SL2000 Question

bobman7
bobman7 Posts: 55
edited January 2010 in Vintage Speakers
So, I recently got some monitor 5s, one was missing the tweeter so I ordered another off the forums here. Got it in today, and I noticed that the plastic dome is glued down around the edge, while the one that came with the speakers themselves is not glued/has come unglued. now, the unglued one still works, but it seems to be much less bright than the new one. Is it possible to adhere it myself, and if so what kind of adhesive do you recommend? Or should I just live with it until I decide to upgrade to rdo's?
2 Ch Rig
RTA12B
Audio Research D-90
Nikko Beta III
Harman/Kardon FL8450
Computer Rig
Monitor 5
Yamaha RX-500u
Post edited by bobman7 on

Comments

  • kcoc321
    kcoc321 Posts: 1,788
    edited September 2009
    is the "glue down" look like this? Or does it look "aftermarket"
    attachment.php?attachmentid=43223&d=1253119366
    SL2000_front1.jpg

    FYI: I "tried" to glue down the dome on one of mine, when it 'tweeked' and it didn't work'
  • bobman7
    bobman7 Posts: 55
    edited September 2009
    it looks like one of those...says polk audio on the top and everything.
    2 Ch Rig
    RTA12B
    Audio Research D-90
    Nikko Beta III
    Harman/Kardon FL8450
    Computer Rig
    Monitor 5
    Yamaha RX-500u
  • kcoc321
    kcoc321 Posts: 1,788
    edited September 2009
    What about this "glued down" one? If you look at those, there is not any glue evident, as the domes are cleanly fused down. I am wondering if the one you got was just 'jerry-rigged'
    Maybe best to post a pic if you can.
  • bobman7
    bobman7 Posts: 55
    edited September 2009
    well, i didn't mean glued so to speak, just that it is not loose like the one I already had. It looks very clean and such. No camera available unfortunately.
    2 Ch Rig
    RTA12B
    Audio Research D-90
    Nikko Beta III
    Harman/Kardon FL8450
    Computer Rig
    Monitor 5
    Yamaha RX-500u
  • bluecomet
    bluecomet Posts: 1,118
    edited September 2009
    Your tweeter came out of a SDA CRS+ speaker. The SL2000's are funny. Some age better than others. I recently pick up a SDA SRS 1.2 set with the original SL2000's and they sound fine. I also have an original SDA SRS set and I will be changing them out to RDO 194's because I don't like the sound as much at high volume as the 1.2's SL2000's. I would wait until you have the funds to upgrade to RDO 194's and do both speakers at the same time, so they can be sonically matched.
    Polk HT system 1: LSIC, LSI25 mains, LSI F/X rears, Lsi F/X rear centers,
    Yamaha RX-V2500 System, Carver A753 3 channel amp.

    Polk HT system 2: , SRT system with f/x 1,000's rear speakers on 7.1 system currently using Onkyo TX-RZ820 receiver, powered by Sunfire Grand Theater amp

    Polk Speaker collection: SDA SRS 1.2tl x 2, SRT system, SDA SRS 2 P/B, SDA 2A, SDA 1C Studio, SDA CRS+, Monitor 7B & 4, SRS 3.1tl, RTA 15tl, LS90, LSI 9
  • AFEuphman
    AFEuphman Posts: 55
    edited January 2010
    So... I know that this thread is a little old, but, I've been working on an SDA-CRS+ that suffered a bad fall for a long time now. I've gotten the innards all put back together and have been REALLY enjoying what seems to be a truly awesome 2 channel sound! BUT... the SL2000 tweeter is buzzing on certain upper-mid range frequencies. I have a Jiggs Wigham bone and piano disc that REALLY makes that buzz apparant. It's kind of driving me crazy...

    After spending most of the day fussing with cabinets and the inner connections, I determined that the plastic/mylar/whatever clear dome is not fully attached and is vibrating where it should be "glued."

    Does anyone know what adhesive was originally there? Could I dissasemble the tweeter and run a teensy bead of something there to stick it back in place?

    Anyway, thanks for the info! Soooooo excited to get these speakers fully operational!
  • F1nut
    F1nut Posts: 50,753
    edited January 2010
    Replace your SL2000's with RD0194-1's or do the TL upgrade and use the RD0198-1's. You can thank me later.
    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

  • ben62670
    ben62670 Posts: 15,969
    edited January 2010
    Another vote for the TL upgrade with the RDO 198's.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben
  • AFEuphman
    AFEuphman Posts: 55
    edited January 2010
    You know, that's what I'm going to do in the not-too distant future. In fact, I've pretty much decided to go the 198 route. It seems that the 194s may remove a little of the "presence" (if that's the right word) that I like having with the SL 2000s. These speakers seem smooth and dark enough as they are, so If the 194's add to that, it might be a little to much for me! :) Maybe it's my tiny ear canals... oh, I haven't told you about that?

    I've got lots of questions about all the upgrades, too, but in the meantime, I was hoping to eliminate the buzz in this one SL2000 (if possible). I've actually thought about just tearing off the dome, since I will be replacing the tweeter in some fashion in a few months (I'm going to deploy for a little while and it will be upgrade city when I get back; caps, tweets and all!!!) I'm very excited!

    Anyway, thanks for the vote of confidence in the later upgrade! Now, where are my pliers...
  • geppy1
    geppy1 Posts: 3,075
    edited January 2010
    A few of us spent 2 hours the other night comparing RDO194s to SL2000s in a pair of 1Cs . The vote went to the 2000s in this system. More natural, . More extention, bigger stage, more transparent. Your milage may vary. Often if you undo the four center screws slightly and play some heavy piano or female voice loud whilte holding the tweeter in your hand , you can move the VC around in the gap until it sound clean. Then tighten the screws. I have done it often. Takes patience. keith
  • Tony M
    Tony M Posts: 11,189
    edited January 2010
    I reglued a sl2000 dome back down with superglue GEL. The sound cleaned right up after a 24 hr. setting time.

    That moving the magnet around the voice coil sounds pretty cool. I didn't know we could but now I do.Thanks.
    Most people just listen to music and watch movies. I EXPERIENCE them.
  • Face
    Face Posts: 14,340
    edited January 2010
    geppy1 wrote: »
    A few of us spent 2 hours the other night comparing RDO194s to SL2000s in a pair of 1Cs . The vote went to the 2000s in this system. More natural, . More extention, bigger stage, more transparent. Your milage may vary. Often if you undo the four center screws slightly and play some heavy piano or female voice loud whilte holding the tweeter in your hand , you can move the VC around in the gap until it sound clean. Then tighten the screws. I have done it often. Takes patience. keith
    What was the associated gear?
    "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche
  • geppy1
    geppy1 Posts: 3,075
    edited January 2010
    Amps Bel Canto eVo II gen II, and an Exposure 2010S. CD Sony SCD XA 777ES, Analysis Plus Oval 9 wire and Cardas Neutral Reference IC. In other words reall good stuff. As a said mileage may vary. Others on here have made similar comments so I am not alone. The SL2000 may age badly or something. By the way the 13,000HZ peak is in the crossovers not the tweeter. keith
  • F1nut
    F1nut Posts: 50,753
    edited January 2010
    By the way the 13,000HZ peak is in the crossovers not the tweeter.

    Not according to Polk and it's certainly not present with the RD0194-1's.
    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

  • geppy1
    geppy1 Posts: 3,075
    edited January 2010
    There is no question they (SL2000) have their issues. I got the above statement from the SDA Compandium
  • AFEuphman
    AFEuphman Posts: 55
    edited January 2010
    I had seen that too, but it seems lots of other info exists as well. It makes this whole upgrade process even a bit more confusing! Ah well, I think when I do the upgrade, I'll really dig in and just go straight to the RD0198-1's... I haven't researched it enough, but it seems that they may bring together the positives of the 194s and the SL2000s. I sure hope so, anyway!
    Anyhow, I tried taking my buzzing tweeter apart this afternoon... I really didn't understand how it was assembled until then! I just refoamed a pair of Boston Acoustics A60s from the 80's for a buddy, and it felt like I was doing it again... except in some upside-down fishbowlish way... :) I didn't realize that the windings (voice coil?) were attached to the clear plastic! That freaked me right out!
    I reglued (using toothpicks) the dome edges, but I'm pretty sure I didn't get the VC spacing back correctly, as it is buzzing even more... Oh well, another member has some that I'm hoping to get for replacement. Yet again, thanks to the forum!
    I'm going to continue to play with this tweeter, as I'm a tinkerer by nature... Thanks for the method and glue suggestion, keith and tony!
    John
  • AFEuphman
    AFEuphman Posts: 55
    edited January 2010
    HAAAAAA!!!! Geppy1, after rereading your post and thinking about it for a while, I just went downstairs and tried realigning the VC. Guess what? After about 10 minutes of messing with it... success! I can't believe it! Thanks again! Sooooo much nicer without the bumblebee in there. :)
    So... I've been listening to the same trombone/piano track over and over because it induced the buzzing. I finally allowed myself to play something else and, WOW, I'm so glad I took the time to fix up these speakers! Woo-hoo!
  • geppy1
    geppy1 Posts: 3,075
    edited January 2010
    It takes some care and careful listening but it can be done. keith