Free Shipping on All Orders 1-866-764-1801

Vist our Online Store
+ Reply to Thread
Page 2 of 5 FirstFirst 1 2 3 4 5 LastLast
Results 31 to 60 of 136
  1. #31

    Member Sales Rating: (31)

    Join Date
    Feb 2007
    Location
    Long Island
    Posts
    14,733

    Default

    F1nut is correct.
    "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

  2. #32

    Member Sales Rating: (0)

    Join Date
    Dec 2009
    Location
    Canuckistan
    Posts
    3,061

    Default

    Wow Kudo's to Ken and Polk.

  3. #33

    Member Sales Rating: (0)

    Join Date
    Dec 2011
    Location
    Louisiana
    Posts
    416

    Default

    Quote Originally Posted by Face View Post
    If this thread was started at the Emotiva forum, his thread would probably be deleted. Although it wasn't their fault, it's nice of Polk for stepping to the plate and helping a guy out.
    +1..yep!.They took away from my profile where you upload a photo, cause I posted photos of other amp's of what they sell on there Forum.Now I can only post links and I have some Emotiva gear.But after all it is there Forum to do what they please.I have never "knock" there amps or any of the gear they sell or any other gear I don't do that.But yeah they will and have deleted Peoples post on that Forum.I think its time to upgrade my amps"Vincents" looking good about now.

  4. #34

    Member Sales Rating: (0)

    Join Date
    Dec 2012
    Location
    Great White North
    Posts
    1,082

    Default

    For the record this thread is alive and well over at Emo.
    Lots of help offered for Blindsay.
    Pointing him here to have upgraded crossover work done.
    I have had posts removed from here so..

  5. #35

    Member Sales Rating: (0)

    Join Date
    Jan 2013
    Posts
    58

    Default

    Quote Originally Posted by F1nut View Post
    This is Polk's warranty....



    Since your amp sent excessive DC voltage to your speaker the part in bold would apply to your situation.
    you have no idea what the amp did, more specifically no proof

  6. #36

    Member Sales Rating: (31)

    Join Date
    Feb 2007
    Location
    Long Island
    Posts
    14,733

    Default

    Quote Originally Posted by Blindsay View Post
    you have no idea what the amp did, more specifically no proof
    What do you think what happens when an amp "blows up"?
    "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

  7. #37

    Member Sales Rating: (0)

    Join Date
    Jan 2013
    Posts
    58

    Default

    Quote Originally Posted by Face View Post
    What do you think what happens when an amp "blows up"?
    while that's my assumption, there is no proof it was the amp that killed the speaker or vice versa

    Also an amp would really have to mess up to send DC voltage to a speaker

    I posted this in 3 places. im not surprised that on the polk forums most people blame the amp, on emotiva I got a mix of the amp and the speaker and on a neutral forum I got a mix of the amp and speaker.

  8. #38

    Member Sales Rating: (1)

    Join Date
    Sep 2010
    Location
    I'M BANNED,I'M NATIONWIDE
    Posts
    2,662

    Default

    Are the speakers new?

  9. #39

    Member Sales Rating: (0)

    Join Date
    Dec 2011
    Location
    Louisiana
    Posts
    416

    Default

    Quote Originally Posted by Jhayman View Post
    For the record this thread is alive and well over at Emo.
    Lots of help offered for Blindsay.
    Pointing him here to have upgraded crossover work done.
    I have had posts removed from here so..
    +1..wasn't knocking any Forum was just saying.

  10. #40

    Member Sales Rating: (0)

    Join Date
    Jan 2013
    Posts
    58

    Default

    Quote Originally Posted by brgman View Post
    Are the speakers new?
    yeah only a few weeks old

  11. #41

    Member Sales Rating: (1)

    Join Date
    Sep 2010
    Location
    I'M BANNED,I'M NATIONWIDE
    Posts
    2,662

    Default

    Then take them back to where you bought them and get another set.
    How old is the mono block?

  12. #42

    Member Sales Rating: (13)

    Join Date
    Mar 2002
    Location
    The Mars Hotel
    Posts
    30,423

    Default

    But the emo is used.

    This from the guy that sold him the amps,
    My take on this is that the LSi crossover went kaboom with the current the UPA's can give. This likely shorted the tweeter or sent a strong pulse to it and blew it. I think the low impedance of the LSi minus the tweeter probably faced the amp with a now sub 1 ohm impedance which is what smoked the amp.
    One of the problems with his theory is that the issue occured as soon as the amp was turned on (resulted in a loud howling noise thru the speaker in question) and the AVR volume level was -50dB. This indicates excessive DC voltage from the amp.

    Some there have mentioned a problem with the LSi crossovers. Well, the only problem with the crossovers is an under valued resistor, which can cook when an amp is pushed to the point of clipping, which was obviously not the case here. Furthermore, if the resistor cooked from a clipped signal it would not cause the amp to blow. Therefore, the amp was defective and caused the speaker damage.
    '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 turd by the clean end."

  13. #43

    Member Sales Rating: (13)

    Join Date
    Mar 2002
    Location
    The Mars Hotel
    Posts
    30,423

    Default

    Quote Originally Posted by Jhayman View Post
    Lots of help offered for Blindsay.
    That's debatable. I saw only one post where the guy got it right, the amp took out the speaker.

    I have had posts removed from here so..
    The difference and it is a BIG difference is that none of your posts were deleted because you were being critical of Polk products or you posted photos of other products. No, your posts were deleted because they were troll type posts and/or flat out asinine.
    '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 turd by the clean end."

  14. #44

    Member Sales Rating: (31)

    Join Date
    Feb 2007
    Location
    Long Island
    Posts
    14,733

    Default

    The LSi15 has a MINIMUM impedance of 3ohms, not 1.
    "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

  15. #45

    Member Sales Rating: (1)

    Join Date
    Sep 2010
    Location
    I'M BANNED,I'M NATIONWIDE
    Posts
    2,662

    Default

    Quote Originally Posted by F1nut View Post
    But the emo is used.

    This from the guy that sold him the amps,

    One of the problems with his theory is that the issue occured as soon as the amp was turned on (resulted in a loud howling noise thru the speaker in question) and the AVR volume level was -50dB. This indicates excessive DC voltage from the amp.

    Some there have mentioned a problem with the LSi crossovers. Well, the only problem with the crossovers is an under valued resistor, which can cook when an amp is pushed to the point of clipping, which was obviously not the case here. Furthermore, if the resistor cooked from a clipped signal it would not cause the amp to blow. Therefore, the amp was defective and caused the speaker damage.
    I don't recall any of this info being in the OP here.
    So are we blaming Polk here and Emo over at their forum?

  16. #46

    Member Sales Rating: (37)

    Join Date
    Apr 2006
    Location
    Dallas area
    Posts
    2,393

    Default

    Quote Originally Posted by brgman View Post
    I don't recall any of this info being in the OP here.
    So are we blaming Polk here and Emo over at their forum?
    Post #37:

    Quote Originally Posted by Blindsay View Post
    I posted this in 3 places. im not surprised that on the polk forums most people blame the amp, on emotiva I got a mix of the amp and the speaker and on a neutral forum I got a mix of the amp and speaker.

  17. #47

    Member Sales Rating: (0)

    Join Date
    Dec 2009
    Location
    Canuckistan
    Posts
    3,061

    Default

    Quote Originally Posted by Blindsay View Post
    Also an amp would really have to mess up to send DC voltage to a speaker
    Like one or more failed output transistors.

    But since the tweeter is capacitively coupled it should not see the excessive DC ,however the woofer voicecoil would take a direct hit.
    Has it been determined what parts in the crossover and or if the tweeeter is actually nuked?
    Last edited by FTGV; 02-17-2013 at 07:57 PM.

  18. #48

    Member Sales Rating: (0)

    Join Date
    Jan 2013
    Posts
    58

    Default

    Quote Originally Posted by FTGV View Post
    Like one or more failed output transistors.

    But since the tweeter is capacitively coupled it should not see the excessive DC ,however the woofer voicecoil would take a direct hit.
    Has it been determined what parts in the crossover and or if the tweeeter is actually nuked?
    I haven't, I didn't a visual inspection and nothing is visually damaged. All the remaining drivers work, I swapped in a good working tweeter and it still didn't work on that side so I know the tweeter and the crossover needed to be replaced.

  19. #49

    Member Sales Rating: (0)

    Join Date
    Dec 2011
    Location
    Louisiana
    Posts
    416

    Default

    Yep..

  20. #50

    Member Sales Rating: (13)

    Join Date
    Mar 2002
    Location
    The Mars Hotel
    Posts
    30,423

    Default

    Polk has already shipped him new parts. You can't beat their customer service.
    '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 turd by the clean end."

  21. #51

    Member Sales Rating: (13)

    Join Date
    Mar 2002
    Location
    The Mars Hotel
    Posts
    30,423

    Default

    But since the tweeter is capacitively coupled it should not see the excessive DC
    That's a good point, so the amp just sent a distorted signal to the speaker taking out the tweeter and high frequency section of the crossover.
    '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 turd by the clean end."

  22. #52

    Member Sales Rating: (0)

    Join Date
    Jan 2013
    Posts
    58

    Default

    Quote Originally Posted by F1nut View Post
    Polk has already shipped him new parts. You can't beat their customer service.
    2 things.

    1. Sorry about getting pissy with you the other day, I was just in a bad mood as I was happy to finally get everything hooked up and then boom. I also was a little irked being told they weren't going to help me even before I spoke to them. Glad it worked out in the end though.

    2. Yes the parts are on the way, I have a slight concern about them being the correct part as it was referred to my "speakers" are on the way (rather than speaker + crossover) so hopefully that was just a miss type. Emotiva has received the bad amp and hopefully its getting fixed as we speak. Crossover is a bit of a pain to replace but its far better than trying to send back the entire speaker.


    edit: lied I had a third

    Since I have to have the woofer out anyways, do you think the woofer upgrade that people do is really worth it, I figure I might do it since I have it out anyways
    Last edited by Blindsay; 02-21-2013 at 07:18 PM.

  23. #53

    Member Sales Rating: (13)

    Join Date
    Mar 2002
    Location
    The Mars Hotel
    Posts
    30,423

    Default

    1. We're good. I can be a bit too blunt, so sorry about that.

    2. Guess you'll find out soon enough....LOL

    3. I have no personal experience with that mod, but from everything I've read here it is well worth 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 turd by the clean end."

  24. #54

    Member Sales Rating: (0)

    Join Date
    Jan 2013
    Posts
    58

    Default

    Quote Originally Posted by F1nut View Post
    1. We're good. I can be a bit too blunt, so sorry about that.

    2. Guess you'll find out soon enough....LOL

    3. I have no personal experience with that mod, but from everything I've read here it is well worth it.
    Thanks, Yeah I guess for the $90 or whatever it wont hurt to try it out anyways. I think ill give them a try.

  25. #55

    Member Sales Rating: (0)

    Join Date
    Jan 2013
    Posts
    58

    Default

    Since the new crossover and tweeter are on the way I took the time to finish pulling the old crossover out, that black sticky crap was annoying lol, especially since I remember reading I need to salvage that for the reinstall of the new one.

  26. #56

    Member Sales Rating: (37)

    Join Date
    Apr 2006
    Location
    Dallas area
    Posts
    2,393

    Default

    Yes, the woofer upgrade is worth it.

  27. #57

    Member Sales Rating: (0)

    Join Date
    Jan 2013
    Posts
    58

    Default

    Anyone have a moment to assist me troubleshoot what actually died in the crossover? I heard from Emotiva the amp is on the bench working without issue :/ that aside I am curious now what exactly died on the crossover. I have my trusty multimeter with me, set it to ohms and the tweeter unsurprisingly reads nothing.

    Hooked up one end of the multimeter to the negative terminal on the crossover (where I would attach the speaker cable) and the other end of it to the negative cable that would connect to the tweeter. I get a reading on the multimeter of approx. .2ohm. When I switch over to the positive terminal and then the positive speaker lead I get no reading at all.

    So it sounds like somewhere if I trace the route of the positive connecting I will find the break and then whats wrong

    something does seem a bit odd though. if I hook to positive at the terminal and then woofer - I get a reading

    edit: I set the multimeter to open/short and it beeps if there is a short (which I want in this case) hooked to the positive terminal of the terminal and then with the other end touch it to every single other connection. Only Woofer negative makes a connection
    Last edited by Blindsay; 02-26-2013 at 09:41 PM.

  28. #58

    Member Sales Rating: (0)

    Join Date
    Jan 2013
    Posts
    58

    Default

    let me try to organize this more clearly

    With one end of the multimeter In the negative speaker terminal I get a tone (indicating a connection) with the other end in
    +w
    -d2
    -t

    moving the multimeter to the positive speaker terminal I get a tone only on
    -w


    I started tracing it and confirmed the resistor along the tweeter is dead but it doesn't explain the other weird readings, or does it?
    Last edited by Blindsay; 02-26-2013 at 09:58 PM.

  29. #59

    Member Sales Rating: (13)

    Join Date
    Mar 2002
    Location
    The Mars Hotel
    Posts
    30,423

    Default

    Here's the schematic, http://www.polkaudio.com/forums/show...l=1#post434888

    I heard from Emotiva the amp is on the bench working without issue
    That seems odd considering the smell coming from it and what you say happened.
    '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 turd by the clean end."

  30. #60

    Member Sales Rating: (0)

    Join Date
    Jan 2013
    Posts
    58

    Default

    Quote Originally Posted by F1nut View Post
    Here's the schematic, http://www.polkaudio.com/forums/show...l=1#post434888



    That seems odd considering the smell coming from it and what you say happened.
    Thanks for those schematics, that will help a lot. I tested each resistor individually and did confirm the one that usually blows up is dead, not sure if that accounts for the other oddities I noticed but that schematic should tell me.


    And yes I am a little discouraged about the amp. when the incident occurred I put each upa-1 in a separate room and I had my roommate and one of my friends who was there smell each amp and it was def. this one and the smell stuck with it for a long time.

    Edit: hmm maybe I should have become an electrical engineer instead of a computer science major lol, I understand bits and pieces of that schematic but not enough to aid me in finding the problem lol

    it does look like that dead resistor for the tweeter "r1" should have no effect on the rest of the drivers though so im guessing if I keep looking something else is dead
    Last edited by Blindsay; 02-26-2013 at 10:33 PM.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

     

Similar Threads

  1. lsi 15 tweeter not working
    By slammerag03 in forum Troubleshooting
    Replies: 16
    Last Post: 02-11-2010, 09:42 AM
  2. LSI 9 tweeter not working
    By Shell in forum Troubleshooting
    Replies: 7
    Last Post: 12-12-2009, 12:31 AM
  3. Need Help CSi A6 tweeter not working
    By SmosRTiA9s in forum Speakers
    Replies: 5
    Last Post: 11-29-2009, 11:40 AM
  4. Need Help SDA 1 Tweeter not working
    By derek_murray in forum Troubleshooting
    Replies: 5
    Last Post: 10-05-2008, 01:15 PM
  5. Help with non working tweeter in rt-8
    By Orange_Crush in forum Troubleshooting
    Replies: 1
    Last Post: 06-04-2007, 11:12 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts