    upb0hbicah94.jpg

    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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    Post edited by xschop on
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  • xschop
    xschop Posts: 5,655
    I'll peel the vinyl tonight with heat gun as that will speed up
    the curing process of the Flex Seal...

    fbtkw0iagbr3.jpg

    qa0fpeh81k16.jpg

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  • xschop
    xschop Posts: 5,655
    edited May 31
    Upgrading stickers lol...
    0.020" thick paper...

    l1yqwknfzok9.jpg
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  • xschop
    xschop Posts: 5,655
    Think I'm going with this finish...

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  • xschop
    xschop Posts: 5,655
    Matching plugs....

    146nwte2kg6p.jpg
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  • SCompRacer
    SCompRacer Posts: 9,147
    edited May 31
    Very nice! Looks like I have the model for that! :D Mods, it's only a thermos, not an artillery shell.

    5njewoh5ezrd.jpg


    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: 5,655
    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...

    s0sqs3hpinda.jpg

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  • BlueBirdMusic
    BlueBirdMusic Posts: 2,919
    @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
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  • xschop
    xschop Posts: 5,655
    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: 5,655
    Parting shot before the epidermis is scalped. Do like the old school look. Real Walnut or Mahogany would be peachy...

    5s7iavxp2ya5.jpg
    Don't take experimental gene therapies from known eugenicists.
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  • Gardenstater
    Gardenstater Posts: 4,855
    edited June 2
    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: 5,655
    edited June 2
    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.

    8182g82lrbs8.jpg






    Don't take experimental gene therapies from known eugenicists.
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