Billet RD-0194/8 tweeter plate design.

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  • F1nut
    F1nut Posts: 50,494
    Rob has been a busy boy.
    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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  • xschop
    xschop Posts: 5,000
    Another beautiful anodization job. Also looking forward to your CRS+ install impressions.

    Don't take experimental gene therapies from known eugenicists.
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  • xschop
    xschop Posts: 5,000
    Toolfan66 wrote: »
    Where did my picture go?

    Where's your install pics? Got to build another 1-piece X-over plate to match tweeters and the red anodized is popular.
    Don't take experimental gene therapies from known eugenicists.
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  • Toolfan66
    Toolfan66 Posts: 17,220
    xschop wrote: »
    Toolfan66 wrote: »
    Where did my picture go?

    Where's your install pics? Got to build another 1-piece X-over plate to match tweeters and the red anodized is popular.

    Let me see what I have, if not I will take some new pics, I have the 1.2's pulled from the system at the moment.
    I personally think the red looks the best, I have tried other colors, and they just looked horrible on a speaker, red or black is where it's at IMO..
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  • F1nut
    F1nut Posts: 50,494
    Flash
    9k57pjtds6cm.jpg

    No flash
    bocdxmc7qbcl.jpg

    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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  • xschop
    xschop Posts: 5,000
    Damn, they exist. ;)
    Don't take experimental gene therapies from known eugenicists.
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  • xschop
    xschop Posts: 5,000
    xschop wrote: »
    Last tidbit detail. I machined the coil lead channels to accommodate any common 1/2" wide electrical tape.(White tape used as reference) Simply snip 1.25" lengths for each side and place over wire lead while slightly overlapping silk dome fabric.....

    cx9dl0m81ag9.jpg

    ndm779au8o95.jpg

    dex321e0qnh0.jpg


    Bump for those asking about the swap procedure...

    Don't take experimental gene therapies from known eugenicists.
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  • xschop
    xschop Posts: 5,000
    Bumping for @Tonofuns
    Don't take experimental gene therapies from known eugenicists.
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  • xschop
    xschop Posts: 5,000
    If anyone wants a set in solid bronze, chime in so I can price a group-buy on these. I can start them around 1st Oct.
    Don't take experimental gene therapies from known eugenicists.
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  • drop1
    drop1 Posts: 16
    edited September 19
    I would be interested in 2 for my SDA 2b (RD0198) if it's not too much trouble. If available for a forum newb, that is.
    Post edited by drop1 on
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  • F1nut
    F1nut Posts: 50,494
    drop1 wrote: »
    I would be interested in 2 for my SDA 2b (RD0198) if it's not too much trouble. If available for a forum newb, that is.

    https://forum.polkaudio.com/discussion/196214/billet-rd-0194-8-tweeter-bezels/p3#latest
    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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  • xschop
    xschop Posts: 5,000
    I do still have that single pair left. Welcome aboard. Pic/s of the newbie-2B's?
    Don't take experimental gene therapies from known eugenicists.
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  • pitdogg2
    pitdogg2 Posts: 25,411
    xschop wrote: »
    If anyone wants a set in solid bronze, chime in so I can price a group-buy on these. I can start them around 1st Oct.

    I'm curious as to the cost for 6 myself. Probably double the cost of aluminium.
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  • xschop
    xschop Posts: 5,000
    edited September 19
    An all-bronze edition of CRS+ or 2B's with the bronze Polk insignias would be show-stoppers.
    Don't take experimental gene therapies from known eugenicists.
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  • drop1
    drop1 Posts: 16
    xschop wrote: »
    I do still have that single pair left. Welcome aboard. Pic/s of the newbie-2B's?

    92bpgghqnkhu.jpg

    I may have been here for longer than I'm letting on. Full 'DIY, Mods & Tweaks' suite is soon to be in progress. Still in the planning phase currently.
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  • xschop
    xschop Posts: 5,000
    edited September 19
    Now we're talkin'. I see @Gardenstater mod on the horizon?
    Don't take experimental gene therapies from known eugenicists.
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  • drop1
    drop1 Posts: 16
    xschop wrote: »
    Now we're talkin'. I see @Gardenstater mod on the horizon?

    Which mod would that be?

    Currently my list is as follows: (copied directly from my notes)
    Re-seal cabinets
    Glue driver magnets
    Dynamat baskets
    Hurricane nuts
    Replace gaskets
    Black hole 5
    Outriggers
    Crossover
    TL Mod
    Polyswitch Jump
    SDA Circuit Inductor
    Replace tweeter
    Internal wiring
    Binding posts
    Interconnect cable/socket
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  • xschop
    xschop Posts: 5,000
    What a vanilla welcome, dumped your post right off the bat... SMH.

    You're in good hands here, looking forward to your build. If there is not an inner brace to the bottom PR cabinet area, I'd put that on the list too. No amount of BH-5/No-Rez will fix the immediate reflections of the basket frames. I believe this is why some folks say the 2B's are "shouty". Here's the solution....

    https://forum.polkaudio.com/discussion/195562/must-try-mod-foam-inside-the-stamped-steel-baskets-yes/p1
    Don't take experimental gene therapies from known eugenicists.
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  • F1nut
    F1nut Posts: 50,494
    Having owned 2B's for 36 years I can tell you they are not shouty. However, the SL2000 is nasty. The RD0194 or RD0198 will fix that issue. Therefore, no need to ruin the mid-drivers by adding foam inside the basket.
    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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  • xschop
    xschop Posts: 5,000
    edited September 19
    I guess some folks process distortion as colorful midrange. It's interesting, I also found that the last set of my 5 Jr's were a little "shouty" until I added the frame foam. The 194's are blah unless you install metal plates.
    Don't take experimental gene therapies from known eugenicists.
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  • drop1
    drop1 Posts: 16
    Well, thankfully, I was just able to add an additional modification to my list. Purchased a pair of @xschop's alloy tweeter bezels. I now have what will be a piece of SDA modders history. There are a few that I'm sad to have missed out on like Larry's Rings and Gimpod PCBs.

    I also have two very long threads to read about potential additional modifications. @Gardenstater's PR basket foam and @xschop's MW phase-plugs. I'm a tad cautious of both.

    In terms of the PR foam, I'm a tad cautious of over-dampening. I'll be performing the near entire forum approved mod suite to my 2b's all at once. But those two may need to come later. Unless the thread xschop linked can change my mind. Hopefully I can have everything done by the end of this Winter.
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  • plastic_avatar
    plastic_avatar Posts: 708
    @drop1 No PR foam, just Dynamat-like material on the outside of the baskets.

    Remind me, what model are the stereo and dimensional drivers in your model?
    The Thrifty Setups in Mah House Big thrifty stereo in the basement w/ my custom SDA-1C (built with help from kind forum members) * Beautiful 1966 MCM GE console upgraded w/ Bluetooth, Dual turntable, and Paradigm speakers in family room * Swanky 1980 Realistic system and great TEAC eq with dancing colored lights in the living room * custom 5B on a system for my Dad * Ye Olde college stereo in the garage
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  • drop1
    drop1 Posts: 16
    plastic_avatar wrote: »
    @drop1 No PR foam, just Dynamat-like material on the outside of the baskets.

    Remind me, what model are the stereo and dimensional drivers in your model?

    That's what I'm leaning toward. I don't know if I want to stray too far from the SDA Handbook/Polk engineer approved modifications quite yet. These will be my primary (and likely only) modified SDAs. I do have a tad experience with Vintage Polks already however. My entry into vintage Polk was via a pair of 1982 Monitor 4a's (SL1500 peerless tweeter; MW6500 driver) that I found at a thrift store for $13. Now fully modified.

    My 2b's have MW6503 (Stereo) and MW 6511 (dimensional) drivers.
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  • Gardenstater
    Gardenstater Posts: 4,455
    edited September 20
    SL1500 Peerless is a non sequitur :)

    Define "fully modified" :) I agree with doing the standard mods first and always. Those 4As would be a perfect test bed for uber mods.*

    *One person did Armacell inside the frame on those and reported great results. Their name escapes me at the moment. <<@JayMX page 6 of my thread

    Post edited by Gardenstater on
    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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  • drop1
    drop1 Posts: 16
    Gardenstater wrote: »
    SL1500 Peerless is a non sequitur :)

    On second look, yes, I am incorrect about this. It's one of those early Danish peerless tweeters. I guess they don't have a model naming sequence.
    Gardenstater wrote: »
    Define "fully modified" :) I agree with doing the standard mods first and always. Those 4As would be a perfect test bed for uber mods.*

    I knew I'd be in trouble here. It was too late to edit once I realized. Ok, they're only partially modified. Sonicap caps, Vishay mills resistor, replaced internal wiring, jb weld on the driver magents, dynamat on the driver basket. Might throw a little BH5 in there if I have any spare. I.e. they're 'modified'. I'm not sure I want fully modified. I like the 4a as a 4a.
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  • pitdogg2
    pitdogg2 Posts: 25,411
    Look like this one?

    https://www.ebay.com/itm/256287482501?
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  • drop1
    drop1 Posts: 16
    edited September 20
    pitdogg2 wrote: »
    Look like this one?

    No. Here's a pic of it. Don't mind the dust. This picture was taken right after I recovered them from the GoodWill store. No compaints here. Probably my best thrift store find. And I've had a few good ones in my limited experience.

    9na9xav7b9we.jpg
    fvrgrxxl8vnl.jpg

    When I made the post I was referencing what I saw listed on the PolkSDA(dot)com page

    And based on another search, It looks like there is no visual distinction between the USA made peerless tweeter and the Danish made peerless tweeter. Going off the serial # (starts with 5514), mine is actually a USA made peerless tweeter. I'm wrong again... The speaker itself is dated July 1982 per the crossover.

    I absolutely love these little speakers. They sound fantastic in the small nook of my basement that I use as a home gym.
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  • drop1
    drop1 Posts: 16
    These are now due a few more mods. :D

    Sorry for flooding your billet tweeter thread with 4a content, @xschop :)
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  • Gardenstater
    Gardenstater Posts: 4,455
    He doesn't mind I'm sure. If I found those in a Goodwill, especially for that price, I'd pounce on them! Worthy of more mods for sure, as much as you want to do.

    I don't think we really know how to tell if a Peerless KO10DT is made in USA or Denmark. Maybe if the magnet screws are metric vs. SAE, but don't know for sure. Having a "Made In USA" is another way. I've seen 7514s with Made In USA on them by the way.
    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: 5,000
    Mod or die. B)

    I'd say do the full-monty on the 4a's, step-by-step and judge for yourself.
    A must for those 4A's would be the masking tape mod on those dusty domes.
    Don't take experimental gene therapies from known eugenicists.
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