Polk Audio RTiA9 Crossover modification

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  • pauled72
    pauled72 Posts: 3
    edited October 2021
    I have been following this thread for a while. question @VR3: Do you still do mods or are you not doing it anymore?
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  • VR3
    VR3 Posts: 28,610
    I still do mods for certain projects
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • gp4jesus
    gp4jesus Posts: 1,987
    gp4jesus wrote: »
    VR3 wrote: »
    Thank you!

    Acetal/delrin
    I figured non-conductive. Looks like aluminum and about as strong?
    where to buy that material?

    Looking to make binding post plates

    Samsung 60" UN60ES6100 LED Outlaw Audio 976 Pre/Pro Samsung BDP, Amazon Firestick, Phillips CD Changer Canare 14 ga - LCR tweeters inside*; Ctr Ch outside BJC 10 ga - LCR mids, inside* & out 8 ga Powerline: LR woofers, inside* & out *soldered LR: Tri-amped RTi A7 w/Rotels. Woofers - 980BX; Tweets & “Plugged*” Mids - 981, connected w/MP Premiere ICs Ctr Ch: Rotel RB981 -> Bi-amped CSi A6 Surrounds: Premiere ICs ->Rotel 981 -> AR 12 ga -> RTi A3. 5 Subs: Sunfire True SW Signature -> LFE & Ctr Ch; 4 Audio Pro Evidence @ the “Corners”. Power Conditioning & Distribution: 4 dedicated 20A feeds; APC H15; 5 Furman Miniport 20s *Xschop's handy work
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  • VR3
    VR3 Posts: 28,610
    https://www.eplastics.com/ACTLBLK0-25012X48?gclid=CjwKCAjw2vOLBhBPEiwAjEeK9m8qTFMtKwfuSY_EUTUs35l92ernchGXeLDZWdrkUwwoApwb7KWxKRoC74EQAvD_BwE
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • gp4jesus
    gp4jesus Posts: 1,987
    citation16 wrote: »
    So did you hear a difference with the dynamat on the speaker ?

    Yves
    I hope I caught you in time.

    I used Armacell. Did you obtain the material and apply any damping to your driver frames and magnet shields?

    Tap the shields lightly - they easily ring like bells thus all the drivers’ shields NEED Armacell or equivalent. The frames reflect mid and lower treble frequencies. The closure stuffing does NOT absorb or prevent reflection of those frequencies.

    HD & Lowe’s sells Armacell/pipe wrap*, and it’s cheap! Get some if you haven’t before you close up your speaker(s). If you have the patience apply some* on the frame behind the rear of driver cone - I’ve heard the diff.

    Apply either the Armacell*, Dynamat, or Secondskin to the larger portions between the rib bracing of your closure interior. These** may perform better than this* as they’re thicker, but they cost more. Regardless ANYTHING is better than nothing.

    You’ll thank me later…

    Tony
    Samsung 60" UN60ES6100 LED Outlaw Audio 976 Pre/Pro Samsung BDP, Amazon Firestick, Phillips CD Changer Canare 14 ga - LCR tweeters inside*; Ctr Ch outside BJC 10 ga - LCR mids, inside* & out 8 ga Powerline: LR woofers, inside* & out *soldered LR: Tri-amped RTi A7 w/Rotels. Woofers - 980BX; Tweets & “Plugged*” Mids - 981, connected w/MP Premiere ICs Ctr Ch: Rotel RB981 -> Bi-amped CSi A6 Surrounds: Premiere ICs ->Rotel 981 -> AR 12 ga -> RTi A3. 5 Subs: Sunfire True SW Signature -> LFE & Ctr Ch; 4 Audio Pro Evidence @ the “Corners”. Power Conditioning & Distribution: 4 dedicated 20A feeds; APC H15; 5 Furman Miniport 20s *Xschop's handy work
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  • gp4jesus
    gp4jesus Posts: 1,987
    VR3 wrote: »
    https://www.eplastics.com/ACTLBLK0-25012X48?gclid=CjwKCAjw2vOLBhBPEiwAjEeK9m8qTFMtKwfuSY_EUTUs35l92ernchGXeLDZWdrkUwwoApwb7KWxKRoC74EQAvD_BwE
    I forgot to ask: do you cut and trim your own plates?

    Thanks for the link. Tony
    Samsung 60" UN60ES6100 LED Outlaw Audio 976 Pre/Pro Samsung BDP, Amazon Firestick, Phillips CD Changer Canare 14 ga - LCR tweeters inside*; Ctr Ch outside BJC 10 ga - LCR mids, inside* & out 8 ga Powerline: LR woofers, inside* & out *soldered LR: Tri-amped RTi A7 w/Rotels. Woofers - 980BX; Tweets & “Plugged*” Mids - 981, connected w/MP Premiere ICs Ctr Ch: Rotel RB981 -> Bi-amped CSi A6 Surrounds: Premiere ICs ->Rotel 981 -> AR 12 ga -> RTi A3. 5 Subs: Sunfire True SW Signature -> LFE & Ctr Ch; 4 Audio Pro Evidence @ the “Corners”. Power Conditioning & Distribution: 4 dedicated 20A feeds; APC H15; 5 Furman Miniport 20s *Xschop's handy work
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  • VR3
    VR3 Posts: 28,610
    Yes I laser cut them
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • gp4jesus
    gp4jesus Posts: 1,987
    Just making’ binding post plates.

    Can I use a miter or table saw w/a blade that cuts wood?

    Or very fine teeth for metal going very slow?

    Thnx.



    Samsung 60" UN60ES6100 LED Outlaw Audio 976 Pre/Pro Samsung BDP, Amazon Firestick, Phillips CD Changer Canare 14 ga - LCR tweeters inside*; Ctr Ch outside BJC 10 ga - LCR mids, inside* & out 8 ga Powerline: LR woofers, inside* & out *soldered LR: Tri-amped RTi A7 w/Rotels. Woofers - 980BX; Tweets & “Plugged*” Mids - 981, connected w/MP Premiere ICs Ctr Ch: Rotel RB981 -> Bi-amped CSi A6 Surrounds: Premiere ICs ->Rotel 981 -> AR 12 ga -> RTi A3. 5 Subs: Sunfire True SW Signature -> LFE & Ctr Ch; 4 Audio Pro Evidence @ the “Corners”. Power Conditioning & Distribution: 4 dedicated 20A feeds; APC H15; 5 Furman Miniport 20s *Xschop's handy work
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  • VR3
    VR3 Posts: 28,610
    edited October 2021
    Acetal machines well but carbide bits will eventually overheat faster than in wood

    Table saw cuts well
    - Not Tom ::::::: Any system can play Diana Krall. Only the best can play Limp Bizkit.
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  • Ryande
    Ryande Posts: 1
    does anyone know the size of air core inductors used in upgraded crossover of RTiA9? in MH please
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  • proparts
    proparts Posts: 1
    Hi there
    How much are those vr3 crossovers upgrade for the rtia9
    Thanks
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  • F1nut
    F1nut Posts: 50,494
    edited August 10
    The quick answer, $$$$$.

    You should reach out directly to VR3 for a quote.
    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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