Polk Audio CS2 center channel tweeter keeps blowing out.

kings322
kings322 Posts: 6
edited September 2012 in Speakers
First off Hello,

I bought the cs2 center channel speaker along with the Denon AVR 591 receiver and i keep blowing out my tweeter. I put my receiver on about +5 and the tweeter blew up. I also purchased a pair of the Polk Audio Monitor 60 series and i can put them up to +10 if i want and the receivers thermal protection will shut it off. Nothing happens to the Monitor 60 dome speakers or tweeters. Has anyone here had this problem with this center channel? Does polk sell a higher quality tweeter for this model center channel?

Thanks
Post edited by kings322 on

Comments

  • rebuy
    rebuy Posts: 695
    edited September 2012
    When you say +5 does that mean the volume control or the center setting for that speaker? You should never turn the volume to +5. If you are turning up the volume to +10 and the thermal protection shuts the AVR down, then you need to turn down the volume. You are probably asking for more power than the AVR can put and so it shuts down. It's just a fluke that you haven't burnt up all your speakers.

    Welcome to Polk Audio.
  • kings322
    kings322 Posts: 6
    edited September 2012
    I like to listen to my music loud but that was just to see if the other tweeters would hold up. I have noticed that my denon avr 591 doesn't seem to get loud until i get to +4 on the volume. When i was checking out receivers at bestbuy most of the pioneer receivers got pretty loud when they were in the negative volume. Could the receiver not be putting out enough power?
  • gp4jesus
    gp4jesus Posts: 1,990
    edited September 2012
    kings322 wrote: »
    II have noticed that my denon avr 591 doesn't seem to get loud until i get to +4 on the volume.
    My system seems to come alive when the volume display is above 65-that's where I set the turn-on volume default. I set the cap to 90 to keep"busy little hands" from blowing up things! Max is a very loud 100!
    Samsung 60" UN60ES6100 LED, Outlaw Audio 976 Pre/Pro Samsung BDP, Amazon Firestick, Phillips CD Changer Canare 14 ga - LCR tweeters inside*; Ctr Ch outside BJC 10 ga: LCR mids “Foamed & Plugged**”, inside* & out
    8 ga Powerline: LR woofers, inside* & out
    *soldered **Rob the Man (Xschop) LR: Tri-amped RTi A7 w/Rotels. Woofers - 980BX; Tweets & Mids - 981, connected w/Monoprice Premiere ICs
    Ctr Ch: Rotel RB981 -> Bi-amped CSi A6 Surrounds: Premiere ICs ->Rotel 981 -> AR 12 ga -> RTi A3. 5 Subs: Sunfire True SW Signature -> LFE & Ctr Ch; 4 Audio Pro Evidence @ the “Corners”. Power Conditioning & Distribution: 4 dedicated 20A feeds; APC H15; 5 Furman Miniport 20s
  • rebuy
    rebuy Posts: 695
    edited September 2012
    You have something set up wrong or incorrect settings. You over drove the Denon and caused the clipping that fried your speakers. You need to recheck all your settings, try using the owners manual.
  • Upstatemax
    Upstatemax Posts: 2,685
    edited September 2012
    It's not the speakers...

    You're driving your amp into clipping and that will destroy speakers. My Denon is VERY loud at -25, so you either like ear bleeding levels, or something else is wrong.
  • jbooker82
    jbooker82 Posts: 1,627
    edited September 2012
    Like every one else has said. It isnt the speaker. Your AVR will clip or distort way before it over heats and shuts it self down. I guess you should be lucky that your Monitor 60's are still intact.

    If you want to drive speakers at a high volume you need good clean distortion free power. Your way more likly to cook a speaker under powering vs. over powering it.
    AVR: Onkyo Tx-NR808
    Amplifier: Carver A-753x 250 watts x 3
    Fronts: Polk RTI A7 (modded by Trey VR3)
    Center: CSI A4 (modded by Trey VR3)
    Rear: FXI A4
    Sub: Polk DSW Pro 660wi
    TV: LG Infinia 50PX950 3D
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  • sponger
    sponger Posts: 325
    edited September 2012
    The 591 has auto-calibration. That didn't work for you? Did you buy it new or used? Did it come with the microphone?
    Denon X7200WA
    LSiM 705 703 704c
    Denon DP 400
    Yamaha CDC 775
  • cnh
    cnh Posts: 13,284
    edited September 2012
    Welcome to Club Polk!

    It is probably easier to clip the smaller speaker than the M-60s but that doesn't mean you won't if you keep running them at +10. Isn't max volume on a Denon, +18. I have one and I've NEVER run it at +10. I get nervous about clipping when I get close to 0 which I rarely do and my unit is not an ENTRY unit like yours. I have a 110 watts x 7, in a AVR that weighs 31 lbs.

    If you're not clipping that AVR then my handle is not cnh! Back off and maybe look into an external amplifier because I guarantee that you will continue to fry that tweeter if you play it at those levels. Look at the reviews for the CS2 and the M-70s, in particular and you'll see a number of people who did that exact same thing you're doing and were "equally" mystified!

    If you're under warranty. Call Polk up and get replacement tweeters. Then play at sane volumes!

    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]
  • rebuy
    rebuy Posts: 695
    edited September 2012
    I understand that the speakers are under warranty. Does that cover speakers that are abused by amp clipping? That is not a manufacturer defect. Must be tough to be in the speaker business when people can't run equipment properly.
  • 20hz
    20hz Posts: 636
    edited September 2012
    I did notice dvds are noticably quieter than other sources thus ypu need more ampifier to get them loud your best bet is to keep the volume under 1/2 way up untill you find a reveiver that has preamp out outs and sell yours on ebay .
    in the mean time turn your speaker level gains up so-as you wont turn the amp up as much to get the desired volume .
    There is a reason a single 80 watt amp weights more than than your denon 591 . When you have seperate amps you decide how much volume and $$ is needed to shake the house for a real movie experiance . Speakers ( especially tweeters ) die first from clipping distortion polk makes a nice product so after the first tweeter died you gotta find other amplifier methods so they hold up .


    When you have
    kings322 wrote: »
    I like to listen to my music loud but that was just to see if the other tweeters would hold up. I have noticed that my denon avr 591 doesn't seem to get loud until i get to +4 on the volume. When i was checking out receivers at bestbuy most of the pioneer receivers got pretty loud when they were in the negative volume. Could the receiver not be putting out enough power?
  • tonyb
    tonyb Posts: 33,008
    edited September 2012
    Getting an amp won't help much if he likes the volume dial in the + column. Could be he bought the wrong gear for the size of room he wants to fill with loud sound. Those speakers are easy to drive even on an entry level receiver, the problem is receiver setup, and sticky fingers on the volume dial.
    HT SYSTEM-
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  • Willow
    Willow Posts: 11,058
    edited September 2012
    Could it be he has crossed polarity on his speaker cables?
  • MADGSF
    MADGSF Posts: 603
    edited September 2012
    Agree with above, clipping the amp is frying your tweeters. Turn it down until you can properly drive your speakers and you may need larger speakers for your room.
    AVR: Elite VSX-21TXH
    Amplifier: B&K 7250 Series ii
    Misc: Velodyne SMS-1
    Mains: RTi-10
    Center: CSi-5
    Rear: Boston DSi460
    Sub: SVS PC-Ultra
    TV: Panasonic TC-P58V10
    DVD: Panasonic DMP-BD60K