Dented tweeter?

Braddles
Braddles Posts: 228
edited February 2008 in Speakers
I am having a dispute:mad: with some one and i thought i would pose the ? to you people.

I have a B&W center speaker (4 now) and it has been dented by my 3 year old.

Is this the tweeter itself or just a dust cover???????:confused:

Cheers
2 Channel
Amp - Jas Audio Bravo 3.2 set
Power Cord - Tunami GPX
CDP - Marantz cd6002 - Audio gd Ref 5 Dac
Speakers - Tekton Lore,Polk Audio RTA11tl completely refreshed.
Post edited by Braddles on

Comments

  • Sherardp
    Sherardp Posts: 8,038
    edited January 2008
    Hard to tell without a pic.
    Shoot the jumper.....................BALLIN.............!!!!!

    Home Theater Pics in the Showcase :cool:

    http://www.polkaudio.com/forums/showcase/view.php?userid=73580
  • Braddles
    Braddles Posts: 228
    edited January 2008
    BTW cant tel any diff in sound.
    2 Channel
    Amp - Jas Audio Bravo 3.2 set
    Power Cord - Tunami GPX
    CDP - Marantz cd6002 - Audio gd Ref 5 Dac
    Speakers - Tekton Lore,Polk Audio RTA11tl completely refreshed.
  • john22614
    john22614 Posts: 214
    edited January 2008
    I had the same thing happen to one of my Monitor Radius 180 speakers and discovered that when I pressed lightly with my finger around the edges of the dent.....it popped out and went back to normal. I just had to work gently around the edges a little. The material is remarkably light and thin. This might work for you too. You might want to call B&W and see what they say. I was pleasantly surprised to discover how easy it was to fix. And, by the way, I didn't notice a sound difference either, but I hated the way it looked. I keep the grills on now. I don't know if it's a dust cover or the actual tweeter, but I am glad it's back to normal. It's part of a nice little second system I have in my den.
    B&W 804s mains
    B&W HTM4 center
    Polk PSW 1000 sub
    Outlaw 990 Pre Amp
    Anthem MCA 30 Amp
    Monitor Radius 180 surrounds
    Audiosource Stereo Amp for surrounds
    Denon 2910 Universal DVD/SACD Player
    Comcast DVR
    Pioneer Elite 42" Plasma 940 HD
    Harmony Universal Remote
    Blue Jeans interconnects and biwires
    Itunes Air Express
  • venomclan
    venomclan Posts: 2,467
    edited January 2008
    I went through this last year with my B&W center channel. I did not notice any difference in sound at all. B&W told me that the entire tweeter needed to be replaced ($107), even though it was just the dust cover. I replaced the tweeter, my dealer did it as a warranty exchange, and the new tweeter had a problem as the sound was off. So B&W sent me another tweeter that I installed and it was ok.

    My advice, if you hear no difference in sound then just keep it the way it is and put the grills on so there can be no damage. If you decide to sell the speaker down the road, get the replacement then.
    Venom
  • Yashu
    Yashu Posts: 772
    edited January 2008
    pic looks like an aluminum tweeter dented like a crushed coke can... not good.

    I could see how it wouldn't sound horrible with movies, I mean... it is still going to move back and forth to generate sound... just... well, the structural integrity of the dome is gone so lots of weird phase distortion from the weird walls, and then you get resonances that the dome structure was supposed to protect against. Basically, if you still think it's sounds ok, I suppose it depends on if it is "ok" enough or not. For me, it would not be ok, I would be sitting there figuring out how to put electric fencing around my listening room that would only allow me to pass through, or just order a replacement tweeter and tell little johnny if he does it again he is going to inherit crap someday and have to go off to college with speakers with broken tweeters that his friends will make fun of him for when they come by to play xbox5000? I don't know, hehe... I poked in a woofer when I was 4, and one day my father gave me his stereo and speakers. Good vintage stuff. I carefully unpoked it, refoamed them, and used them for years after. I was only like 10 at the time, but having them suddenly be "mine" made me suddenly not want to destroy them for no reason, but rather fix them and listen to Yes albums. I was a weird kid.

    Your kid has reached the speaker poking stage in his life... It's a good thing, actually, because I did it because they FASCINATED me. Here I am a reformed speaker poker and true to heart audiophile.

    I say get replacement tweeters, and then when your kid gets older, you will have something nice to hand down, with a story to tell, all while giving you a reason to upgrade, of course.
  • Early B.
    Early B. Posts: 7,900
    edited January 2008
    It's an easy fix. Try double-sided tape.
    HT/2-channel Rig: Sony 50” LCD TV; Toshiba HD-A2 DVD player; Emotiva LMC-1 pre/pro; Rogue Audio M-120 monoblocks (modded); Placette RVC; Emotiva LPA-1 amp; Bada HD-22 tube CDP (modded); VMPS Tower II SE (fronts); DIY Clearwave Dynamic 4CC (center); Wharfedale Opus Tri-Surrounds (rear); and VMPS 215 sub

    "God grooves with tubes."
  • jakelm
    jakelm Posts: 4,081
    edited January 2008
    Yashu wrote: »
    pic looks like an aluminum tweeter dented like a crushed coke can... not good.

    .


    You know how I fix it when I have a crushed beer can??????





















    ..I get another beer.. can you replace the tweeter with B&K?
    Monitor 7b's front
    Monitor 4's surround
    Frankinpolk Center (2 mw6503's with peerless tweeter)
    M10's back surround
    Hafler-200 driving patio Daytons
    Tempest-X 15" DIY sub w/ Rythmik 350A plate amp
    Dayton 12" DVC w/ Rythmik 350a plate amp
    Harman/Kardon AVR-635
    Oppo 981hd
    Denon upconvert DVD player
    Jennings Research (vintage and rare)
    Mit RPTV WS-55513
    Tosh HD-XA1
    B&K AV5000


    Dont BAN me Bro!!!!:eek:
  • kuntasensei
    kuntasensei Posts: 3,263
    edited January 2008
    Double-sided tape or scotch tape wrapped around a finger will probably pop that sucker back out. Doesn't take much. Either way, if you don't hear it and leave the grilles on, don't worry about it.
    Equipment list:
    Onkyo TX-NR3010 9.2 AVR
    Emotiva XPA-3 amp
    Polk RTi70 mains, CSi40 center, RTi38 surrounds, RTi28 rears and heights
    SVS 20-39CS+ subwoofer powered by Crown XLS1500
    Oppo BDP-93 Blu-ray player
    DarbeeVision DVP5000 video processor
    Epson 8500UB 1080p projector
    Elite Screens Sable 120" CineWhite screen
  • Yashu
    Yashu Posts: 772
    edited January 2008
    Try double-sided tape.

    Doubt that will work on the aluminum, at the very least, it will have crease marks and no longer benefit (fully) from the dome structure.

    Think of an egg... you can't break a raw egg with your bare hands no matter how hard you squeeze, but if that egg has even one tiny crack, or if your hand has a ring on a finger, really anything that distorts the shell just enough to make the energy transfer not even, squash, egg all over the place. The tweeter, moving at 20khz or more, in one second, without perfect shape, you are going to get resonances. The dome tweeter was invented to stop a problem with traditional ones, at the time, they would not move as a single unit in the very high frequencies... the middle would be going in while the outside would still be coming down... not good if you want those clear HF sounds. The dome is one way of trying to have the entire radiating surface move as one unit even at 20khz, and with a crease or bump in the aluminum, really, anything that breaks that dome structure, it is going to react wildly when being moved back and forth 20,000 times per second.

    If it sounds ok, then that's fine, maybe it is my OCD talking, but I would not be able to take my mind off of what *could* be different, what I *may* be missing, ect... if 100 bucks gets you a new tweeter, go for it. B&Ws are good speakers...
  • Willow
    Willow Posts: 11,064
    edited January 2008
    you could try sucking it out! I think there was a thread about that in the past.
  • HiPerf360
    HiPerf360 Posts: 436
    edited January 2008
    Willow wrote: »
    you could try sucking it out! I think there was a thread about that in the past.


    That actually works, i did it with a friends silk dome tweeter worked just fine
  • jakelm
    jakelm Posts: 4,081
    edited January 2008
    HiPerf360 wrote: »
    That actually works, i did it with a friends silk dome tweeter worked just fine


    YYYYYUUUUUUUKKKKKKK!!!!!:eek:
    Monitor 7b's front
    Monitor 4's surround
    Frankinpolk Center (2 mw6503's with peerless tweeter)
    M10's back surround
    Hafler-200 driving patio Daytons
    Tempest-X 15" DIY sub w/ Rythmik 350A plate amp
    Dayton 12" DVC w/ Rythmik 350a plate amp
    Harman/Kardon AVR-635
    Oppo 981hd
    Denon upconvert DVD player
    Jennings Research (vintage and rare)
    Mit RPTV WS-55513
    Tosh HD-XA1
    B&K AV5000


    Dont BAN me Bro!!!!:eek:
  • davidfmartin
    davidfmartin Posts: 106
    edited January 2008
    You can also try lightly chewed gum. But I agree with others, if it sounds ok don't worry and keep the grill covers on.
  • Sherardp
    Sherardp Posts: 8,038
    edited January 2008
    Oh thats not bad, agreed, 3M tape or maybe the Vacuumm to suck it out(not sure if the latter is 100 proof though)
    Shoot the jumper.....................BALLIN.............!!!!!

    Home Theater Pics in the Showcase :cool:

    http://www.polkaudio.com/forums/showcase/view.php?userid=73580
  • Braddles
    Braddles Posts: 228
    edited January 2008
    Thanks for all the advice guys but you missed the point.

    What i need to know, is this the actual tweeter or just a dust cover???????
    2 Channel
    Amp - Jas Audio Bravo 3.2 set
    Power Cord - Tunami GPX
    CDP - Marantz cd6002 - Audio gd Ref 5 Dac
    Speakers - Tekton Lore,Polk Audio RTA11tl completely refreshed.
  • Early B.
    Early B. Posts: 7,900
    edited February 2008
    Braddles wrote: »
    Thanks for all the advice guys but you missed the point.

    What i need to know, is this the actual tweeter or just a dust cover???????

    It's part of the actual tweeter, not a "dust cover."
    HT/2-channel Rig: Sony 50” LCD TV; Toshiba HD-A2 DVD player; Emotiva LMC-1 pre/pro; Rogue Audio M-120 monoblocks (modded); Placette RVC; Emotiva LPA-1 amp; Bada HD-22 tube CDP (modded); VMPS Tower II SE (fronts); DIY Clearwave Dynamic 4CC (center); Wharfedale Opus Tri-Surrounds (rear); and VMPS 215 sub

    "God grooves with tubes."
  • miner
    miner Posts: 1,305
    edited February 2008
    Use a $9.99 Glad vacuum 'sucker' that is used to create a vacuum in the Glad freezer vacuum bags. Just don't get carried away with the amount of suction.
    [
  • ShinAce
    ShinAce Posts: 1,194
    edited February 2008
    Please do not try to repair it. That is an aluminum dome tweeter(not a cover) and made of very thin metal(almost foil). Trying to get it back in shape will likely break it completely.

    Like you said, you should not notice a difference in sound.
  • SKsolutions
    SKsolutions Posts: 1,820
    edited February 2008
    Don't blow it, suck it.
    -Ignorance is strength -
  • kuntasensei
    kuntasensei Posts: 3,263
    edited February 2008
    Don't blow it, suck it.

    Boy, if I had a dollar for every time I've said that to a woman... :D
    Equipment list:
    Onkyo TX-NR3010 9.2 AVR
    Emotiva XPA-3 amp
    Polk RTi70 mains, CSi40 center, RTi38 surrounds, RTi28 rears and heights
    SVS 20-39CS+ subwoofer powered by Crown XLS1500
    Oppo BDP-93 Blu-ray player
    DarbeeVision DVP5000 video processor
    Epson 8500UB 1080p projector
    Elite Screens Sable 120" CineWhite screen