Replacement Tweeters for RTi A7

Fried my tweeters in my two Polk Audio RTi A7 towers, pulled them out and tried to check the resistance across the tweeter itself, no resistance reading so I'm guessing there is an open in the tweeter somewhere. I called Polk Audio and they quoted me at $72 per tweeter. Does anyone know of some tweeters that they would recommend as an upgrade, or could at least point me in the direction of what the RTi tweeter specs are so I can find a cheaper replacement for them?

Thanks.

Comments

  • F1nutF1nut Posts: 40,170
    edited July 9
    No specs are available for current production drivers, so you'll have to pay the asking price.

    You should also check the crossovers for burnt resistors.
    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."


  • Toolfan66Toolfan66 Posts: 13,823
    This^^^ But you might want to tell Polk you are a member, you might get a small discount on the tweeters..
  • tonybtonyb Posts: 29,536
    Yep, I'd check the crossovers too. Be a shame if you bought 2 new tweeters only to find out they still won't work.

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  • DaveHoDaveHo Posts: 1,915
    And keep the volume in check. Fried tweeters are usually a sign you're pushing the amp into clipping. What are you powering them with?
  • I’ll double check the resistor. I think the cause is most likely (other people) pulling the 2.5mm jack out of their phones/laptops while the volume is on high causing lots of clipping. Unfortunately I don’t think there’s much I can really do about it. I always tell people to turn it off/down before unplugging it, but people say they always “forgot” before doing it again the next day. I don’t think I can do too much about that because drunk college kids don’t seem to care or think ahead. Maybe I’ll purchase a new stereo receiver and only connect with Bluetooth or ChromeCast so people aren’t able to plug in their phones.
  • cfrizzcfrizz Posts: 13,001
    Welcome to Club Polk.

    What receiver are you using, where is the volume at, and most importantly, tell your friends they are no longer allowed to touch your gear.

    Tell them they will have to cough up the money for all repairs if they do!
    Sunfire TGP III PrePro, Sunfire Cinema Grand Signature 405wpc 5 ch. Amp, Oppo 103 BluRay, Rotel RCD-1072 CDP, Sony Bravia KDL-40R510C TV, Polk S60 Main Speakers, Boston VR-920 Center Channel, SVS NSD-12 SB12 Subwoofer, Polk DSW 400 Subwoofer, Polk FXi-3 Surround Speakers
  • I’m using an Onkyo TX-8522. I usually have it up to half volume. Usually just below the point where I can’t hear much difference by increasing the volume knob. It’s at a good level but not hurting my ears.


    I just checked and it looked like the resistor labeled 5w2r7j is a bit burnt. I’ll try replacing that before getting new tweeters. Any way I can check whether the tweeters are working before I go about ordering a new resistor and soldering it on? Also, any recommendations on where to find a new one? Is this something I can go to Home Depot and find?

    Also, I think I might try and print some sort of enclosure around the 3.5mm jack and my ChromeCast that prevents anyone from removing it without a set of tools. There isn’t really an easy way to have people agree not to try and change music when your house has 50 college kids in it and half of them think everyone else needs to hear their newest Spotify playlist.

    I also have five roomates, so expecting them and any friends they invite over to treat the audio equipment properly is (completely reasonable, but realistically) setting myself up for disappointment.
  • pitdogg2pitdogg2 Posts: 10,535
    replace both speaker resistors with a Vishay-Mills 12watt 2.7ohm. You can test the tweeter with volt/ohm meter set to ohm's. if it registers 0.00 they are bad.
  • F1nutF1nut Posts: 40,170
    pitdogg2 wrote: »
    replace both speaker resistors with a Vishay-Mills 12watt 2.7ohm. You can test the tweeter with volt/ohm meter set to ohm's. if it registers 0.00 they are bad.

    Normally I would agree with going to a higher wattage resistor, but in his case that may guarantee damaging the tweeters. It might be better to stock up on 5 watt resistors.
    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."


  • danzspotdanzspot Posts: 2
    Hey Kids..I own a pair of RT 16 Tower Speakers. Bought em back in mid 1990's..($850 for the pair) I have kept them in tip top shape.Dont drive them high very often at all, however, was listening to some pop other day, and put my ear to both tweets, and I believe there shot..what would anyone suggested I replace them with??.I haven't pull either one to check wiring yet...Thanks.
  • F1nutF1nut Posts: 40,170
    One post per question is more than enough.
    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."


  • teamjhertzteamjhertz Posts: 328
    I might have a spare tweeter if you give me the model number off of yours so i can double check
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