tweeter news

leftwinger57
leftwinger57 Posts: 2,917
edited August 2013 in Electronics
I just called Polk C/S to see what the procedure was for ordering the tweeters.I thought they were the rdo 198s and he said for 2bs they are Rdo-194s. In any event the rumor that they are on back order is absolutely true.They have neither in stock till late Oct at the earliest.I asked why such a backlog and he said they are a very popular drop in replacement.For me this actually good news so now I can save some cash and know they are not there yet anyway.
2chl- Adcom GFA- 555-Onkyo P-3150v pre/amp- JVC-QL-A200 tt- Denon 1940 ci cdp- Adcom GFS-6 -Modded '87 SDA 2Bs - Dynamat Ext.- BH-5- X-Overs VR-3, RDO-194 tweeters, Larry's Rings, Speakon/Neutrik I/C- Cherry stain tops Advent Maestros,Ohm model E

H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-

Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc
Post edited by leftwinger57 on
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Comments

  • michaeljhsda2
    michaeljhsda2 Posts: 2,184
    edited August 2013
    Only if you do the TL mod would you install the RD-0198's.
    SDA SRS 2.3TL's
    Silk Audio MS-90-BT integrated tube amp
    Yaqin MS-20L integrated tube amp
    SDA 2B TL's
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  • Big Dawg
    Big Dawg Posts: 2,005
    edited August 2013
    Just so this is clear: the drop in replacement for the sl2000 tweeter (the original tweeter in the SDA 2Bs) is the RDO194 tweeter.

    The drop in replacement for sl2500 and sl3000 is the RDO198.

    As MJ2 points out, if you do the TL crossover mod (highly recommended), you will need to use RDO198.
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  • leftwinger57
    leftwinger57 Posts: 2,917
    edited August 2013
    BigDAWG ,and others thanks for clearing this up for me. 194s it is for me.I have also been in touch w/ VR-3Mods and the way I'm going I don't believe any mention of the TL.I'm doing x-over and coil inductors, but if there is any confusion they said through e-mail they would answer any ? at any time. So far the response has been swift and very efficient.Clearly I want to get the right tweeters which will be first on my wish list and since neither are in stock I do have alot of time to dish it all out.
    2chl- Adcom GFA- 555-Onkyo P-3150v pre/amp- JVC-QL-A200 tt- Denon 1940 ci cdp- Adcom GFS-6 -Modded '87 SDA 2Bs - Dynamat Ext.- BH-5- X-Overs VR-3, RDO-194 tweeters, Larry's Rings, Speakon/Neutrik I/C- Cherry stain tops Advent Maestros,Ohm model E

    H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-

    Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc
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  • cnh
    cnh Posts: 13,284
    edited August 2013
    That's good to know. Going to need a pair for the Monitor 7s I recently picked up. In the meantime, and not to steal this thread; I noticed that the copper leads on my existing SL-2000 are exposed--in other words the silicon (or whatever that black gooey stuff is) that is dabbed across the plastic mount in the space the copper wire reaches to the plastic dome is gone on both sides of ONE tweeter.

    Somehow the thin copper wires are fine and shiny but I'm a little nervous about leaving them with nothing covering them. And I'm not sure how the coating could drop off without taking the copper wire with it but that's what happened.

    So "what" do I fill that space with? Home Depot silicon? Or....?

    And how do I get it to look "black"?

    cnh
    Currently orbiting Bowie's Blackstar.!

    Polk Lsi-7s, Def Tech 8" sub, HK 3490, HK HD 990 (CDP/DAC), AKG Q701s
    [sig. changed on a monthly basis as I rotate in and out of my stash]
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  • leftwinger57
    leftwinger57 Posts: 2,917
    edited August 2013
    Steal away , I got my answer ,yes there is G.E. black silicon and it comes w/ an applicator tip if you cut it just right you can use as little as possible.I am in no way saying to do this just talking about the silicon it'self.
    2chl- Adcom GFA- 555-Onkyo P-3150v pre/amp- JVC-QL-A200 tt- Denon 1940 ci cdp- Adcom GFS-6 -Modded '87 SDA 2Bs - Dynamat Ext.- BH-5- X-Overs VR-3, RDO-194 tweeters, Larry's Rings, Speakon/Neutrik I/C- Cherry stain tops Advent Maestros,Ohm model E

    H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-

    Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc
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  • cnh
    cnh Posts: 13,284
    edited August 2013
    leftwinger57 wrote: »
    Steal away , I got my answer ,yes there is G.E. black silicon and it comes w/ an applicator tip if you cut it just right you can use as little as possible.I am in no way saying to do this just talking about the silicon it'self.

    Many thanks,

    I'll look for that.

    cnh
    Currently orbiting Bowie's Blackstar.!

    Polk Lsi-7s, Def Tech 8" sub, HK 3490, HK HD 990 (CDP/DAC), AKG Q701s
    [sig. changed on a monthly basis as I rotate in and out of my stash]
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  • F1nut
    F1nut Posts: 50,567
    edited August 2013
    Your typical RTV silicone (i.e. GE black silicone) is an acetic acid cure, which is corrosive to electronics. Do NOT use it.
    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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  • cnh
    cnh Posts: 13,284
    edited August 2013
    F1nut wrote: »
    Your typical RTV silicone (i.e. GE black silicone) is an acetic acid cure, which is corrosive to electronics. Do NOT use it.

    Oh, good catch.

    Glad I checked back on this. I certainly don't want to take something out!

    Any suggestions on where to get a less corrosive silicon?

    Thanks,

    cnh
    Currently orbiting Bowie's Blackstar.!

    Polk Lsi-7s, Def Tech 8" sub, HK 3490, HK HD 990 (CDP/DAC), AKG Q701s
    [sig. changed on a monthly basis as I rotate in and out of my stash]
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  • F1nut
    F1nut Posts: 50,567
    edited August 2013
    Not off the top of my head. Maybe call Polk to check if anyone there knows what they used.
    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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  • nooshinjohn
    nooshinjohn Posts: 25,420
    edited August 2013
    cnh wrote: »
    Oh, good catch.

    Glad I checked back on this. I certainly don't want to take something out!

    Any suggestions on where to get a less corrosive silicon?

    Thanks,

    cnh

    I have seen black water-based caulking that looks like it might work well. My fear however is that it would not be as flexible as the rtv types.
    The Gear... Carver "Statement" Mono-blocks, Mcintosh C2300 Arcam AVR20, Oppo UDP-203 4K Blu-ray player, Sony XBR70x850B 4k, Polk Audio Legend L800 with height modules, L400 Center Channel Polk audio AB800 "in-wall" surrounds. Marantz MM7025 stereo amp. Simaudio Moon 680d DSD

    “When once a Republic is corrupted, there is no possibility of remedying any of the growing evils but by removing the corruption and restoring its lost principles; every other correction is either useless or a new evil.”— Thomas Jefferson
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  • leftwinger57
    leftwinger57 Posts: 2,917
    edited August 2013
    SEE, I'm glad I added my proviso for that one.Maybe go old school like they did w/ AR-3a and just put black tape across it. Great speaker but the ugliest grill off speaker besides a Dalquist out there.Again just kidding here do not take advice from me.
    2chl- Adcom GFA- 555-Onkyo P-3150v pre/amp- JVC-QL-A200 tt- Denon 1940 ci cdp- Adcom GFS-6 -Modded '87 SDA 2Bs - Dynamat Ext.- BH-5- X-Overs VR-3, RDO-194 tweeters, Larry's Rings, Speakon/Neutrik I/C- Cherry stain tops Advent Maestros,Ohm model E

    H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-

    Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc
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  • soundfreak1
    soundfreak1 Posts: 3,414
    edited August 2013
    Ck the for sale site as i just saw a pair of 194's for sale recently.
    Main Rig:
    Krell KAV 250a biamped to mid/highs
    Parasound HCA1500A biamped to lows
    Nakamichi EC100 Active xover
    MIT exp 1 ic's
    Perreaux SA33 class A preamp
    AQ kingcobra ic's
    OPPO 83 CDP
    Lehmann audio black cube SE phono pre, Audioquest phono wire (ITA1/1)
    Denon DP-1200 TT. AToc9ML MC cart.
    Monster HTS 3600 power conditioner
    ADS L1590/2 Biamped
    MIT exps2 speaker cable
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  • zingo
    zingo Posts: 11,258
    edited August 2013
    soundfreak1 wrote: »
    Ck the for sale site as i just saw a pair of 194's for sale recently.

    They do show up from time to time here, just move fast... :)
    Jake
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  • drumminman
    drumminman Posts: 3,396
    edited August 2013
    Found this with a quick google:

    http://www.americansealantsinc.com/asi-306-electronic-grade-silicone-sealant-adhesive/

    The copy states: "No acetic acid or other corrosive by-products are generated during its cure. Thus ASI 306 can be used in corrosion-sensitive electrical and/or electronic equipment with no adverse effect."
    "Science is suppose to explain observations not dismiss them as impossible" - Norm on AA; 2.3TL's w/sonicaps/mills/jantzen inductors, Gimpod's boards, Lg Solen SDA inductors, RD-0198's, MW's dynamatted, Armaflex speaker gaskets, H-nuts, brass spikes, Cardas CCGR BP's, upgraded IC Cable, Black Hole Damping Sheet strips, interior of cabinets sealed with Loctite Power Grab, AI-1 interface with 1000VA A-L transformer
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  • leftwinger57
    leftwinger57 Posts: 2,917
    edited August 2013
    Fast moves I can't do just don't have ready cash. I gots to do my way and start saving I have at least quite a few months before they are even in stock and as long as my originals hold out I'll be fine till then.I do appreciate the heads up and another alternative,really I do.
    2chl- Adcom GFA- 555-Onkyo P-3150v pre/amp- JVC-QL-A200 tt- Denon 1940 ci cdp- Adcom GFS-6 -Modded '87 SDA 2Bs - Dynamat Ext.- BH-5- X-Overs VR-3, RDO-194 tweeters, Larry's Rings, Speakon/Neutrik I/C- Cherry stain tops Advent Maestros,Ohm model E

    H/T- Toshiba au40" flat- Yamaha RX- V665 avr- YSD-11 Dock- I-Pod- Klipsch #400HD Speaker set-

    Bdrm- Nikko 6065 receiver- JBL -G-200s--Pioneer 305 headphones--Sony CE375-5 disc
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