Polk SRT System - Polk F/X surrounds
mjjjhjemj
Posts: 47
Hello troubleshooters,
I have the Polk SRT system for about 1/2 year. I got an incredible deal on the package and frankly for the deal I wasn't really going to worry at the time where I was going to put them or whether my wife was going to approve of them. Well it looks like I will be selling them to get something my wife approves of for the family room. But before I do that I am fully restoring them and have a question for anyone who has the F/X surround speakers used with these.
I have been testing the rear surrounds and very oddly the same tweeter on each speaker is not putting out any sound. There are two tweeters in each surround speaker and it is the one facing forward on each. I took out both tweeters and swapped them - front one now is in the facing back direction, and the back one is facing forward. I did this on both speakers to see if the issue was the tweeter. Remarkably the front facing tweeter (which was the back one) still does not put out sound on both. I find this very intriguing as what is the likelihood that both speakers do not have blown tweeters, and don't put out sound on the front facing tweeter.
Seems like a manufacturing issue that the prior owner likely just did not notice. Was this a known manufacturing issue?
Mike
I have the Polk SRT system for about 1/2 year. I got an incredible deal on the package and frankly for the deal I wasn't really going to worry at the time where I was going to put them or whether my wife was going to approve of them. Well it looks like I will be selling them to get something my wife approves of for the family room. But before I do that I am fully restoring them and have a question for anyone who has the F/X surround speakers used with these.
I have been testing the rear surrounds and very oddly the same tweeter on each speaker is not putting out any sound. There are two tweeters in each surround speaker and it is the one facing forward on each. I took out both tweeters and swapped them - front one now is in the facing back direction, and the back one is facing forward. I did this on both speakers to see if the issue was the tweeter. Remarkably the front facing tweeter (which was the back one) still does not put out sound on both. I find this very intriguing as what is the likelihood that both speakers do not have blown tweeters, and don't put out sound on the front facing tweeter.
Seems like a manufacturing issue that the prior owner likely just did not notice. Was this a known manufacturing issue?
Mike
Post edited by mjjjhjemj on
Comments
-
Hello,
Thanks for posting, let's see if we can figure this out. Are these the LSf/x surround speakers? Or, the later version SRT/SDA version with the second controller?
Regards, Ken -
Kenneth Swauger wrote: »Hello,
Thanks for posting, let's see if we can figure this out. Are these the LSf/x surround speakers? Or, the later version SRT/SDA version with the second controller?
Regards, Ken
These are the LS f/x surround speakers. -
Hello,
Since you have determined that the problem is not the tweeter that would, in all likelihood mean the problem is with the polarity selector switch. Once the treble information leaves the crossover it goes to the polarity selector, which "flips" the polarity of one of the tweeters to place it in di-pole or bi-pole settings. I would suggest removing the 4.5" driver on that side, of the speaker, and examine the inside of the speaker. Look at the connections that go from the crossover to the selector and then to the tweeter.
Regards, Ken -
Kenneth Swauger wrote: »Hello,
Since you have determined that the problem is not the tweeter that would, in all likelihood mean the problem is with the polarity selector switch. Once the treble information leaves the crossover it goes to the polarity selector, which "flips" the polarity of one of the tweeters to place it in di-pole or bi-pole settings. I would suggest removing the 4.5" driver on that side, of the speaker, and examine the inside of the speaker. Look at the connections that go from the crossover to the selector and then to the tweeter.
Regards, Ken
Will do. Did you get a lot of reports of this on the LS F/X surrounds? The fact that this identical issue exists on both speakers to me seems suspect and that this was likely a parts issue or manufacturing problem. -
Hello,
No, hardly and problems at all. As a reminder, it is important to operate the LSf/x in the "small" setting, introducing a 100Hz high pass filter. It is not intended for high power full range use.
Ken -
Hello,
That should be, "hardly any problems at all" sorry.
Ken
![[Deleted User]](https://w8.vanillicon.com/83b82048d67877ca27bbc25d5d38f9d3_100.png)